Chapter 111) Explain the basic functions of the nervous system2) Describe the relationships between the different divisions ofthe nervous system3) Identify the cell types and their functions of the nervoussystems4) Explain the difference between white and gray matter.5) Describe how action potentials are transmitted through thenervous system6) Distinguish between a chemical and electrical synapse7) Explain the function of neurotransmitters in a synapse8) Discuss how synapse function can be affected by differentexcitatory and inhibitory synaptic potentials.9) Explain how drugs function in relation to the nervous system

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Answered: Chapter 11 1) Explain the basic…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Thompson Medical Company manufactures and sells Aspercreme, a topical analgesic. Aspercreme is a pain reliever that contains no aspirin. Thompson’s advertisements strongly suggest that Aspercreme is related to aspirin, however, by claiming that it provides “the strong relief of aspirin right where you hurt.” Is Thompson’s advertisement for Aspercreme false and misleading? Explain.
134 Use the following information to answer the next question. Neuroactive drugs, such as the antidepressant fluoxetine, function by affecting the activity of neurotransmitters in the brain. After the neurotransmitter serotonin has crossed the synapse and attached to the postsynaptic neuron, it is normally taken back up by vesicles in the presynaptic neuron. Fluoxetine inhibits this reuptake process, causing serotonin to remain in the synapse for longer than usual. W- Nerve impulse A Synapse Z 10) Which process labelled in the diagram above is inhibited by the action of fluoxetine? a) Process W b) Process X c) Process Y d) Process Z
A mutation causes a switch in dopamine receptor G-protein-coupled mechanisms in the basal ganglia, causing D1 and D2 receptors to swap their G-protein subunits. If these animals began showing Parkinson-like neuronal degeneration, what would be the resulting motor function? Question 1 options: A) Hyperkinetic B) No change C) Hypokinetic
Transmission of a nerve impulse across a gap between neurons is due to: a) Movement of a molecule, a chemical signal b) Movement of a positive charge, an electrical signal
1. If you block calcium channels on an axon, which will not occur? A) exocytosis of neurotransmitter B) repolarization phase of the action potential C) depolarization phase of the action potential D) hyperpolarization phase of the action potential E) graded potential
Which of the following is NOT a functional or structural change that occurs in the mesocorticolimbic dopamine system as a result of exposure to addictive drugs? A) Decreased baseline levels of dopamine activity, causing a decreased response to normal rewarding stimuli. B) Neural plasticity in response to drugs and drug-related stimuli decreases. C) Potentiation of synapses between glumate-releasing neurons and dopamine-releasing neurons in the VTA. D) Increased dendrite length and greater synaptic complexity in the nucleus accumbens and prefrontal lobes.
When light strikes our rods and cones, their sodium and calcium channels close and they release less glutamate. This causes the _____ cells in our retinas to release more neurotransmitters, which increases the firing rate of action potentials in the _____ cells. A) bipolar; ganglion B) complex; amacrine C) amacrine; complex
29
A)The following structure in the figure is the cell body of a post-ganglionic parasympathetic neurone: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O B) The following structure in the figure is the cell body of a pre-ganglionic sympathetic neurone: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O C) The following structure in the figure is the cell body of a general somatic efferent neurone: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O
5. How does nerve control differ from hormonal control? a) It is controlled by hormones b) He's faster. c) It is less specific. d) He is no longer loaned.

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