front 1 Preganglionic neurons of the autonomic nervous system are located
in the lateral gray horns of the spinal cord. the posterior gray horns of the spinal cord. both the brain and the lateral grey horns of the spinal cord both the brain and the posterior gray horns of the spinal cord | back 1 both the brain and the lateral grey horns of the spinal cord |
front 2 Norepinephrine and epinephrine enter the bloodstream when
sympathetic adrenal medulla liver brain heart kidneys | back 2 adrenal medulla |
front 3 Drugs that have effects similar to those of norepinephrine and
epinephrine sweating dilation of the pupil rapid respiration decreased blood pressure Decrease digestive activity | back 3 decreased blood pressure |
front 4 Post-ganglionic sympathetic fibers release the neurotransmitter acetylcholine norepinephrine GABA serotonin dopamine | back 4 norepinephrine |
front 5 Terminal ganglia are part of the: sympathetic system parasympathetic system | back 5 parasympathetic system |
front 6 Parasympathetic functions include all of the following, except stimulation of urination. constriction of the pupils. stimulation of defecation. decrease in the rate of cardiac contraction. dilation of the airways. | back 6 dilation of the airways. |
front 7 Most of the parasympathetic fibers come from the: sciatic nerve glossopharengeal nerve sacral region vagus nerve accessory nerve | back 7 vagus nerve |
front 8 Dilation of the pupils is a __________________________ response sympathetic parasympathetic | back 8 sympathetic |
front 9 The parasympathe!c nervous system arises from the ______________
area(s) cranial lumbar thoracic and lumbar cranial and sacral caudal | back 9 cranial and sacral |
front 10 Parasympathe!c s!mula!on to the liver, stomach, and gall bladder
is white ramus gray ramus greater splanchnic nerve vagus nerve lesser splanchnic nerve | back 10 vagus nerve |
front 11 The white ramus consists of: pre-ganglionic parasympathetic fibers post-ganglionic parasympathetic fibers pre-ganglionic sympathetic fibers post-ganglionic sympathetic fibers | back 11 pre-ganglionic sympathetic fibers |
front 12 The first of two motor neurons in any autonomic pathway is called premotor neuron preganglionic neuron postmotor neuron postganglionic neuron all answers are correct | back 12 preganglionic neuron |
front 13 Splanchnic nerves: innervate the diaphram run from the chain ganglia to the collateral ganglia control the sweat glands are sacral parasympathetic nerves go directly to the spleen | back 13 run from the chain ganglia to the collateral ganglia |
front 14 Muscarinic receptors are found mostly in autonomic ganglia. control sodium channels in the affected membrane. are blocked by norepinephrine. are normally activated by acetylcholine. always produce an excitatory response. | back 14 are normally activated by acetylcholine. |
front 15 The ________ division of the autonomic nervous system is said to
function parasympathetic somatomotor visceral thoracolumbar sympathetic | back 15 parasympathetic |
front 16 During sympathetic activation, ________ occurs. elevated blood glucose sweating elevated heart rate elevated blood pressure all of the above | back 16 all of the above |
front 17 Nicotinic receptors respond to epinephrine. respond to norepinephrine. are found at neuroeffector junctions of the parasympathetic nervous system. open chemically gated sodium ion channels. open chemically gated calcium ion channels. | back 17 open chemically gated sodium ion channels. |
front 18 Which of the following statements concerning the parasympathetic
division The ganglionic neurons always release acetylcholine. Preganglionic neurons are located in the brain stem and sacral
region of the spinal Preganglionic fibers are relatively short and postganglionic fibers
are relatively Ganglionic neurons are located in ganglia within or near to effectors. The actions of the parasympathetic division are more localized than
those of the | back 18 Preganglionic fibers are relatively short and postganglionic fibers
are relatively |
front 19 To say that most organs innervated by the ANS have 'dual
innervation' these organs release either acetylcholine or norepinephrine when stimulated. it take two postganglionic neurons to achieve the desired result. the organs are innervated by both sympathetic and parasympathetic neurons. the organs have both alpha and beta receptors. both a pregangionic and a postganglionic neuron go to the organ. | back 19 the organs are innervated by both sympathetic and parasympathetic neurons. |
front 20 Pre-ganglionic parasympathetic fibers release the neurotransmitter acetylcholine norepinephrine GABA serotonin dopamine | back 20 acetylcholine |