FREE AND STUDY GAMES ABOUT ANATOMY CH. 15 EXAM

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FREE AND STUDY GAMES ABOUT ANATOMY CH. 15 EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -59 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Chemical in tobacco plants.

Answer:

nicotinic receptors Question 2: Visceral effectors innervated by postganglionic axons from both the symathetic and

parasympathetic division of the ANS have:

Answer:

dual innervation Question 3: The parasympathetic division of the ANS helps maintain __, a constant internal environment.

Answer:

homeostasis

Question 4: The postcentral gyrus is in the __ lobe and is __.

Answer:

parietal, sensory

Question 5: The location of the preganglionic neurons in the parasympathetic division of the autonomic nervous system allow it to be also known as the __ division.

Answer:

craniosacral Question 6: Which gland receives parasympathetic innervation from the glossopharyngeal nerve (CN IX)?

Answer:

parotid salivary gland Question 7: Which ANS effectors undergoes opposing effects without dual innervation?

Answer:

blood vessels Question 8: During an emergency or crisis situation, the SNS can trigger __ __ in which many effectors respond together.

Answer:

mass activation Question 9: Axons that release ACh are called:

Answer:

cholinergic

Question 10: What is the basic function of the ANS?

Answer:

maintain homeostasis Question 11: In blood vessels innervated by only sympathetic axons, increased sympathetic stimulation causes the vessels to __ while decreased sympathetic stimulation causes the vessels to __.

Answer:

constrict, dilate

Question 12: Anatomic differences: Sympathetic division:

Answer:

short, branching (axon collaterals) preganglionic axon, and long postganglionic axons; mass activation Question 13: Anatomic differences: Parasympathetic division:

Answer:

long preganglionic axon, short postganglionic axon Question 14: What organs receive postganglionic axons from the superior mesenteric ganglion?

Answer:

distal half of the duodenum, remainder of small intestine (jejunum), proximal part of large intestine, part of pancreas, kidneys, and proximal parts of ureters Question 15: The area of gray matter of the spinal cord in segments T1-L2 houses the cell bodies of the sympathetic preganglionic neurons.

Answer:

lateral horn Question 16: Parasympathetic innervation from the vagus nerve has the following effects of the

digestive tract organs:

Answer:

increased secretory activity and increased smooth muscle motility Question 17: The sympathetic nervous system causes airways in the lungs to widen, while the parasympathetic nervous system causes them to narrow. This is an example of __ effects of dual innervation.

Answer:

antagonistic Question 18: The second of two ANS motor neurons is called the __ __. Its cell body resides w/in autonomic ganglion. A __ __ extends from cell body to effector (cardiac muscle, smooth muscle, or gland). Unmyelinated axons, smaller in diamter than preganglionic axons.

Answer:

ganglionic neuron, postganglionic axon

Question 19: What structures receive sympathetic innervation from the superior cervical ganglion?

Answer:

sweat glands of head, smooth muscle in blood vessels of the head and neck, the dilator pupillae muscle of the eye, and the superior tarsal muscle of the eye Question 20: Generally, the effects of the parasympathetic and sympathetic innervation of the same organ are __, opposing each other to produce different results.

Answer:

antagonistic

Question 21: What connects the spinal nerves to each sympathetic trunk?

Answer:

rami communicantes Question 22: The __ __ or __ __ components initiate and transmit nerve signals from the CNS to cardiac muscle, smooth muscle, and glands.

Answer:

autonomic motor or visceral motor Question 23: The __ __ __ (__) includes processes that are perceived or controlled consciously.

Answer:

somatic nervous system Question 24: What works constantly with the somatic nervous system to regulate body organs and maintain normal internal functions.

Answer:

autonomic nervous system Question 25: The diameter of blood vessels is maintained in a partially constricted state by the effects of __ __.

Answer:

sympathetic tone