Ch 14 Peripheral Nervous System

Question 1

mechanoreceptors

Answer 1

mechanical force, stretch, pressure (BP), vibration

Question 2

thermoreceptors

Answer 2

temperature

Question 3

photoreceptors

Answer 3

light

Question 4

chemoreceptors

Answer 4

chemicals, taste, smell, monitor blood, interstitial fluid

Question 5

nociceptors

Answer 5

harm/pain

Question 6

dermatomes

Answer 6

segment of skin supplied by single nerve

Question 7

monosynaptic reflex

Answer 7

stretch reflex, “deep tendon reflex”, muscle spindle reflex
direct communication between sensory and motor neuron

Question 8

golgi tendon reflex

Answer 8

reflex that causes the muscle to relax before it is stretched too much

Question 9

adaption

Answer 9

many receptor exhibit a reduction in sensitivity to constant stimulus

Question 10

phasic sensation

Answer 10

fast adaptation

Question 11

tonic sensation

Answer 11

long lasting

Question 12

perceptual detection

Answer 12

simplest level of perception, generally requires input from several receptors

Question 13

magnitude estimation

Answer 13

how intense a sensation is

Question 14

spatial discrimination

Answer 14

two point test (m back thing)

Question 15

feature abstraction

Answer 15

tuned to one feature or property

Question 16

quality discrimination

Answer 16

distinguish modalities

Question 17

pattern recognition

Answer 17

recognizing patters

Question 18

modalities

Answer 18

stimuli

Question 19

four main bilateral plexuses

Answer 19

cervical, brachial, lumbar, sacral

Question 20

cervical plexus

Answer 20

phrenic nerve (controls diaphragm)

Question 21

brachial plexus

Answer 21

median, musculocutaneous, and ulnar nerves

Question 22

median nerve

Answer 22

forearm muscles, thenar muscles, digits 1-3 and half of 4

Question 23

musculocutaneous nerve

Answer 23

arm muscles, hand muscles, pinkie and half of digit 4

Question 24

lumbar plexus

Answer 24

femoral nerve

Question 25

sacral plexus

Answer 25

sciatic nerve