Which of the following contributes to long-lasting effects of the sympathetic nervous system? Postganglionic fibers of the sympathetic nervous system are longer than the parasympathetic Norepinephrine and epinephrine released from the adrenal medulla have prolonged actions The parasympathetic nervous system can be overridden by the sympathetic nervous system Sympathetic preganglionic axons branch profusely as they enter the sympathetic trunk Acetylcholine is inactivated more slowly than norepinephrine

Which of the following contributes to long-lasting effects of the sympathetic nervous system? Postganglionic fibers of the sympathetic nervous system are longer than the parasympathetic Norepinephrine and epinephrine released from the adrenal medulla have prolonged actions The parasympathetic nervous system can be overridden by the sympathetic nervous system Sympathetic preganglionic axons branch profusely as they enter the sympathetic trunk Acetylcholine is inactivated more slowly than norepinephrine

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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Which of the following best describes the sympathetic nervous system? i) Associated with stressful situations ii) Norepinephrine may be involved iii) Associated with voluntary responses i only O ii only Oi and ii only i and iii only O i, ii, and iii
Describe how the sympathetic and parasympathetic nervous system affects the following organs: heart, eyes, gastrointestinal system
The receptors for the sympathetic system are called Cholinergic True False
Which of the following is a feature exclusively of the sympathetic division of the ANS? Select one: O a. Postganglionic axons tend to be localized to a single effector O b. Most preganglionic axons are short O. None of these options is a feature of the sympathetic system O d. Preganglionic neurons extend from the brain stem or sacral elements of the spinal cord
Select all features of the nervous system. Uses neurotransmitters transported through blood Responses have a long duration effect Cannot act over long distances V Responses have a short duration effect Responses take a longer time Can have targets that are in distant locations in the body Has a rapid response time
Which of the following could be used to describe the parasympathetic nervous system? Select all that apply. Short preganglionic, long postganglionic fibers. O long preganglionic, short postganglionic fibers. Known to be active during "rest and digest" responses. Stimulates ciliary muscles of the eye, which makes the lens bulge for close vision. O Active during "fight or flight" responses. increases heart rate « Previous Next
2) Fill in the chart below on the anatomical differences between sympathetic and parasympathetic systems. Sympathetic Parasympathetic Origin Length of Fibers Location of ganglia Preganglionic Neurotransmitters Postganglionic Neurotransmitters
Which of the following responses are regulated by the parasympathetic nervous system? (Select all that apply). Reducing heart rate Dilation of the bronchioles O Increasing digestive enzyme release O Pupil constriction Penile erection O Dilation of coronary blood vessels
In the sympathetic division of the autonomic system: preganglionic neurons originate in the thoracolumbar segments of the cord the preganglionic neurons are unmyelinated the preganglionic neurons are long the neurotransmitter released by the preganglionic neurons is norepinephrine
How does the baroreceptor reflex raise blood pressure when blood pressure is too low? Stimulates the sympathetics and stimulates the parasympathetics Inhibits the sympathetics and inhibits the parasympathetics Stimulates the sympathetics and inhibits the parasympathetics Inhibits the sympathetics and stimulates the parasympahtetics
Select all options below which are correct regarding THE MAJORITY OF sympathetic postganglionic neurons. Their cell bodies have nicotinic receptors. O Their cell bodies have muscarinic receptors. Their cell bodies have adrenergic receptors. They release noradrenaline. They release adrenaline. O They release acetylcholine.
Once a sympathetic preganglionic axon reaches a paravertebral ganglion, it can: pass through the paravertebral ganglion without synapsing until it reaches the prevertebral ganglion. O True False