Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
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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Chapter 32 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 32 - ___ relay messages from the brain and .spinal cord...Ch. 32 - Prob. 1DAACh. 32 - Prob. 2DAACh. 32 - Prob. 3DAACh. 32 - Prob. 4DAACh. 32 - When a neuron is at rest, ______ a. it is at...Ch. 32 - Action potentials occur when ________ a. a neuron...Ch. 32 - True or false? Action potentials vary in their...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 - Dorsal root ganglia contain _______ of sensory...Ch. 32 - Prob. 11SQCh. 32 - Neurons are arrested in ________ of the cell...Ch. 32 - Prob. 13SQCh. 32 - Commands to move your right arm start in the...Ch. 32 - Match each item with its description. ___ gray...Ch. 32 - Prob. 1CTCh. 32 - In human newborns, especially premature ones, the...
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- All motor neurons release acetylcholine as a neurotransmitter except a. Postganglionic sympathetic neurons b. Somatic motor neurons c. Postganglionic parasympathetic neurons d. Specific cardiac and smooth muscle fibersarrow_forwardThe difference between the channels along the axon and the channels in the axon terminal is that? a) axon channels are voltage-gated sodium channels and axon terminal channels are voltage-gated calcium channels b) there is no difference c) axon channels are voltage-gated sodium channels and axon terminal channels are ligand- gated sodium channelsarrow_forwardWhere are neurotransmitter receptors located?(A) the nuclear membrane(B) the nodes of Ranvier(C) the postsynaptic membrane(D) synaptic vesicle membranesarrow_forward
- Activation of the sympathetic nervous system causes: a. increased blood flow into the skin b. a decreased heart rate c. an increased heart rate d. increased digestionarrow_forwardWhich neurotransmitter acts directly at the heart to increase heart rate? a. Norepinephrine b. Glutamate c. Acetylcholine d. GABAarrow_forwardBinding of neurotransmitter to the motor end plate leads to depolarization because the neurotransmitter: a) opens ligand-gated sodium channels. b) opens voltage-gated sodium channels. c) opens ligand-gated potassium channels. d) opens voltage-gated potassium channels.arrow_forward
- What is the electrical current that travels along neurons called? A. Neurotransmitter B. Action potential C. Contractions D. Electromagnetic wavearrow_forwardA neurotransmitter called "GABA" decreases the rate of action potential generation in neurons, but the effect can be overridden by excitatory neurotransmitters. Alcohol binds to the GABA receptor and has the same effect. Alcohol must Select one: a. Cause depolarization in neurons b. Cause hyperpolarization in neurons c. Block calcium entry at the axon terminus d. Block voltage-gated sodium channelsarrow_forwardWhy does the velocity of nerve impulse conduction along the nerve decrease when the nerve is stretched? Answer in terms of physics.arrow_forward
- Which part of the nervous system directly controls the digestive system? a. parasympathetic nervous system b. central nervous system c. spinal cord d. sensory-somatic nervous systemarrow_forwardWhat are the synaptic effects of glycine? a. It directly stimulates glutamate receptors. b. It facilitates the effects of glutamate. c. It directly stimulates acetylcholine receptors. d. It facilitates the effects of acetylcholine.arrow_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_forward
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