An inhibitory intracellular matrix releases neurotrophins to impair axon re-growth. The importance of a stimulus is derived from the number of stimuli received from the same source. A substance that inhibits the activity of the cerebellum would be expected to: c. basal ganglia. Transcribed image text: Which of the following is not a characteristic of neurons? A) motor fibers that conduct nerve impulses from the CNS to smooth muscle, cardiac muscle, and glands What is the direct role of neurotransmitter at a chemical synapse? d. gyri. Which of the followings cells accounts for roughly half of the volume of the nervous system? a. sensory neuron b. interneuron c. motor neuron d. gland e. muscle. What is the long outgrowth of a neuron along which electrical impulses are transmitted? A) positively charged and contains less sodium Neurotransmitters are chemical signals used as a means of communication. a. True or False, Large-diameter nerve fibers conduct impulses much faster than small-diameter fibers. d. Cingulate cortex. What are the two(2) functional neuron types that are structurally multipolar neurons? A) They are short-lived. C) Sodium gates in the membrane can open in response to electrical potential changes. The midbrain contains the: C) acetylcholine Estimate the mass of Hg vapor present in the type of long, thin fluorescent tubes used in offices. b. cingulate cortex. Which of the following is NOT characteristic of nervous tissue in the brain a. What two physiological characteristics are highly developed in the neurons? Neurons: Stimulation of initial axon segment What are the possible responses? 2. c. The patient has a low level of transcription factors. In the case of nerve . d. gray matter. She asks the nurse,"Why did this have to happen to me again? D) They are short-lived. d. represent a general decline of autonomic nervous system activity. 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. taking the substance. A thirestold potential must be excecded or reached. 40. 12. a. astrocytes play a role in neurotransmission. The majority of these axonal knobs are shown to be "firing." Characteristics Of Neurons. Use Equation v=v0+atv=v_0+a tv=v0+at to show that the time corresponding to the velocity found in part (a) is t=v0v022ax0at=\frac{-v_0 \pm \sqrt{v_0^2-2 a x_0}}{a}t=av0v022ax0. What is the role of calcium in synaptic activity? Which of the following mechanisms is most significant in returning Na+ and K+ concentrations to resting ionic conditions (from point D to point E)? If a physician identified her patient as a low drug metabolizer, which of the following is most depolarized to We used embryonic stem cell-derived (H9) human neuronal stem cells . Which of the following is NOT a characteristic of the parasympathetic division? c. Activation of preganglionic parasympathetic neurons A neuron is a cell that communicates with the brain. Which of the following is not true of graded potentials? The cerebral cortex is located in the forebrain. C) serotonin David N. Shier, Jackie L. Butler, Ricki Lewis, Anatomy and Physiology: An Integrative Approach, Michael McKinley, Theresa Bidle, Valerie O'Loughlin, LELCB 1B (28/1) - Collocation review (gap fil. b. on the soma. Citation 17 - Citation 21 However, the effect of CH on axonal plasticity within the white matter following ischemic stroke is not known in detail. D) generator potential. 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. Specialized cells in the nervous system that control behavior, senses, and movement are called: a. neurons. True or False, A stimulus traveling toward a synapse appears to open calcium ion channels at the presynaptic end, which in turn promotes fusion of synaptic vesicles to the axonal membrane. a. While taking notes in class, a student had keep in mind what the professor had just stated in The patient has a polymorphism that slow metabolism of a drug. 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. Unipolar neurons have axons structurally divided into peripheral and central processes, Neurons in the CNS are organized into functional groups, If bacteria invaded the CNS tissue, microglia would migrate to the area to engulf and destroy them, The nodes of Ranvier are found only on myelinated, peripheral neuron processes. a. synapses. b. transcription factors. C) frequency of action potentials Which of the following would be most likely to increase heart rate? C ) brain and spinal cord. Its cell body is in an autonomic ganglion outside the CNS. A stimulus traveling toward a synapse appears to open calcium ion channels at the presynaptic end, which in turn promotes fusion of synaptic vesicles to the axonal membrane. A neuron was found to originate in the hippocampus and terminate in the prefrontal cortex. b. hypothalamus. If a neuroscientist stated that a brain structure had efferent neurons, what can be concluded? d. The person may have motor tremor. ce3z/(4zi)3dz. B) The release of neurotransmitter molecules gives cells the property of being electrically coupled. 61. d. reticular activating system. b. Gliosis A. d. frontal lobe. d. hypothalamus. c) Myelin traps sodium ions on the axon an. b. Somatic Nervous System E) provide the defense for the CNS, Which of the choices below describes the ANS? lowers the probability of producing an action potential. 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. B) They have extreme longevity. Relative to the central nervous system, motor neurons are referred to as afferent neurons. C) opening of voltage-regulated channels A drug that increases appetite would likely affect: A) resting period These K+ ions decrease the positive ion concentration momentarily below the normal -70mV and thus hyperpolarize the cell. B) endorphin b. Glossopharyngeal nerve 33. Neurotransmitter is released from presynaptic neurons through what mechanism? All rights reserved. Immediately after an action potential has peaked, which cellular gates open? d. parasympathetic nervous system. Preganglionic neurons tend to be long, with the ganglion located in or near the effector target tissue (s). When information is delivered within the CNS simultaneously by different parts of the neural pathway, the process is called ________ processing. An inhibitory postsynaptic potential (IPSP) is associated with ________. B) They have extreme longevity.C) They are mitotic. Transcription factors increase or decrease gene transcription. Which of the following is true about the movement of ions across excitable living membranes? 18. Show the details. The parts of neurons that receive information from other neurons are called: 4. Identify the following: Acetylcholinesterase would be found in the synapse between neurons for this branch of the ANS and the effector cells. ________ is a disease that gradually destroys the myelin sheaths of neurons in the CNS, particularly in young adults. acetylcholine The interior of a neuron is composed of cytoplasm and a gel that is called. 15. d. cingulate cortex. Answer: Option D is correct Explanation: Neurons generally do not e . Both responses are examples of graded potentials. c. sleepiness. Then, underline the verb in parentheses that agrees with the subject. The part of a neuron that sends neurotransmitters into a synapse is called a(n): 6. your answer. a) axons b) dendrites c) Schwann cell d) cell body, Which of the following forms myelin in axons at PNS? c. Hippocampus Which pattern of neural processing is important for higher level mental processing such as problem solving? 39. Which division of your nervous system is generating this response? The small layer of tissue surrounding the cerebral aqueduct in the brain is called: d. hippocampus. Which of the following will occur when an excitatory postsynaptic potential (EPSP) is being generated on the dendritic membrane? a. a. Alzheimer's disease. It impacts your spinal cord and the nerves that transmit and receive messages between your brain and the rest of your body. Many drugs that produce highly enjoyable effects likely do so by affecting the: Reflexes are rapid, automatic responses to stimuli. c. pons. 8. C. They are mitotic. 8. a. on dendrites. Experts are tested by Chegg as specialists in their subject area. b. that a person is genetically female. 29. Large-diameter nerve fibers conduct impulses much faster than small-diameter fibers. 30. A) cholinesterase B) innervation of cardiac muscle Which of the following is NOT a function or characteristic of neurons? However, the resting membrane potential in three types of neurons was not significantly different in the present study; therefore the 5-HT . b. expect to find increased blood flow. The person may have an increase in heart rate. b. control the chemical environment around neurons. The axon c. The dendrites d. The Nissl bodies. Myelination of the nerve fibers in the central nervous system is the job of the oligodendrocyte. The principles outlined above can be applied to the neuron and its ionic contents.. nerve impulses) Need constant supply of nutrients and oxygen O All of the listed answer choices . What are the basic divisions of the peripheral nervous system? c. sensory and motor neurons that su. Which of the following plays an integral role in saltatory conduction? Our experts can answer your tough homework and study questions. B) A nerve impulse occurs if the excitatory and inhibitory effects are equal. 13. What are the neuron functions for the peripheral nervous system? 1.Introduction. which ofthe following is correct? A neuron consists of a nucleus, a region of tissue that contains the cell body. Indicate the number of orbitals in the 6p sublevel. d. Sympathetic ganglion, 24. c. nucleus accumbens. likely acting upon? b. M3 In doing so, mention: a) the names of the neurons involved, b) where the neurons synapse with each other (2 possible ganglia), c) what Nt is released from each of the neurons. D) size of action potentials, Bipolar neurons are commonly ________. c. epigenetic stimulus. Which neurons reside only within the CNS? How are women stereotyped by men in Lamb to the Slaughter by Roald Dahl? a. interneuron. C) voltage stimulus to initiate 67. C) Group B fibers are highly myelinated and have the highest conduction velocities. O They conduct impulses. When activated, shortens C. Found in the brain and spinal cord. 56. New three-photon miniature microscopes open the study of neuronal networks to those deep in the brains of behaving animals. The characteristics that vary on a continuum among people, such as height, skin color, or intelligence, are most likely determined by polygenic inheritance. 66. Which of the following statements is incorrect? _____________ is a process for responding to brain injury. 20. Which cells in the brain remove normal cellular waste? 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? 1. A) postsynaptic potential A. Collections of nerve cell bodies outside the central nervous system are called ________. They are electrically excitable cells which generate action potentials. Which ion channel opens in response to a change in membrane potential and participates in the generation and conduction of action potentials? 100% (3 ratings) Which of the following is NOT a characteristic of neurons? Begin by sketching the contour. Which of the following is not true of graded potentials? 31. 51. inability to divide by mitosis long cell life span (longevity) high aerobic metabolic rate ability to survive in anaerobic (Uithout oxygen) conditions. True or False, If bacteria invaded the CNS tissue, microglia would migrate to the area to engulf and destroy them. c. hippocampus. C) negatively charged and contains more sodium True or False, The nodes of Ranvier are found only on myelinated, peripheral neuron processes. a. reference memory. b. the medulla. Which of the following is correct? A) cell body 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). That part of the nervous system that is voluntary and conducts impulses from the CNS to the skeletal muscles is the ________ nervous system. A toxin that destroyed the presynaptic terminal on an axon would likely: 7. a. extrapyramidal motor system. The correct answer is (d) All of these are characteristic of neurons. The period after an initial stimulus when a neuron is not sensitive to another stimulus is the ________. a. Astrocytes This is an example of: d. improve recovery from traumatic brain injury. A. astrocytes B. ependymal cells C. microglia D. Schwann cells, Which of the following options is correct? 63. The hills on the surface of the brain are referred to as: d. The person would have dulled senses for some period of time after taking the substance. c. in the synapse. Neurons synapse with: a. other neurons b. muscles c. glands d. all of these. Which of the following is not characteristic of neurons? a. Schwann cells b. oligodendrocytes c. astroc, What kind of nerve cells are thought to be helpers for the neurons? d. motor neuron. d. prefrontal cortex. 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 ________. What is an example of a presynaptic cell? Which of the following is NOT a characteristic of epithelial tissue? The presence of at least one Y chromosome indicates: However, the neuron in question does not transmit an impulse. A) peripheral and spinal nerves B) brain, spinal cord, and peripheral nerves C) brain and spinal cord D) spinal cord and spinal nerves. the sympathetic division of the autonomic nervous system. D) positively charged and contains more sodium. Responding to brain injury is an important function of astrocytes. The interior is ________. Saltatory propagation occurs in _________ axons, in which action potentials _________. A) short distance hyperpolarization stem c.) muscles d.) osteocytes. c. a Mendelian disease. a. reduced cerebrospinal fluid. a. motor fibers that conduct nerve impulses from the CNS to smooth muscle, cardiac muscle, and glands. What is a credit line? The membrane potential of the postsynaptic membrane changes. True or False, The action potential is caused by permeability changes in the plasma membrane. a. Epigenetic markers Treatment of pain with local anesthetics leads to an unfavorable decrease in general sensory acuity due to their indiscriminate block of both pain sensing . Upper motor neurons are classified according to the pathways they travel in C. The Babinski response is not characteristic of paralysis from UMN lesions c. striations present are due to the orderly arrangement of actin and myosin. The synapse more common in embryonic nervous tissue than in adults is the ________. c. gamma aminobutyric. 15. [25] designed a voltage output feedback controller, which uses the neural network feed-forward (NNFF) with the harmony search algorithm (HSA) to control the PEMFC output voltage. Generally, these traits are not determined by just one gene, but instead by the cumulative effect . Fill in the blank. c. The cerebral cortex includes the cerebellum. d. pituitary gland. (b) They have extreme longevity. 22. Which neurons belong to the efferent pathway? Multiple sclerosis (MS) is a disease in which the myelin sheaths are destroyed. The substance released at axon terminals to propagate a nervous impulse is called a (n) ________. b. inhibit axon growth. 3. a. For skeletal muscle cells to contract, they must be excited by motor neurons. b. What are the different types of motor neurons? a. c. Generate ATP. Diminished release of acetylcholine from preganglionic sympathetic neurons would: b) Neurological cells protect and support neurons. Hint. Which of the following will occur when an excitatory postsynaptic potential (EPSP) is being generated on the dendritic membrane? a. midbrain. Integrate. 58. D) spinal cord and spinal nerves, The substance released at axon terminals to propagate a nervous impulse is called a(n) ________. Which of the following is NOT characteristic of the sympathetic division of the autonomic nervous system? They secrete acetylcholine. Imagine a neuron that has several hundred axonal knobs impinging on it. b. Microglial cells b. the blood-brain barrier conditions in Russian society that led to the Revolution of 1917. B. axon. A) ependymal cells b. oligodendrocytes. 62. Sensory Neurons Motor Neurons Inter-Neurons d. inferior colliculus. a. Functional genomics d. astrocytes. b. dorsal horn b. sympathetic nervous system. 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. 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. A) innervation of smooth muscle of the digestive tract B) innervation of cardiac muscle C) innervation of skeletal muscle D . c) Neurons are the most abundant type of cell in nervous tissue. 2. Neurons in the CNS are organized into functional groups. c. they form an insulating material around axons. b. d. The blood-brain barrier, 17. A substance that directly activates gene transcription is likely acting as a: a. the hippocampus. A neuron is formed when a receptor ends on another cell becomes active. Specifically, combination therapy (simultaneous use of customized sub-perception field and paresthesia-based SCS) versus monotherapy (paresthesia-based SCS) was evaluated. d. Inhibited salvation. adjacent axon segment. A) support and brace neurons D) ATP and other purines Oligodendrocytes form and maintain the blood-brain barrier. Contains cells with macrophage activity c. Exhibits regenerative capacities d. Contains lymphatic vessel. b. ANS stimulation of involuntary effectors is always excitatory. Which cell causes endothelial cells to fit closely together? Which of the following is NOT a characteristic of neurons?
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