Ex2Spr09Key

Ex2Spr09Key - Examination II VPHY 3100 Elements of...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Examination II VPHY 3100 Elements of Physiology March 2nd, 2009 1:25 - 2:15 p.m. Multiple Choice (2.5 points each) FOR EACH QUESTION, CHOOSE THE SINGLE BEST ANSWER. 1. The autonomic nervous system: A. is synonymous with the peripheral nervous system. B. is wholy contained within the peripheral nervous system. C. includes components that lie within the brain and spinal cord. Dincludes no ganglia. E. is comprised solely of nerves. 2. Efferent pathways of the somatic and sympathetic systems are similar in which of the following ways? A. They innervate the same target tissues. B. Nicotinic acetylcholine receptors are the post-synaptic cell surface receptors expressed on target tissues. C. They control heart rate and contractility. D. They have ganglia. E. The motor neurons that originate from the spinal cord are cholinergic. 3. The two divisions of the autonomic nervous system are similar in that: A. preganglionic fibers originate from the same regions of the brain and/or spinal cord. B. preganglionic fibers are cholinergic. C. they share common ganglia within the periphery. D. postganglionic neuronal cell bodies lie within nuclei of the central nervous system. E. some preganglionic fibers enter the periphery via the vagus nerves. 4. Which of the following is not a typical response caused by parasympathetic innervation? A. Increased heart rate. B. Increased activity of the gastrointestinal tract. C. Constriction of the bronchioles. D. Constriction of the pupils. E. Decreased strength of heart beat. 5. In terms of the sympathoadrenal response, epinephrine mediates more _____________ effects while norepinephrine mediates more _____________ effects. A. hormonal; neural. B. cell-surface; intracellular. C. immediate; long-term. D. central; peripheral. E. adrenergic; cholinergic. 6. Which of the following is a component of the parasympathetic division of the ANS? A. The splanchnic nerves. B. The terminal ganglia. C. The prevertebral (collateral) ganglia. D. The paravertebral ganglia. 1
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
E. All of the above. 7. Which of the following statements is false ? A. Preganglionic fibers of the ANS release acetylcholine from their nerve terminals. B. Most postganglionic fibers of the sympathetic division of the ANS release epinephrine or norepinephrine from their nerve terminals. C. Most postganglionic fibers of the parasympathetic division of the ANS release acetylcholine from their nerve terminals. D. Most target tissues innervated by the sympathetic division of the ANS express adrenergic receptors. E. Most target tissues innervated by the parasympathetic division of the ANS express nicotinic receptors. 8. ____-receptor activation causes vasoconstriction via increases in intracellular calcium within target cells. A.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 7

Ex2Spr09Key - Examination II VPHY 3100 Elements of...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online