chapter 15 anatomy

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which type of nerve fibers make up the autonomic nervous system

sympathetic and parasympathetic fibers

where do sympathetic preganglionic fibers synapse

sympathetic trunk and collateral ganglia

where are the cell bodies of somatic motor neurons located

ventral horn of spinal cord

which region of the spinal cord does not contain any autonomic neurons


parasympathetic division of the autonomic nervous system is characterized by

localized effects on specific organs and short postgaglionic axons near organ of innervation

general visceral motor systems of the ANS differs from the general somatic motor system

motor units in the ANS include a chain of two motor neurons

divisions of the ANS

they innervate many of the same visceral organs

the ANS is the system of ____neurons that regulates such functions as _____

motor/HR, digestion, BP

postganglionic sympathic fibers to sweat glands and peripheral blood vessels secrete


the general visceral motor division of the peripheral nervous system describes the


cell body of this autonomic neuron lies outside the CNS

post-ganglionic neuron

cell body of this autonomic neuron lies within the CNS

pre-ganglionic neuron

division that is dominant during exercise excitement, emergenices


which of these is not innervated by the ANS

skeletal muscle

another name for the ANS is the

general visceral motor system

the trunk ganglia contain what kind of cell bodies

postganglionic sympathetic

cell bodies of the repganglionic sympathetic neurons are located within the

lateral gray horns of the spinal cord

which autonomic division increases HR


preganglionic fibers are myelinated, whereas postganglionic-fibers are unmyelinated


which cranial nerve carries parasympathetic innervation to the thoracic abdominal viscera


division of the ANS most active during vigorous exercise describes the


division of the ANS responsible for the fight or flight


division of ANS most active when the body is at rest describes the


this division can also be called the craniosacral division


division that is dominant during rest digestion exertion


which division of the autonomic nervous system has preganglionic fibers within the facial nerve


all of the following have only sympathetic innervation except the

salivary gland

which of the following cranial nerves does not supply parasympathetic fibers tot he head


parasympathetic is characterized by

peripheral ganglia near the organs, short postganglionic fibers

the site of origin of the preganglionic fibers of the parasympatheticnervous system

brain stem, sacral region of the cord

cranial parasympathetic outflow is contained in all of the following cranial nerves except the


in which autonomic division do nerve cell bodies like closest to the organs being innervated


parasympathetic postgaglionic fibers of the head trail within the

trigeminal nerve

sympathetic fibers leave the spinal cord in the

thorasolumbar region, and the postganglionic fibers secrete norepinephrine

over 90% of all preganglionic parasympathetic fibers are in the cranial nerve


what is the effect of parasympathetic stimulation of respiratory bronchioles in the lungs


parasympathetic stimulation of blood vessels causes vasoconstriction and increased BP


postganglionic sympathetic fibers are relatively long compared to those of the parasympathetic division can be distinguished by the amount of branching of the post-ganglionic fibers


adrenal medulla

pregagnlionic sympathetic axons terminate in the adrenal medulla and stimulate the release of epinephrine and nonrepinephrine

sympathetic innervation to the head follows which pathway


if you were very nervous about speaking in front of a group, what would most likely happen

dry mouth

what is the role of the gray rami communicates

they are the postganglionic sympathetic axons that direct impulse to intended peripheral organs

the sympathetic pathways to the extremities, direct impulses to which of these structures/tissues

arrector pilli muscles and sweat glands

short nerve branches that connect the ventral rami of spinal nerves to the sympathetic ganglia

rami communicates

ganglia os this structure are connected to the ventral rami of spinal nerves through rami communicates

sympathetic trunk

which division of the ANS innervate the sweat glands in the skin


the gray and white rami communicants attach to the

ventral rami

what stimulates the adrenal medulla to secrete its excitatory neurohormones

preganglionic sympathetic neurons

cell bodies of preganglionic sympathetic neurons are located within the

lateral horns of the gray matter of the spinal cord

identify the pathway that correctly traces the movement of preganglionic sympathetic fibers

ventral root to white famous communicants to sympathetic trunk ganglion

the secretions tot the adrenal medulla act to supplement the effects of

sympathetic stimulation

where would you not find an autonomic ganglion

the armpit

sympathetic trunk ganglia contain the cell bodies of sensory neurons and are located in the dorsal root of the spinal cord


referred pain from the small intestines would be felt in the ___whereas referred pain from the liver would be felt in the ____

umbilical region / superior right thoracic region and superior right quadrant

control of temp, autonomic nervous reflexes, of hunger, and of sleep are function associated with the


the part of the brain that exerts more control over autonomic functioning than any other part if the


the overall integrating center for the ANS


stimulation of the vagus nerve in the barorecptor reflex causes

decreased HR

the enteric nervous system functions

entirely within the wall of the digestive tube

what influence does the cerebral cortex have on the ANS

voluntary sympathetic activation occurs when the cerebral cortex acts on the amygdala when one remembers a scary event

which region of CNS integrates the activities of the ANS


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