Sensory Perceptions

Question 1

receptors found in the body

Answer 1

-photoreceptors
-mechanoreceptors
-thermoreceptors
-noiciceptors
-chemoreceptors

Question 2

where can mechanoreceptors be found

Answer 2

ear, skin, muscles

Question 3

types of mechanoreceptors in the ear

Answer 3

-cochlear hair cells respond to sound waves for hearing
-macula detect gravity for maintaining static equilibrium
-crista ampullaris in semicircular canals detect rotational movements for maintaining dynamic equilibrium

Question 4

nociceptors detect

Answer 4

unpleasant stimuli
(chemo, mechano, or thermo)

Question 5

chemoreceptors can be found

Answer 5

on the tongue in the form of taste buds or in the skin to detect itch

Question 6

receptor adaptation is a

Answer 6

decrease in the sensitivity of a receptor despite maintenance of a constant strength

Question 7

photoreceptors do not adapt fast enough which creates a phenomenon called

Answer 7

after-image

Question 8

slow adapting receptors are called

Answer 8

tonic

Question 9

fast adapting receptors are called

Answer 9

phasic

Question 10

receptors fields are

Answer 10

specific areas served by a particular sensory neuron

Question 11

somatosensory receptors

Answer 11

-meissner’s (tactile)
-hair root plexus
-free nerve endings
-pacinian
-merkel (tactile)
-ruffini’s
-krause or bulbous

Question 12

fast adapting somatosensory receptors include

Answer 12

-meissner’s
hair root plexus
-free nerve ending
-pacinian

Question 13

tonic somatosensory receptors include

Answer 13

-ruffini
-merkel
-krause

Question 14

pressure detecting somatosensory receptors include

Answer 14

-meissner
-merkel
-pacinian

Question 15

meissner’s corpuscle info

Answer 15

-respond to light touch and pressure
-epidermis of skin
-index of fingertip is most sensitive to tactile stimuli
-fast adapting

Question 16

hair root plexus

Answer 16

-wrap around base of hair follicles
-detect bending of hair
-fast adapting

Question 17

free nerve ending

Answer 17

-most abundant in skin
-detect pain, warm, cold
-pain and cold are tonic
-warm is phasic

Question 18

pacinian corpuscles

Answer 18

-second most common
-dermis, visceral organs, bones
-detect crude or deep pressure
-phasic

Question 19

merkel disc

Answer 19

-bottom layer of epidermis
-fine touch felt as pressure
-help detect shapes and edges
-tonic

Question 20

ruffini’s corpuscle

Answer 20

-dermis, connective and subcutaneous tissue
-detect stretch
-tonic

Question 21

krause’s end bulb or bulbous corpusle

Answer 21

-skin
-thermo-receptors to cold
-found superficially in skin
-tonic

Question 22

weber’s test

Answer 22

-place the tuning fork atop your head to see whether the sound is equal in both ears
- tests whether there is a hearing loss in one ear

Question 23

rinne’s test

Answer 23

-place the tuning fork against your jawbone to see whether its louder than through the air.
-tests if there is conduction deafness

Question 24

what is sensorineural deafness

Answer 24

damage to inner ear sorta

Question 25

what is conduction deafness

Answer 25

something in inhibiting the sound mechanically

Question 26

the vestibular system is responsible for

Answer 26

equilibrium

Question 27

vestibular system receptors

Answer 27

-crista ampullaris
-maculae

Question 28

maculae

Answer 28

-located in the vestibule (saccule and utricle)
-static equilibrium
-linear acceleration (horizontal or vertical)

Question 29

crista ampullaris

Answer 29

-located in the ampulla of the three semicircular canals
-contains hair cells enclosed in a gelatinous cupula
-dynamic equilibrium
-maintain body position during angular motion