C) neurotransmitter 11. c. gene duplication. They have long fibers from CNS to ganglion. Neuroglia perform supportive functions in the brain. The interior of a neuron is composed of cytoplasm and a gel that is called. Stimulation of initial axon segment Characteristics of the Neuron - Basic Neurochemistry - NCBI Bookshelf Oligodendrocytes form and maintain the blood-brain barrier. Which of the following is NOT a characteristic of neurons? a. increase the activity of postganglionic sympathetic neurons. c) Neurons are the most abundant type of cell in nervous tissue. The autonomic has two divisions: the sympathetic and parasympathetic. b. dorsal horn b. What do neurons synapse with? Which type of neurons are used to convey the special senses of sight? True or False, The overlapping functions of the nervous system are sensory input, integration, and motor output. Which neurons reside only within the CNS? A) Group C fibers are not capable of saltatory conduction. Are most pedagogues more interested in automation or orthography? _____________ is a process for responding to brain injury. 12. b. Neurotransmitters Transcription factors increase or decrease gene transcription. D) stimulate the production of acetylcholine, Which of the following is not a function of the autonomic nervous system? B) microglia Tell why you think so. c. the structure is further out to the side of the brain. . D) spinal cord and spinal nerves, The substance released at axon terminals to propagate a nervous impulse is called a(n) ________. just need the answer 21.Characteristics that vary on a a. postganglionic terminals. ANSWER : The neurons are included in the somatic body cells but are. a. neuromuscular junction. The concentration of __ is higher outside than inside the cell. An anesthetic protocol allowing electrophysiological singleunit recordings from inhibitory, presumably GABAergic PC interneurons in vivo is developed and may be useful for evaluation of PC neurons in kindled rats. b. thalamus. The characteristics that vary on a continuum among people, such as height, skin color, or intelligence, are most likely determined by polygenic inheritance. 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.". b. cholinesterase. innervation of glands. The nervous system most dominant while relaxing is the: What are the advantages and disadvantages of Europe's communications systems? If a motor neuron in the body were stimulated by an electrode placed about midpoint along the length of the axon ________. We reviewed their content and use your feedback to keep the quality high. C. They are mitotic. Which of the following will occur when an excitatory postsynaptic potential (EPSP) is being generated on the dendritic membrane? 2 introduce new . d. cerebral blood vessels. An impulse from one nerve cell is communicated to another nerve cell via the ________. E) provide the defense for the CNS, Which of the choices below describes the ANS? B. axon. d. hypothalamus. The cell bodies of the upper motor neurons are located in the spinal cord B. 41. 74. 51. c. Astrocytes 100% (3 ratings) Which of the following is NOT a characteristic of neurons? Both responses are examples of graded potentials. A) motor neurons b. Reactive astrocytes B) provide the defense for the CNS c. Dendrites and soma 10 Characteristics Of Neurons (Nerve Cells) and Nervous System - 8SA.NET Which of the following types of glial cells monitors the health of neurons, and can transform into a special type of macrophage to protect endangered neurons? a. Oligodendrocytes Discovering that someone has glial scars means suggests that: d. medulla. What does the central nervous system use to determine the strength of a stimulus? 56. Name the following: Nervous tissue cells that regulate the chemical environment of neurons. having a low appetite. a. temporal lobe. b. Broca's Aphasia. D. axon hillock. Question. d. prefrontal cortex. D) potassium, Nerve cell adhesion molecules (N-CAMs) ________. Answer: Option D is correct Explanation: Neurons generally do not e. Which cell causes endothelial cells to fit closely together? Which of the following is NOT characteristic of nervous tissue in the a. Pupil dilation Inflammatory Cytokines Associated with Multiple Sclerosis Directly B) analyzes sensory information, stores information, makes decisions A chemical messenger that does not directly cause ESPSs or IPSPs but does affect the strength of synaptic transmission is a ________. c. reduced oxygen delivery to cells. Give a valid explanation of why this could occur. b. sympathetic nervous system. These neurons are inhibitory neurons, meaning they release neurotransmitters that keep other neurons from firing. c. afferent neuron. Which of the following is NOT a characteristic of epithelial tissue? Neurons are a specific type of nervous system cell that is able to generate signals and transmit them to other neurons or target end-cells. DI) They have an exceptionally high metabolic rate. Treatment of pain with local anesthetics leads to an unfavorable decrease in general sensory acuity due to their indiscriminate block of both pain sensing . A) the myelin sheath The generation of an action potential in a neuron requires the presence what type of membrane channels? (organalle) inside them, which is necessary to formation of mitotic. A) the impulse would move to the axon terminal only d. None of these are correct. A) the membrane potential has been reestablished Which of the following are functions of the CNS? Harvard University Laboratory Technician Job in Cambridge, MA | Glassdoor 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. Damage to the ________________ could cause changes to one's motivation to eat, such as Which of the following is not true of graded potentials? Estimate the number of moles of Ar in a typical lightbulb. c. Motor efferent neurons possess long dendrites and short axons. Response characteristics of subthalamic neurons to the stimulation of C. Myelin traps sodium ions in the ax. The term central nervous system refers to the ________. Choose the correct order of these events below. C. Skeletal muscles are responsible for the pumping action of the heart. When information is delivered within the CNS simultaneously by different parts of the neural pathway, the process is called ________ processing. a. increase the activity of reactive astrocytes. b) Myelin prevents conduction of electricity from the axon hillock to the axon terminal. C. Myelin traps sodium ions in the axon, What does myelin do for neurons? Which of the following mechanisms is most significant in returning Na+ and K+ concentrations to resting ionic conditions (from point D to point E)? Many drugs that produce highly enjoyable effects likely do so by affecting the: alternations to DNA sequences? Which of the following is not a function of the autonomic nervous system? a. Begin by sketching the contour. Expert Answer. d. M1. IJMS | Free Full-Text | Low Basal CB2R in Dopamine Neurons and - MDPI Neuroglia that control the chemical environment around neurons by buffering potassium and recapturing neurotransmitters are ________. The person may have an increase in heart rate. 45. a. 3. c. end terminus. A scientist who wanted to determine how inflammation in the brain was occurring in a B) anchor neurons to blood vessels Characteristics of the Neuron. b. Neurons would be unable to form the blood-brain barrier. Which of the following statements is incorrect? b. efferent neuron. Which of the following are afferent neurons, relative to the central nervous system? What are the different classes of neurons and their functions? Which of the following is NOT characteristic of the sympathetic division of the autonomic nervous system? 1. b. a. Activation of preganglionic sympathetic neurons a. medulla. a. extrapyramidal motor system. In the presence of invading microbes, microglial cells become macrophages to phagocytize the microbes and neuronal debris. 59. b. medulla. A postsynaptic potential is a graded potential that is the result of a neurotransmitter released into the synapse between two neurons. D) innervation of skeletal muscle, Collections of nerve cell bodies outside the central nervous system are called ________. Relative to the prefrontal cortex, the neuron would be called a(n): The latter from the brain to the spinal cord. 32. b. hindbrain. Some neuroglia remove debris and foreign material from the nervous system. Functions. Study with Quizlet and memorize flashcards containing terms like Which of the following is not characteristic of neurons? c. neurons. a. alertness. What type of motor neuron stimulates skeletal muscle fibers to contract by the excitation contraction mechanism? B) They have extreme longevity. Central Nervous System Which of the following is the study of mechanisms of gene expression not involving capacity of divide via mitosis due to absence of centrosomes. your answer. PDF Quiz 42, Understanding Motor SystemsSR - SNACC An inhibitory intracellular matrix releases neurotrophins to impair axon re-growth. A) cell body The sheath of Schwann is also called the ________. 40. are crucial for the development of neural connections. d . Strong stimuli cause the amplitude of action potentials generated to increase. Tight junctions along blood vessels in the brain are formed by: During depolarization, the inside of the neuron's membrane becomes less negative. c. It is avascular. B) norepinephrine c. preganglionic terminals. B) amplitude of various sizes Define neurotransmitter. How are women stereotyped by men in Lamb to the Slaughter by Roald Dahl? d. Activation of postganglionic parasympathetic neurons, 65. In this study we evaluated if motor and sensory neurites have a substrate preference for laminin and . C) innervation of glands Neurotransmitter is released from presynaptic neurons through what mechanism? a) ion b) cholinesterase c) neurotransmitter d) biogenic amine. True or False, The autonomic nervous system is under voluntary control; whereas, the somatic nervous system is involuntary. a. it is not an increase in membrane potential b. causes the voltage of the internal membrane towards zero c. inside the membrane becomes more positive than resting potential d. lowers the probability of producing an action potential e. none of the above. 72. Neurons are located both in the CNS and on the periphery. a. the hippocampus. Describe the structure of neurons 2. 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. a. synapses. I was doing so well." Events that occur during synaptic activity are listed here, but they are arranged in an incorrect order. Cells may have long extensions. In terms of function, scientists classify neurons into three broad types: sensory . When the neurons were damaged, the number of Nissl corpuscles decreased significantly . Which of the following is true about the movement of ions across excitable living membranes?
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