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- which of the following is not characteristic of neurons?
which of the following is not characteristic of neurons?
C) destroy ACh a brief period after its release by the axon endings a. The person may have an increase in heart rate. 2. Neuroglia that control the chemical environment around neurons by buffering potassium and recapturing neurotransmitters are ________. It is composed of densely packed cells. b. Pons a. hippocampus a. impair memory. The axon hillock is located: c. Myasthenia Gravis. C) innervation of glands threshold Voltage-gated Na+ D) positively charged and contains more sodium. a. parietal lobe. A Pyrex container is completely filled with 275cm3275 \mathrm{~cm}^3275cm3 of mercury at 10.0C10.0{\degree} \mathrm{C}10.0C. C. cell body. ANSWER : The neurons are included in the somatic body cells but are. a. the classification is based on the number of processes extending from the cell body b. multipolar neurons have several axons and one dendrite c. most neurons in the; Which of the following neurons forms the blood-brain barrier? They are robust signaling cells. The part of a neuron that conducts impulses away from its cell body is called a(n) ________. Visual disturbances, paralysis, and weakness, Elliot Aronson, Robin M. Akert, Samuel R. Sommers, Timothy D. Wilson, Elliot Aronson, Robin M. Akert, Timothy D. Wilson. d. improve recovery from traumatic brain injury. (a) dendrites (b) cell body (c) myelin (d) axon terminal. D. Involved in fast-acting body control. O They generate very fast O They are long when compared to other cells in the body O They help carry oxygen to different body parts O They do not have a nucleus. 18. When the neurons were damaged, the number of Nissl corpuscles decreased significantly . The sheath of Schwann is also called the ________. a. interneuron. channels open Influx of Na+ AP regenerated in a. M4 52. b) Myelin prevents conduction of electricity from the axon hillock to the axon terminal. b. Axon and soma The contractions of skeletal muscles pull on tendons and move bones of the skeleton. Alzheimer's disease (AD) is a progressive neurodegenerative disorder with an increasing worldwide prevalence. As a component of the hyperdirect and indirect pathways, the STN is important for constraining movement, thought, and emotion through synaptic excitation of GABAergic basal ganglia output neurons. The significance of the myelin sheath surrounding axons of werve neurons is that ia is B. composed of synaptio vesieles, which corapletely botate the nouron due w ins whter dianecer. b. the person has a disease that affects myelin around axons. a. Oligodendrocytes c. Extrapyramidal System Which of the following would NOT be an example of having an activated sympathetic B) amino acid Experts are tested by Chegg as specialists in their subject area. D) voltage regulated repolarization, Neuroglia that control the chemical environment around neurons by buffering potassium and recapturing neurotransmitters are ________. A) release nerve growth factor Numerous Nissl bodies were observed, indicating that the neurons had a high ability to synthesize proteins. lowers the probability of producing an action potential. a. corpus callosum. Potentials that are short-lived, local changes in membrane potential that can be either depolarized or hyperpolarized are called ________ potentials. c. The patient has a low level of transcription factors. 20. C) opening of voltage-regulated channels 36. a. Which neurons belong to the efferent pathway? Describe which neurons are considered cholinergic in both the parasympathetic and sympathetic divisions. C) opens K+ or Cl- channels Central Nervous System Neuroglia found in the CNS that bind axons and blood vessels to each other are called ________. b. Reactive astrocytes A drug that caused someone to make a reckless decision might be affecting the: c. they form an insulating material around axons. D) They are mitotic. likely acting upon? a. forebrain. a) Myelinated axons transmit nerve impulses via continuous conduction. The interior is ________. _____________ is a process for responding to brain injury. The Quadratic Formula from Kinematics In this problem we show how the kinematic equations of motion can be used to derive the quadratic formula. 42. d. frontal lobe. 39. Required fields are marked. Just what does pass from the neurons to the muscle c. Neurons are specialized cells that can do which of the following that most other cells cannot do? C) depolarization In myelinated axons the voltage-regulated sodium channels are concentrated at the nodes of Ranvier. The neuronal membrane. A) motor neurons 2. (d) All of these are characteristic of neurons. All rights reserved. Learn about the neuron diagram, structure, and function. A. c. a ventricle. sure to include the influence of German philosopher Karl Marx in d. pituitary gland. During depolarization, the inside of the neuron's membrane becomes less negative. A) the impulse would move to the axon terminal only Neurons are the cells that make up the brain and the nervous system. d. ventral root. 29. In myelinated axons the voltage-regulated sodium channels are concentrated at the nodes of Ranvier. The presence of at least one Y chromosome indicates: 3. A) innervation of smooth muscle of the digestive tract B) innervation of cardiac muscle C) innervation of skeletal muscle D . What parts of a neuron are completely contained within a ganglion? d. gyri. If a neuroscientist stated that a brain structure had efferent neurons, what can be concluded? A neuron is a cell that communicates with the brain. c. the thalamus. Then, underline the verb in parentheses that agrees with the subject. d. None of these are correct. Are most pedagogues more interested in automation or orthography? d. oligodendrocytes fail to myelinate re-growing axons. A) the myelin sheath Strong stimuli cause the amplitude of action potentials generated to increase. D) sensory and motor neurons that supply the digestive tract, What are ciliated CNS neuroglia that play an active role in moving the cerebrospinal fluid called? This may account for the cycles of relapse and remission in different patients. c. gene duplication. C. Myelin traps sodium ions in the ax. 54. It is important when reducing any model to first identify these characteristic behaviours. Tell why you think so. Psych 4035 Ch 3 Practice and Reading Quizzes, David N. Shier, Jackie L. Butler, Ricki Lewis, Charles Welsh, Cynthia Prentice-Craver, David Shier, Jackie Butler, Ricki Lewis, Chapter 3 Formatting Documents- Val Caylor. d. reduce cortical arousal. a. it provides a protective cushion for the brain. d. Parkinson's disease. a. Pupil dilation They have long fibers from CNS to ganglion. (1991) finds that the CA1 neuron exhibits trains of action potentials when a small current (< 1 nA) is applied to the soma, but a full calcium spike and burst followed by trains of action potentials when the same small current is applied to . 1. Which of the following is NOT characteristic of the sympathetic division of the autonomic nervous system? When one or more presynaptic neurons fire in rapid order it produces a much greater depolarization of the postsynaptic membrane than would result from a single EPSP; this event is called ________ summation. Which of the followings cells accounts for roughly half of the volume of the nervous system? Choose the correct order of these events below. 4. D) tracts, The term central nervous system refers to the ________. Which of the following is not a chemical class of neurotransmitters? A) cell body A) They conduct impulses. Transcribed image text: Which of the following is not a characteristic of neurons? A drug that reduces the activity of the amygdala would likely: conditions in Russian society that led to the Revolution of 1917. Differentiate the actions and chemical messengers in the endocrine system from those in the nervous system. C) They have an exceptionally high metabolic rate. In the discussion section the authors wrote "In this study, we observed that different paradigms of tES application could ameliorate motor function impairments in ICH induced by collagenase administration into the striatum of rats.". specific or different from others in some way that they do not have. In what way does the interior surface of a cell membrane of a resting (nonconducting) neuron differ from the external environment? 41. The basal ganglia act to stabilize voluntary movements. C) An inhibitory postsynaptic potential occurs if the inhibitory effect is greater than the excitatory, causing hyperpolarization of the membrane. D) astrocytes, Immediately after an action potential has peaked, which cellular gates open? A) postsynaptic potential b. Myelin prevents conduction of electricity from the axon hillock to the axon terminal. c. nucleus accumbens. Which of the following describes the nervous system integrative function? c. meninges. Cells may have long extensions. From a historical standpoint, no other cell type has attracted as much attention or caused as much controversy as the nerve cell. WHICH OF THE FOLLOWING IS TRUE REGARDING UMNS ? Group C fibers are not capable of saltatory conduction. A) long distance signaling The frequency of impulse transmission indicates the stimulus intensity and the brain responds appropriately. a. Doral root b. transcription factors. b. Epigenetics Some neuroglia remove debris and foreign material from the nervous system. STRUCTURAL FUNCTIONAL CHARACTERISTICS OF NERVOUS AND GLIAL CELLS. C) Neurotransmitter receptors are located on the axons terminals of cells. b. Which of the following statements most accurately describes the effects caused by binding of the neurotransmitter (green dots) to the structure labeled C? a. Preganglionic neurons tend to be long, with the ganglion located in or near the effector target tissue(s). d. Nuclei. Cold sores on the skin of the mouth occur when herpes simplex viruses that are dormant in neural ganglia become active and travel to the skin of the mouth. 44. d. medulla. a. temporal lobe. (d) All of these are characteristic of neurons. D) innervation of skeletal muscle, Collections of nerve cell bodies outside the central nervous system are called ________. d. inferior colliculus. A. ependymal cells B. Schwann cells C . Upper motor neurons are classified according to the pathways they travel in C. The Babinski response is not characteristic of paralysis from UMN lesions That part of the nervous system that is voluntary and conducts impulses from the CNS to the skeletal muscles is the ________ nervous system. Its axon, the postganglionic axon, extends to the effector organ. Myelination of the nerve fibers in the central nervous system is the job of the oligodendrocyte. a. pituitary gland. A. d. astrocytes form and maintain the blood-brain barrier. The patient has a polymorphism that slow metabolism of a drug. Some axon terminals contain more than one kind of neurotransmitter. c. genes. Briefly describe 6 effects this division has on the body. C) biogenic amine Why does injection of a local anesthetic into a finger still cause a loss of the sensation of touch from the finger? Describe the types of neurons, their structure and their function. d. ribosome transcription. These cells have a star-like shape and a central body that contains the . b. hypothalamus d. hippocampus. b. auditory information. d. Vagus nerve. March 17, 2022. Saltatory conduction is made possible by ________. How can potentially poisonous gases like NO and CO be used by the body? Extrapyramidal side effects produced by antipsychotic drugs are similar to the symptoms of: kg 1), . Which of the following portions of the neuron transmits neurotransmitters? Which of the following is not characteristic of neurons? The parasympathetic division includes the pelvic nerves. c) Myelinated axons utilize fewer, Which of the following statements does not accurately desoribe a characteristic of the autonomic nervous system? Events that occur during synaptic activity are listed here, but they are arranged in an incorrect order. True or False, The overlapping functions of the nervous system are sensory input, integration, and motor output. Question. c. hippocampus. b. oligodendrocytes. a. reference memory. Sensory Neurons Motor Neurons Inter-Neurons a. medulla. taking the substance. Estimate the mass of Hg vapor present in the type of long, thin fluorescent tubes used in offices. B) Specific potassium gates will open. The patient is noncompliant and needs additional monitoring. Neurons: A) senses changes in the environment A single type of channel will open, permitting simultaneous flow of sodium and potassium. (a) hardened cells and neurons (b) neurons and supporting cells (c) chondrocytes and neurons (d) neuronocytes and smooth muscle cells. These K+ ions decrease the positive ion concentration momentarily below the normal -70mV and thus hyperpolarize the cell. Growing numbers of sodium channels appear spontaneously in the demyelinated fibers so that conduction resumes, even if slower. . c. medulla d. implicit memory. c. pons. d. transcription factor. We reviewed their content and use your feedback to keep the quality high. The prefrontal cortex is important for working memory function. What should the nurse explain to the patient regarding the role of serotonin and depression? D) spinal cord and spinal nerves, The substance released at axon terminals to propagate a nervous impulse is called a(n) ________. A substance that directly activates gene transcription is likely acting as a: adjacent axon segment. The hills on the surface of the brain are referred to as: Download Citation | Crosstalk between m6A mRNAs and m6A circRNAs and the time-specific biogenesis of m6A circRNAs after OGD/R in primary neurons | Cerebral ischaemiareperfusion injury is an . Estimate the number of moles of Ar in a typical lightbulb. order to draw a diagram in her notebook. C ) brain and spinal cord. A) Sensory neuron B) Motor neuron C) Interneuron D) All of the above. d. support and brace neurons. B) anchor neurons to blood vessels b. motor fibers that conduct nerve impulses from CNS to skeletal muscles. B. C) are crucial in the production of neurotransmitters c. The person would later be unable to recall events that took place for some period of time after c. neurotrophins. Question. Which of the following is false or incorrect? Identify the neuron type described: Two neuron types whose cell bodies are in the spinal cord (CNS). Give a valid explanation of why this could occur. 14. Neurons in the CNS are organized into functional groups. d. cause a tremor. These include nerve cells (or neurons) and glial cells (or glia ). What type of channel on the postsynaptic membrane binds neurotransmitter? What are the neuron functions for the peripheral nervous system? B) amplitude of various sizes The latter from the brain to the spinal cord. B. axon. b. the structure is closer to the midline of the brain. New three-photon miniature microscopes open the study of neuronal networks to those deep in the brains of behaving animals. Which of the choices below describes the ANS? What are the functional classifications of neurons? According to the signal, carried by motor nerves to effector organs, the muscles and glands . b. efferent neuron. c. The cerebral cortex includes the cerebellum. Multiple sclerosis (MS) is a disease in which the myelin sheaths are destroyed. b. inhibit axon growth. a) axon b) axon hillock c) dendrites d) soma, Which of the following is not a structural feature of a neuron? Which of the following is the study of mechanisms of gene expression not involving b. Interneurons. What distinguishes nerve cells and other excitable membranes (e.g., muscle cells) is that they are capable of changing their resting potential. a. midbrain. 27. Ans: they are mitotic Unli . True or False, Unipolar neurons have axons structurally divided into peripheral and central processes. A) the impulse would move to the axon terminal only. Demyelination interferes with saltatory conduction, which would result in a slowing down of nerve impulse propagation. This protective role is important because cells of the immune system are denied access to the CNS. a. polymorphisms. b. thalamus. d . 72. Which of the following is correct? d. The cerebral cortex is found on the surface of the brain. researcher would: The autonomic nervous has control centers in the: Mountainside's local landscaping business totaled approximately $789,400 in sales for the year. A) ependymal cells described as having a word on the tip of your tongue, might have abnormal functioning in the: Immediately after an action potential the potassium gates, being slow gates that do not respond to change in the electrical charge, allow additional K+ ions to flood into the cell. a. sensory neuron b. interneuron c. motor neuron d. gland e. muscle. True or False, Some neurotransmitters can be either excitatory or inhibitory depending upon the receptor. The structure that meets the spinal cord in the hindbrain is the: Answer: Option D is correct Explanation: Neurons generally do not e. Just from looking down a microscope, however, it becomes very clear that not all neurons are the same. C) responds to stimuli by gland secretion or muscle contraction, The period after an initial stimulus when a neuron is not sensitive to another stimulus is the ________. (a) They conduct impulses. d. Autonomic Nervous System, 21. Reflexes are rapid, automatic responses to stimuli. Which of the following is the mechanism by which these viruses travel from the ganglia (located within the head . What does myelin do for neurons? alternations to DNA sequences? a. the structure is below the area. What type of motor neuron stimulates skeletal muscle fibers to contract by the excitation contraction mechanism? 58. b. control the chemical environment around neurons. During depolarization, the inside of the neuron's membrane becomes less negative. An impulse from one nerve cell is communicated to another nerve cell via the ________. 30. Describe the structure of neurons 2. a. the thin filaments of smooth muscle fibers are attached to dense bodies. True or False, The nodes of Ranvier are found only on myelinated, peripheral neuron processes. c. reticular formation. A patient was admitted for depression. The small layer of tissue surrounding the cerebral aqueduct in the brain is called: 2. c. striations present are due to the orderly arrangement of actin and myosin. Serotonin is a biogenic amine neurotransmitter widely distributed in the brain, where it plays a role in emotional behavior and helps to regulate the biological clock. a. Oligodendrocytes GBA variants increase the risk of Parkinson's disease (PD) by 10 times. A. Myelin insulates neurons, keeping them at a high enough temperature to function well. A postsynaptic cell can be a neuron, a muscle cell, or a secretory cell. Select the correct statement regarding synapses. Contains lymphatic vessel. Which of the following is not characteristic of neurons? C) Sodium gates will open first, then close as potassium gates open. The interior of a neuron is composed of cytoplasm and a gel that is called. The reticular activating system includes all of the following structures except: copyright 2003-2023 Homework.Study.com. d. increased protection of the brain. In the presence of invading microbes, microglial cells become macrophages to phagocytize the microbes and neuronal debris. formation. The oligodendrocytes can myelinate several axons, Cell bodies of sensory neurons may be located in ganglia lying outside the central nervous system, During depolarization, the inside of the neuron's membrane becomes less negative. 2 introduce new . A) innervation of smooth muscle of the digestive tract Which of the following is not a function of the autonomic nervous system? B) Ions always move passively across membranes. 1. Which of the following is false or incorrect? In addition to diffusion, what are two other mechanisms that terminate neurotransmitter activity? 64. hippocampus, which of the following would most likely be the result? Sensory receptors for touch (and pressure) respond to physical deformation of the receptors, resulting in the opening of specific mechanically gated ion channels. Anatomy and Physiology questions and answers. Hint. 1. Is the information in this quote about afferent of efferent? a. Basal ganglia a. increase the activity of reactive astrocytes. A) resting period D) stimulate the production of acetylcholine, Which of the following is not a function of the autonomic nervous system? a. Pons a. the hippocampus. It is concluded that motor and sensory axons have a different substrate preference at early postnatal stages but this difference is lost in the adult. The cell bodies of the upper motor neurons are located in the spinal cord B. d. temporal lobe. Many drugs that produce highly enjoyable effects likely do so by affecting the: C) microglia 80. C) receptor B) oligodendrocytes Which of the following is not found in the limbic system? What effect might a disease that destroyed oligodendrocytes have on neuronal function? What is the functional neuron type that is the most prevalent in the CNS? b. hindbrain. d. Extrapyramidal System. C) An excitatory postsynaptic potential occurs if the excitatory effect is greater than the inhibitory effect but less than threshold. d. pineal gland. Answer (1 of 3): So a neuron is a specialized cell in the brain with certain characteristics. c. M2 a. Autonomic pathways consist of two types of motor neurons. a. alertness. 69. ependymal cells____ help to circulate the cerebrospinal fluid: which of the following is an excitatory nerotransmitter secreted by motor neurons innervating skeletal muscles? ce3z/(4zi)3dz. a. postganglionic terminals. 2.Motor. A) Cells with gap junctions use chemical synapses. C. Afferent. Which of the following is NOT characteristic of the sympathetic division of the autonomic nervous system? The oligodendrocytes can myelinate several axons. c. midbrain. the sympathetic division of the autonomic nervous system. c. Motor neurons. the sympathetic division of the autonomic nervous system. Inhibitory postsynaptic potentials (IPSPs) are "firing," but due to the neurotransmitter released and its action, the postsynaptic neuron is inhibited from "firing" (hyperpolarized). b. cholinesterase. However, the neuron in question does not transmit an impulse. Two subtypes of motor neurons have been identified: inferior and superior. Study with Quizlet and memorize flashcards containing terms like Neuroglia that control the chemical environment around neurons by buffering potassium and recapturing neurotransmitters are _____., Which of the following is not a function of the autonomic nervous system? ___________ are clusters of neuron cell bodies in the sympathetic and parasympathetic Specialized cells in the nervous system that control behavior, senses, and movement are. Preganglionic neurons are located in the brain stem and sacral segments of the spinal cord. What are ciliated CNS neuroglia that play an active role in moving the cerebrospinal fluid called? However, the electrical impulses cannot pass directly from a nerve cell to the skeletal muscle cells to excite them. The principles outlined above can be applied to the neuron and its ionic contents.. Discover and discuss the meaning of dendrites, axon, membrane polarization, membrane depolarization, and synapses. a. increase the activity of postganglionic sympathetic neurons. C) They are mitotic. muscles throughout the body? Integrate. a. periaqueductal gray. Neurons are relatively small, simple-structured cells. c. synapses. 51. Some ions are prevented from moving down their concentration gradients by ATP-driven pumps. What are the different types of neurons in the ANS and where are they located? Like the heart, lungs, and stomach, the nervous system is made up of specialized cells. a) Neurons are specialized to conduct electrical impulses. E) nucleic acid. c. pineal gland. Which of the following is not true of graded potentials? stem c.) muscles d.) osteocytes. a. regenerating axons may be unable to regain previous connections through the site of injury. 1. Efferent nerve fibers may be described as motor nerve fibers. d. tremor. Collections of nerve cell bodies in the peripheral nervous system are called ________. A thirestold potential must be excecded or reached. 7. Methods: Participants were prospectively enrolled . Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system (CNS) coined by inflammation and neurodegeneration. An inhibitory postsynaptic potential (IPSP) is associated with ________. B) They can form on receptor endings. a) axons b) dendrites c) Schwann cell d) cell body, Which of the following forms myelin in axons at PNS? d. act as transcription factors. 23. Which of the following is NOT a type of circuit? Expert Answer. As you start working out, you notice that your heart rate and breathing rate start to increase. b. transcription factors. Preganglionic neurons are short and synapse in ganglia located near the spinal cord. What mechanism is responsible for axonal transport? A) peripheral and spinal nerves B) brain, spinal cord, and peripheral nerves C) brain and spinal cord D) spinal cord and spinal nerves. Which of the following is not characteristic of neurons? a. glia b.) Do not divide - (neural stem cells are an exception) 3. Which component has a role in the postsynaptic cell during synaptic activity? a. c. preganglionic terminals. A. Sensory. Sensory and motor divisions. This results in increased speed of impulse propagation. b. the medulla. d. Neurons. That is, they have a single axon and many dendrites. D) control the chemical environment around neurons d. RNA. A) support and brace neurons The cells communicate by sending signals between different parts of the brain, and the neurons can interface with gray matter nuclei. 55. DI) They have an exceptionally high metabolic rate. d. a transcription factor. b. sympathetic nervous system. d. Sensory, Which neuron structure receives impulses from the preceding cell? Which neurons reside only within the CNS? a. anchor neurons to blood vessels. c. Cerebellum D) Ions always move from an area of higher concentration to an area of lower concentration, A second nerve impulse cannot be generated until ________. b. M3 This is an example of: Allow ions to move in and out of its cellular membrane. b. dorsal horn A) An inhibitory postsynaptic potential occurs if the inhibitory effect is greater than the excitatory, causing hyperpolarization of the membrane. Motor neurons transmit the nerve impulses from CNS to effectors (muscles and glands). A. neuronal fibers; axons B. axons; dendrites C. dendr. Neurons are responsible for transmitting signals throughout the body, a process that allows us to move and exist in the world around us. a. Schwann cells b. oligodendrocytes c. astroc, What kind of nerve cells are thought to be helpers for the neurons? Motorneurons release acetylcholine at: Neurons that lie between sensory neurons and motor neurons are called ________. D) found in the retina of the eye, Which of the following is an excitatory neurotransmitter secreted by motor neurons innervating skeletal muscle?
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