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E) nucleic acid. Learn about the neuron diagram, structure, and function. This disease causes gradual muscle stiffness . The nervous system most dominant while relaxing is the: (a) Cell body (b) Dendrites (c) Axon (d) All of the above are structural features of a neuron. a. medulla. A) efferent neuron The greater the density of spines along dendrites, the greater a neuron's: 5. (a) can maintain ionic balance of extracellular environment for neurons (b) can take glucose from blood to provide to neurons to make ATP (c) can take up neurotransmitter from a synapse (d) can phag, Which of the following are characteristics of myelinated axons? The substance released at axon terminals to propagate a nervous impulse is called a (n) ________. 36. B) They have extreme longevity.C) They are mitotic. Sensory receptors for touch (and pressure) respond to physical deformation of the receptors, resulting in the opening of specific mechanically gated ion channels. DI) They have an exceptionally high metabolic rate. c. Dendrites and soma What should the nurse explain to the patient regarding the role of serotonin and depression? a. Schwann cells b. oligodendrocytes c. astroc, What kind of nerve cells are thought to be helpers for the neurons? Neurons are responsible for transmitting signals throughout the body, a process that allows us to move and exist in the world around us. c. M2 2.Motor. described as having a word on the tip of your tongue, might have abnormal functioning in the: threshold Voltage-gated Na+ It stores energy reserves. b. control the chemical environment around neurons. ______________ are chemicals that promote the growth and development of neurons. c. Generate ATP. PDF Quiz 42, Understanding Motor SystemsSR - SNACC Similar to hormones, NO and CO promote longer-lasting effects by acting through intracellular second-messenger molecules. Which statement is true? formation. (a) Voltage-gated calcium channels open (b) Neurotransmitter binds to receptors (c) Action potential arrives at axon terminal (d) Neurotransmitter is removed from the synaptic cleft (e) Neurotransmitter released into synaptic cleft (f) Graded potential generated in postsynaptic cell, (c) Action potential arrives at axon terminal (a) Voltage-gated calcium channels open (e) Neurotransmitter released into synaptic cleft (b) Neurotransmitter binds to receptors (f) Graded potential generated in postsynaptic cell (d) Neurotransmitter is removed from the synaptic cleft. a. the person had neurons that did not form correctly during neural development. Which of the following is NOT a type of circuit? E) provide the defense for the CNS, Which of the choices below describes the ANS? Chapter 2: The Nervous System Flashcards | Quizlet 53. Discover and discuss the meaning of dendrites, axon, membrane polarization, membrane depolarization, and synapses. Neuroglia found in the CNS that bind axons and blood vessels to each other are called ________. (organalle) inside them, which is necessary to formation of mitotic. B) muscle contraction would occur. 52. D) Schwann cells, Schwann cells are functionally similar to ________. C) microglia nerve impulses) Need constant supply of nutrients and oxygen O All of the listed answer choices . b. cholinesterase. A second nerve impulse cannot be generated until ________. d. Sympathetic ganglion, 24. inability to divide by mitosis long cell life span (longevity) high aerobic metabolic rate ability to survive in anaerobic (Uithout oxygen) conditions. 5. Cedric S Raine. 43. Which of the following is not found in the limbic system? C) calcium b. Myelin prevents conduction of electricity from the axon hillock to the axon terminal. b. thalamus. The Macklis Lab is directed toward (1) understanding molecular controls and mechanisms over neuron sub-type development, diversity, axon guidance-circuit formation, and degeneration in the cerebral cortex, and (2) applying developmental controls toward brain and spinal cord regeneration and directed differentiation for in vitro therapeutic and mechanistic screening. c. the person had a past traumatic brain injury. An experimental drug that reduces the release of chemicals that inhibit axon growth may: d. Neurogenetics. 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. Which of the following is not characteristic of neurons? 2. d. Neurons. 30. A genetic mutation caused by an error in replicating or repairing a gene is called: 2003-2023 Chegg Inc. All rights reserved. Which cranial nerve receives sensory information from the heart, liver, and intestines? Give a valid explanation of why this could occur. A severe tremor in someone's hands could be caused by abnormal functioning in the: The function of neurons is to communicate information from one part of the body to other parts. All rights reserved. Briefly describe 6 effects this division has on the body. Why does injection of a local anesthetic into a finger still cause a loss of the sensation of touch from the finger? The cell bodies of the upper motor neurons are located in the spinal cord B. Which of the following is NOT characteristic of smooth muscle? a) axons b) dendrites c) Schwann cell d) cell body, Which of the following forms myelin in axons at PNS? Types of neurons: Characteristics and functions - Muy Salud b. d. prefrontal cortex. Which ion channel opens in response to a change in membrane potential and participates in the generation and conduction of action potentials? c. The cerebral cortex includes the cerebellum. Neurons that carry impulses the central nervous system to the muscles or glands are called neurons or motor neurons. D) generator potential. 61. b. auditory information. B) negatively charged and contains less sodium D) nitric oxide, Which of the following describes the excitatory postsynaptic potential? When excited electrically, the Hg atoms emit UV light, which excites the phosphor coating of the inner tube, which then emits visible (white) light. What structural classification describes this neuron? First, consider an object with an initial position x0x_0x0, an initial velocity v0v_0v0, and an acceleration aaa. CREB3L2-ATF4 heterodimerization defines a transcriptional hub of During depolarization, the inside of the neuron's membrane becomes less negative. C) oligodendrocytes Which of the following is not characteristic of neurons? C) opening of voltage-regulated channels a. inhibit the production of neurotrophins. Neurons may be classified according to several characteristics. to axon segment Axon segment C) innervation of glands What does myelin do for neurons? Which of the following is NOT a characteristic of epithelial tissue? A drug that reduces the activity of the amygdala would likely: Show the details. C) destroy ACh a brief period after its release by the axon endings copyright 2003-2023 Homework.Study.com. A) ependymal cells Local anesthetics block voltage-gated Na+ channels, but they do not block mechanically gated ion channels. It is important when reducing any model to first identify these characteristic behaviours. This results in increased speed of impulse propagation. Which of the following cells are not found in a connective tissue? b. glial cells. Treatment of pain with local anesthetics leads to an unfavorable decrease in general sensory acuity due to their indiscriminate block of both pain sensing . The axon hillock is located: Which of the following mechanisms is most significant in returning Na+ and K+ concentrations to resting ionic conditions (from point D to point E)? c. end terminus. b. Sensory afferent neurons possess long dendrites and short axons. 1.Sensory. c. cause the release of neurotrophins. Enkephalins and endorphins are peptides that act like morphine. Select the correct statement regarding synapses. The GBA gene encodes the lysosomal enzyme glucocerebrosidase (GCase). B) A nerve impulse occurs if the excitatory and inhibitory effects are equal. Contains lymphatic vessel. Is the information in this quote about afferent of efferent? d. medulla. c. pons The reduction - A Mathematical Model of CA1 Hippocampal Neurons with . The membrane potential of the postsynaptic membrane changes. C) diphasic impulses likely true? c. olfactory information. Answer: They are constantly dividing Explanation: Neurons are like different cells in the body on the grounds that: Neurons are encircled by a cell . The synapse more common in embryonic nervous tissue than in adults is the ________. C) An excitatory postsynaptic potential occurs if the excitatory effect is greater than the inhibitory effect but less than threshold. Characteristics Of Neurons. C) receptor a. Which nervous system subdivision is a chain of two motor neurons consisting of a preganglionic and a postganglionic neuron? 1. The point where a motor neuron meets a muscle fiber is called the: In each of the following sentences, circle the phrase following the subject. 13. 3. b. Somatics d. reduce cortical arousal. a. Amygdala Describe annual cleanupthat isfrequently present in these agreements. c. pons. Which of the following is not a special characteristic of neurons? c. Electrical impulses would be unable to travel down axons. Nervous system - The neuronal membrane | Britannica Solved Which of the following is NOT true about neuroglia - Chegg Motor neurons transmit the nerve impulses from CNS to effectors (muscles and glands). If an experimental drug produced physiological effects similar to nitric oxide, then a b. procedural memory. C ) brain and spinal cord. c. reduced oxygen delivery to cells. a. Axons b. Neurons c. Neuroglia d. Synapses e. Type A fibers, Which of the following parts of a neuron contain excitable membranes? A) They increase amplitude as they move away from the stimulus point. A. they produce neurotransmitters B. they lack neurotransmitter receptors C. they receive communication from other neurons D. they slow down the action potential. B. axon. Choose the correct order of these events below. d . Describe the types of neurons, their structure and their function. Begin by sketching the contour. Specifically, combination therapy (simultaneous use of customized sub-perception field and paresthesia-based SCS) versus monotherapy (paresthesia-based SCS) was evaluated. The former make connections from the spinal cord to the muscles. C) the impulse would spread bidirectionally the sympathetic division of the autonomic nervous system. d. increased protection of the brain. Hepatocytes and neurons express low baseline CB1R and CB2R, respectively, and their cell-type-specific functions are not well defined. 71. d. The cerebral cortex is found on the surface of the brain. Which nerve cells carry impulses from the brain to the muscles? A disorder that damaged oligodendrocytes would be expected to impede neurotransmission. B) the Na ions have been pumped back into the cell b. Which of the following is NOT characteristic of nervous tissue in the brain a. b. Microglial cells c. provide the defense for the CNS. Spiral ganglion neurons (SGNs) play a vital role in conveying complex information from hair cells to the brainstem (Shrestha et al., 2018).As the injury or degeneration of SGNs is particularly devastating to hearing function, thus the repair of SGNs is of great importance in hearing-related biomedical fields (Petitpre et al., 2018; Wei et al., 2021). d. represent a general decline of autonomic nervous system activity. b. motor fibers that conduct nerve impulses from CNS to skeletal muscles. What are the exact characteristics of neurons? - Quora b. sympathetic nervous system. d. support and brace neurons. D) found in the retina of the eye, Which of the following is an excitatory neurotransmitter secreted by motor neurons innervating skeletal muscle? Full article: A Novel Cerebroprotein Hydrolysate, CH1, Ameliorates 58. Which of the following is not a function of astrocytes? C) They increase amplitude as they move away from the stimulus point. B) amplify or enhance the effect of ACh Answer (1 of 3): So a neuron is a specialized cell in the brain with certain characteristics. Which nervous sytem is responsible for delivering voluntary motor signals from the CNS to What type of motor neuron stimulates skeletal muscle fibers to contract by the excitation contraction mechanism? In myelinated axons the voltage-regulated sodium channels are concentrated at the nodes of Ranvier. Which of the following is NOT characteristic of the sympathetic division of the autonomic nervous system? Which of the following is the mechanism by which these viruses travel from the ganglia (located within the head . d. RNA. Name two amino acid neurotransmitters, two catecholamines, and two peptides. In addition to diffusion, what are two other mechanisms that terminate neurotransmitter activity? A) They conduct impulses. c. Proteoglycans The comparison demonstrates that the suggested controller closely tracks the reference voltage than the . The person would have impaired decision making while the drug's effects were active. B) A nerve impulse occurs if the excitatory and inhibitory effects are equal. A neuron is formed when a receptor ends on another cell becomes active. b. Interneurons. 56. d. Cingulate cortex. Which of the following is NOT a characteristic of the parasympathetic division? D) absolute refractory period. d. astrocytes form and maintain the blood-brain barrier. 4. The pathogenesis of the sudden disruption of neurologic function is unknown; it probably involves dysregulation of the reticular activating system in . a. Pons Describe the structure of neurons 2. That part of the nervous system that is voluntary and conducts impulses from the CNS to the skeletal muscles is the ________ nervous system. The structure that meets the spinal cord in the hindbrain is the: Expert Answer. A) the myelin sheath Which does NOT describe nervous tissue? A) the impulse would move to the axon terminal only. a) axon b) axon hillock c) dendrites d) soma, Which of the following is not a structural feature of a neuron? Efferent neurons are ___ neurons carrying impulses to the muscles. d. spines along dendrites. Saltatory conduction is made possible by ________. A) resting period B) They have extreme longevity. What type of neuron connects sensory and motor neurons in neural pathways? Growing numbers of sodium channels appear spontaneously in the demyelinated fibers so that conduction resumes, even if slower. All of the following describe the functions of astrocytes except: A novel robust adaptive sliding mode control using stochastic gradient They are the fundamental units that send and receive signals which allow us to move our muscles, feel the external world, think, form memories and much more. a. norepinephrine. a. Functional genomics C) negatively charged and contains more sodium c. nucleus accumbens. b. increasing glial scarring. A) nuclei O They conduct impulses. Many drugs that produce highly enjoyable effects likely do so by affecting the: 44. a. medulla. In this study we evaluated if motor and sensory neurites have a substrate preference for laminin and . D) They are short-lived. b. cerebellum. The autonomic nervous has control centers in the: Different types of neurons include sensory, motor, and interneurons, as well as structurally-based neurons, which include unipolar, multipolar, bipolar, and pseudo-unipolar neurons. C) are crucial in the production of neurotransmitters Conduct chemo-electrical impulses. d) There, In order for skeletal muscle cells to contract, they must be excited by motor neurons. D) Ions always move from an area of higher concentration to an area of lower concentration, A second nerve impulse cannot be generated until ________. c. in the synapse. C) depolarization Select the correct statement regarding synapses. Diminished release of acetylcholine from preganglionic sympathetic neurons would: The pons is activated when someone startles. C) sensory neurons that convey information from somatic receptors in the head, body wall, and limbs and from receptors from the special senses of vision, hearing, taste, and smell to the CNS C. Myelin traps sodium ions in the axon, What does myelin do for neurons? d. Extrapyramidal System. b. Broca's Aphasia. d. the structure is anterior to the area. Then, underline the verb in parentheses that agrees with the subject. Generally, these traits are not determined by just one gene, but instead by the cumulative effect . c. It is avascular. 12. Which of the following is not a characteristic of neurons? d. pituitary gland. Both responses are examples of graded potentials. d. a transcription factor. Specialized cells in the nervous system that control behavior, senses, and movement are. Diminished cerebral blood flow increases oxygen to neurons. Neurons that lie between sensory neurons and motor neurons are called ________. The parasympathetic division includes the pelvic nerves. An artificial bridge circuit approach between two biological neurons Which of the following is not a structural feature of a neuron? Both excitatory and inhibitory potentials impinge on neurons. a. hippocampus D) gamma aminobutyric acid, Which of the following describes the nervous system integrative function? Solved Which of the following is not a characteristic of | Chegg.com The all-or-none phenomenon as applied to nerve conduction states that the whole nerve cell must be stimulated for conduction to take place. Which of the following is the study of mechanisms of gene expression not involving Which of the following is not true of graded potentials? 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. 63. b. Microglial cells e. neurons that innervate smooth muscle are under involuntary control. Which of the following is NOT a characteristic of neurons? b. cingulate cortex. b. Somatic Nervous System d. motor neuron. Which of the following is not characteristic of neurons. (a) microglia (b) oligodendrocytes (c) ependymal cells (d) astrocytes. The all-or-none phenomenon as applied to nerve conduction states that the whole nerve cell must be stimulated for conduction to take place. D) the impulse would move to the axon terminal only, and the muscle contraction would occur, Which of the following neurotransmitters inhibits pain and is mimicked by morphine, heroin, and methadone? Which of the following is not true concerning the structural classification of neurons? C) frequency of action potentials d. the person has a history of drug abuse. Neuroglia that control the chemical environment around neurons by buffering potassium and recapturing neurotransmitters are ________. b. cerebellum. 3. Extrapyramidal side effects produced by antipsychotic drugs are similar to the symptoms of: Which component has a role in the postsynaptic cell during synaptic activity? Growth of spiral ganglion neurons induced by graphene oxide/oxidized analyzes sensory information, stores information, makes decisions. d. cingulate cortex. C) association neuron (b) Ordinary tungsten incandescent lightbulbs used in households are filled with argon gas at about 0.5 atm to retard the sublimation of the tungsten filament. Which of the following correctly describes a graded potential? 41. Experts are tested by Chegg as specialists in their subject area. A. b. ventricles. d. Hypothalamus, 37. D) biogenic amine, A neuron that has as its primary function the job of connecting other neurons is called a(n) ________. _____________ is a process for responding to brain injury. Its structure is multipolar. Myelination of the nerve fibers in the central nervous system is the job of the oligodendrocyte. Which of the following conducts impulses to an effector? d. Polymorphism, 50. c. sleepiness. a. All of the following describe functions for cerebrospinal fluid except: a. A. thow ion selectivity C. are gated A. destroy ACh a brief period after its release by the axon endings. They secrete acetylcholine. Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system (CNS) coined by inflammation and neurodegeneration. When a sensory neuron is excited by some form of energy, the resulting graded potential is called a(n) ________. b. c. medulla A) postsynaptic potential d. They are the same as any other cells. D. They have an exceptionally high metabolic rate., These cells in the CNS have cilia that move in order to circulate cerebrospinal fluid ________. 38. The cerebellum is located in the: 2 introduce new . Combination therapy with simultaneous delivery of spinal cord Which of the following describes the ANS? a. efferent neuron b. afferent neuron c. association neuron d. glial cell, Which of the following is not characteristic of neurons? Identify the cell type below that assists the function of neurons and has a supportive role within the nervous system?