PNS

Question 1

What is the PNS made up of?

Answer 1

everything outside the brain and spinal cord!! (lots of RECEPTORS)
-sensory receptors
-nerves + ganglion
-efferent motor endings

Question 2

What are sensory receptors?

Answer 2

Specialized structures that respond to stimuli in an enviorment by sending impulses in afferent neurons to CNS

Question 3

Receptor based off stimulus it detetcs:
Mechanoreceptors

Answer 3

detect touch, pressure, vibrations

Question 4

Receptor based off stimulus it detetcs:
Thermoreceptors

Answer 4

detect temp changes

Question 5

Receptor based off stimulus it detetcs:
Photoreceptors

Answer 5

detect light energy

Question 6

Receptor based off stimulus it detetcs:
Chemoreceptors

Answer 6

detect chemicals in smell and air
-blood chm changes

Question 7

Receptor based off stimulus it detetcs:
Nociceptors

Answer 7

detect damaging stimuli that result in pain

Question 8

Receptor based of location:
Exteroceptors

Answer 8

sensitive to stimuli OUTSIDE body

Question 9

Receptor based of location:
Interoceptors

Answer 9

Sensitve to stimuli IN the body

Question 10

Receptor based of location:
Proprioceptors

Answer 10

sensitve to internal stimuli in skeletal muscle, tendons, joints, and ligs in bones and muscles

Question 11

Simple receptors

Answer 11

modified nerve endings of sensory neuorns
skin, mucous membranes, muscles, connective tissue

Question 12

complex receptors

Answer 12

special senses of vision, hearing, smell

Question 13

Endoneurium

Answer 13

encloses each axon

Question 14

fascicles

Answer 14

a bundle of axons

Question 15

perineurium

Answer 15

covers a fasicle

Question 16

epineurium

Answer 16

VAN. covers facscle, and artery and Vein

Question 17

Ganglia

Answer 17

collections of neuron cell bodies that are associated with sensory and motor neurons