Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Textbook Question
Chapter 32, Problem 6SQ
What chemicals is released by the axon terminals of a motor neuron at a neuromuscular junction?
- a. ACh
- b. serotonin
- c. dopamine
- d. epinephrine
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What chemical is released by the axon terminals of amotor neuron at a neuromuscular junction?a. ACh c. dopamineb. serotonin d. epinephrine
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Chapter 32 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 32 - Prob. 1DAACh. 32 - Prob. 2DAACh. 32 - Prob. 3DAACh. 32 - Prob. 4DAACh. 32 - ___ relay messages from the brain and .spinal cord...Ch. 32 - When a neuron is at rest, ________ . a. it is at...Ch. 32 - An action potential begins when ___ . a. a neuron...Ch. 32 - Most human axons have a myelin sheath that ___ ....Ch. 32 - Neurotransmitters are released. by ___ . a. axon...Ch. 32 - What chemicals is released by the axon terminals...
Ch. 32 - Which neurotransmitter is important in...Ch. 32 - Skeletal muscles are controlled by ______ . a....Ch. 32 - When you sit quietly on the couch and read, output...Ch. 32 - In the central nervous system, all synapses are in...Ch. 32 - The brain and spinal cord develop from the...Ch. 32 - An injury ___ in the spinal cord can lead to...Ch. 32 - ___ deep in the brain plays a role in emotion. a....Ch. 32 - Commands to move your right arm start in the...Ch. 32 - Prob. 15SQCh. 32 - Prob. 1CTCh. 32 - Most tumors that originate in the brain are not...Ch. 32 - Hansen's disease, also known as leprosy, arises...
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- A nurse uses a whirlpool to relax a patient following intense physical therapy to restore movement in her legs. What is a potent pain-blocking neuromodulator, released through relaxation techniques? a. Prostaglandins b. Substance P c. Endorphins d. Serotoninarrow_forwardDopamine is an important neurotransmitter. Which disease or disorder results when the neurons in the brain that produce dopamine die? A. Multiple sclerosis B. Lou Gehrig's disease (amyotrophic lateral sclerosis) C. Parkinson's disease D. Seizure disorderarrow_forwardWhat are the neurotransmitters that bind to ionotropic channels and allow for cation influx? Select all that apply. Group of answer choices A. glutamate B. GABA C. dopamine D. acetylcholinearrow_forward
- Which of these effectors is NOT directly controlled by the autonomic nervous system? a.cardiac muscle b.smooth muscle c.skeletal muscle d.most glandsarrow_forwardWhen the parasympathetic system is stimulated, what neurotransmitter is released? a. Acetylcholine b. Norepinephrine c. Epinephrine d. Dopaminearrow_forwardWhich of the following is associated with pain relief? a. acetylcholine c. serotonin b. glutamate d. endorphinsarrow_forward
- What is a common neurotransmitter? A. Acetylcholine B. GABA C. Serotonin D. All of the abovearrow_forwardThe release of a neurotransmitter from a terminal button produces an inhibitory postsynaptic potential (IPSP) in the postsynaptic neuron. What is the most likely mechanism by which this occurs? A. the neurotransmitter opens chemically activated chloride channels B. the neurotransmitter activates a second messenger which then opens calcium channels C. the neurotransmitter is glutamate D. the neurotransmitter acts on a G-protein linked receptor which opens sodium channelsarrow_forwardWhat is the term used to refer to an area of the body that sends cutaneous sensory information to a single spinal cord segment? a. Microtome b. Somatosegment c. Dermatome d. Spinal region Which chemical is synthesized from the amino acid tryptophan? a. serotonin b. endorphin c. dopamine d. nitric oxidearrow_forward
- How are charges distributed in the nerve cell membrane when it is at rest? Select one: a. Inner side negative, outer side positive b. Inner side in part positive and in part negative c. Outer side in part positive and in part negative d. Inner side positive, outer side negativearrow_forwardWhat do multiple sclerosis and ALS (amyotropic lateral sclerosis) have in common?a. They both are more common in young men than in young women.b. They both impair the initiation of action potentials.c. They both damage the myelin sheath, disrupting action potential transmission.d. They both impair nerve function in the peripheral nervous systemarrow_forwardIn an experiment you place a neuron and its synaptic contacts into a medium containing no calcium ions. You stimulate the neuron causing an action potential to propagate down the axon into the axon terminal of the neuron. 3.) What is the most likely result of this experimental manipulation? A. Prolong the refractory period of the action potential B. Decrease the time required to move sodium ions out of the axon terminal C. Prevent neurotransmitter from binding to receptors on postsynaptic cells D. Enhance the voltage changes associated with the action potential E. Prevent release of neurotransmitter into the synapsearrow_forward
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