Anatomy Nervous System Ii Jz

Front 1

Bundles of AXONS or PROCESSES

Back 1

nerves

Front 2

Collection of cell bodies

Back 2

ganglia

Front 3

Conduct information away from cell bodies

Back 3

motor or efferent fibers

Front 4

Monitor stimuli generated from the periphery to the CNS

Back 4

sensory or afferent fibers

Front 5

Distributed to skeletal muscle and to skin and membranes associated with the body wall. Motor components control voluntary movements and sensory components contain exteroreceptors.

Back 5

Somatic (Spinal) nerves

Front 6

Distributed to organs, motor components control involuntary movement of smooth and cardiac muscle, glands. Sensory components call interoreceptors relay information from internal tissues and organs

Back 6

Visceral nerves

Front 7

autonomic nervous system

Back 7

Regulates, coordinates, and integrates the activity, responses, and functions of the individual organs (viscera)

Front 8

Innervates involuntary muscle (smooth, cardiac) and glands

Back 8

autonomic nervous system

Front 9

initiates involuntary activities

Back 9

autonomic nervous system

Front 10

sensory fibers that monitor the functional status of viscera and convey the sensation of visceral pain

Back 10

interoreceptors

Front 11

1 of 2 divisions of ANS that mobilizes energy reserves and generates an "all or none" response

Back 11

sympathetic

Front 12

1 of 2 divisions of ANS that conserves resources, integrates and regulates body systems, and generates a localized/specific response.

Back 12

parasympathetic

Front 13

location of preganglionic neuron

Back 13

CNS (brain or spinal cord)

Front 14

location of postganglionic neuron

Back 14

PNS ganglion where synapse occurs

Front 15

two neuron chain

Back 15

In the autonomic nervous system an intervening synapse is required to produce an effect

Front 16

Autonomic ganglia are located in the CNS or PNS

Back 16

PNS

Front 17

3 ways autonomic nerves are distributed to organs

Back 17

independently forming a named nerve of plexus, with spinal or cranial nerves and their branches, with blood vessels

Front 18

Exceptional organs that do not receive both sympathetic and parasympathetic fibers

Back 18

smooth musculature of cutaneous blood vessels, erector pili, and sweat glands (receive only postganglionic sympathetic fibers)

Front 19

The segments in between which the sympathetic component of the ANS originates

Back 19

T1-L2

Front 20

Where does the parasympathetic component of the ANS originate?

Back 20

Brain and S2-S4

Front 21

Only location in the entire nervous system where preganglionic sympathetic neurons are found

Back 21

Intermediolateral cell column of the gray matter of the spinal cord at levels T1-L2

Front 22

Axons of the preganglionic sympathetic neurons exit the gray matter of the spinal cord as components of the _____ roots of spinal nerves

Back 22

ventral

Front 23

___ganglionic neurons travel through the white ramus commicans to before entering the paravetebral or pre-vertebral sympathetic chain ganglia

Back 23

pre

Front 24

___ganglionic neurons travel through the gray ramus commicans to be distributed to the skin together with somatic sensory fibers in the dorsal or ventral rami.

Back 24

post

Front 25

location of paravertebral chain ganglia

Back 25

adjacent to the vertebral column bilaterally and run from the cervical to the coccygeal region.

Front 26

location of pre-vertebral chain ganglia

Back 26

in the abdominal cavity in association with (in front of) major branches of the aorta for which they are named.

Front 27

3 possible courses for a presynaptic fiber in the sympathetic trunk

Back 27

enter and synapse immediately with a postsynaptic neuron of the paravertebral ganglion at that level, ascend of descend in the sympathetic trunk to synapse with a postsympathetic neuron of a different level, or pass through the sympathetic trunk without synapsin, continuing on by means of an abdominopelvic splanchnic nerve to reach a prevertebral ganglion.

Front 28

The postganglionic fiber (axon) exits via a gray ramus communicans to join either the _____ or ____ ramus

Back 28

ventral or dorsal

Front 29

What are the different types of fibers contained within a dorsal or ventral ramus?

Back 29

somatic motor, somatic sensory, postganglionic sympathetic AKA
somatic efferent, somatic afferent, visceral efferent

Front 30

ventral ramus of thoracic spinal nerve is aka

Back 30

intercostal nerve

Front 31

preganglionic sympathetic fibers exit the spinal cord via the ____ root to travel through a white ramus communicans to synapse in the sympathetic chain

Back 31

ventral

Front 32

a post-ganglionic fiber destined to travel through the skin via a dorsal or ventral ramus will traverse the ____ ramus communicans?

Back 32

gray

Front 33

(T/F) There are NO parasympathetic fibers located in the dorsal or ventral rami.

Back 33

TRUE

Front 34

How is a peripheral sympathetic response terminated?

Back 34

when the signal/stimulus that elicited the sympathetic response ends.

Front 35

Vasomotor

Back 35

sympathetic neuron that terminates in smooth muscle of peripheral blood vessels to vasoconstrict

Front 36

Sudomotor

Back 36

sympathetic neuron that stimulates sweat glands in the skin

Front 37

Pilomotor

Back 37

sympathetic neuron that supplies smooth musculature associated with hair shafts in the skin

Front 38

(T/F) Some postganglionic sympathetic fibers are distributed directly to the heart or lungs.

Back 38

TRUE

Front 39

(T/F)The abdominal and pelvic viscera only receive sympathetic innervation from prevertebral ganglia.

Back 39

TRUE