chapter 15 multiple choice essay

the autonomic nervous system controls all of the following except the __________.
skeletal muscle in the rectus abdominis
autonomic nervous system fibers are involved in all of the following except__________.
maintaining tonicity of the muscles of the neck
which one of the following best describes the order of a visceral reflex?
sensory receptor-afferent nerve fiber-interneuron-efferent nerve fiber-gland
which of the following statements is true regarding parasympathetic tone?
it holds the resting heart rate below its intrinsic rate.
sympathetic nerve fibers are not associated with situations involving _________.
digestion
the background rate of sympathetic and parasympathetic activity is called__________.
autonomic tone
the neurotransmitter(s) associated with autonomic ganglia is (are) _________.
acetylcholine (ACh)
the effect of autonomic fibers on target cells is _______. the effect of somatic fibers on target cells is _________.
excitatory or inhibitory; always excitatory
which of the following is true regarding the autonomic nervous system?
its denervation would cause hypersensitivity
in response to high blood pressure, stretch receptors called _________ in the walls of arteries carrying blood to the head, will trigger a reflex that causes the heart to _______ its beats per minute.
baroreceptors; decrease
the motor pathway of the autonomic nervous system usually involves _________ neurons.
two
preganglionic fibers run from the ________to the ________.
gray matter; autonomic ganglia
preganglionic fibers of the autonomic efferent pathway are ________ and secrete __________.
myelinated; acetylcholine (ACh)
which of the following is not a reason that somatic reflexes act faster than visceral reflexes?
the effector organs in the somatic reflex are closer to the spinal cord
most fibers of the parasympathetic nervous system travel in the __________.
vagus
Sympathetic fibers arise only from the _________ region(s) of the spinal cord.
thoracic and lumbar
the sympathetic chain of ganglia is found at the ________ levels of the spinal cord.
cervical, thoracic, lumbar, sacral, and coccygeal
which of the following is not a feature of the sympathetic division of the ANS?
it has long preganglionic fibers
which of the following is not a characteristic of the parasympathetic division of the ANS?
it has short preganglionic fibers
which of the following structures releases neurotransmitter in a paravertebral ganglion?
preganglionic sympathetic fiber
which of the following structures is not associated with the autonomic nervous system?
oculomotor nerve
most preganglionic fibers in the sympathetic nervous system synapse with _________.
10-20 postganglionic neurons
the solar plexus is used as a name for the _________.
the celiac and mesenteric ganglia
the adrenal medulla secretes mostly ____________.
epinephrine (adrenaline)
the parasympathetic division arises from the ________ regions of the spinal cord.
brain and sacral
damage to the __________ may affect near vision accommodation.
oculomotor nerve (CN III)
white rami carry _________ neurons, while gray rami carry _______ neurons.
myelinated preganglionic; unmyelinated postganglionic
which of the following is not a characteristic of the enteric nervous system?
its reflex arcs are associated with the spinal cord
if a cell has a1 adrenergic receptors, it is sensitive to __________.
adrenaline
which of the following is not under dual control of the ANS?
adrenal medulla activity
propranolol, a beta-blocker, is typically used to ________.
decrease hear rate
which of the following is more effective in producing bronchodilation?
norepinephrine
muscarinic receptors bind __________.
acetylcholine
the binding of __________ to a nicotinic receptor of a muscle fiber will __________it.
acetylcholine; excite
atropine is sometimes used to dilate the pupil for an eye examination. which receptor would atropine block?
muscarinic receptor
antagonistic effects of the two divisions of the autonomic nervous system are exemplified in the control of ___________.
gastrointestinal motility
__________ is an example of the cooperative effect between the two autonomic nervous system divisions.
orgasm
sympathetic fibers do not release __________.
nitric oxide (NO)
sympathetic effects tend to last _______than parasympathetic effects. one reason is that _________.
longer; norepinephrine can diffuse into the bloodstream without being broken down.
the enzyme that breaks down norepinephrine (NE) is called ___________.
monoamine oxidase (MAO)
a neuron that synapses in the adrenal medulla is a ____________ neuron, and releases the neurotransmitter ___________.
preganglionic; acetylcholine (ACh)
drugs that are monoamine oxidase (MAO) inhibitors would most likely __________.
decrease the amount of NE destroyed and may be used as an antidepressant
a possible explanation for the effect of caffeine is that it blocks the receptor for a neuromodulator in the brain called ____________, which inhibits ACh release by cholinergic neurons.
adenosine
which one of the following is made up of primarily adrenergic fibers?
postganglionic neurons of the sympathetic division
the _________ is an especially important center of autonomiccontrol.
hypothalamus
autonomic function receives input from all these except ______________.
spinal cord
___________nerve(s) pass(es) throughout sympathetic ganglia without synapsing.
splanchnic
which of the following is associated with the “fight-or-flight” reaction?
reduced urinary output

Did not find what you wanted? Get help from our experts.

Find a Perfect and Reliable Professional Essay Writer Helper to write your essay for a Reasonable Price.

best essay writing service

Need help with your Assignment?

Give us your paper requirements,and we’ll deliver the highest-quality essay at only $13 a page.

Some of the free features you will receive:

Find a perfect and reliable professional for your essay writing needs.

Essay Writing Services

If you are a student who is struggling to meet tight deadlines, we are here to help! Do you need to employ an essay writing service? Hire us if you want the best essays. We are a dedicated staff of professional, well-seasoned, and superb essay writer helpers.

Dissertation Writing Services

Did you know we provide the best dissertation writing service on the internet? We continue to receive favorable feedback from our consumers about the excellent work we produce. So, instead of worrying about whom to pay for the dissertation, contact us. We are a dedicated staff of professional, well-seasoned, and superb essay writer helpers.

Assignment Writing Services

We attempt to provide the essay help you require ensuring, that your papers are of the highest quality. When you decide to work with us, we assess your requirements and find the best writer to assist you with your essay. We are a dedicated staff of professional, well-seasoned, and superb essay writer helpers.

Nursing Essays Writing Services

Here’s how it works: you place an order for a nursing essay, and we deliver. It’s as easy as it sounds. This is workable because we have the greatest professional paper writers that are both quick and skilled. We will assign your assignment to the most qualified writer

Coursework Writing Help

Our staff of qualified and professional paper writers has continuously distinguished us as the best coursework writing help service. They are all-natural English speakers with advanced degrees in a variety of professions. We offer the best essay writing services.

Article Writing Services

Our knowledgeable and expert article writing paper writers have advanced degrees in a variety of subjects. We will assign the most appropriate one to you based on the field and topic of your article review. They are all fluent English speakers who fully grasp your requirements. We are a dedicated staff of professional, well-seasoned, and superb essay writer helpers

You May Also Like…

Violence in Sports Essay Sample

Violence in Sports Essay Sample

Violence in Sports Essay Sample From an outsider's perspective, it is hard to understand the social aspect of a sports...