Nervous System Iii

Front 1

The awareness of a sensory input

Back 1

sensation

Front 2

The interpretation of sensory input

Back 2

Perception

Front 3

The body's decision process of determining where a sensation is coming from

Back 3

Projection

Front 4

Sensory receptors that respond to stimuli arising outside the body that are found near the body surface.

Back 4

Exteroreceptors

Front 5

sensory receptors that respond to stimuli arising within the body that are sensitive to chemical changes, stretch, and temperature changes

Back 5

Visceroreceptors

Front 6

sensory receptors that respond to the degree of stretch of the organs they occupy; can be found in skeletal muscle

Back 6

proprioceptors

Front 7

pain stimuli arising from the viscera that are perceived as somatic in origin

Back 7

referred pain

Front 8

plasma like fluid of the inner ear

Back 8

perilymph

Front 9

white connective tissue layer of the eye that anchors extrinisic muscles and protects the eye

Back 9

sclera

Front 10

a transparent, central anterior portion of the eye that allows light to pass through

Back 10

cornea

Front 11

the central opening of the iris that regulates the amount of light entering the eye.

Back 11

pupil

Front 12

the site where the optic nerve leaves the eye, which contains no photoreceptors, leaving it as a blind spot

Back 12

optic disc

Front 13

convex like structure that changes shape to allow us to see objects far or near

Back 13

lens

Front 14

watery fluid found in the anterior chamber of the eye

Back 14

aqueous humor

Front 15

gel-like substance in the posterior chamber of the eye that keeps the eye from collapsing and lasts a lifetime and is not replaced.

Back 15

vitreous humor

Front 16

to hear

Back 16

aud-

Front 17

skinlike

Back 17

choroid

Front 18

snail

Back 18

cochlea

Front 19

horn

Back 19

corn-

Front 20

rainbow

Back 20

iris

Front 21

maze

Back 21

labyrinth

Front 22

tears

Back 22

lacri-

Front 23

yellow

Back 23

lut-

Front 24

spot

Back 24

macula

Front 25

hammer

Back 25

malle-

Front 26

eye

Back 26

ocul-

Front 27

to smell

Back 27

olfact-

Front 28

eyelid

Back 28

palpebra

Front 29

light

Back 29

photo-

Front 30

hard

Back 30

sclera-

Front 31

heat

Back 31

therm-

Front 32

drum

Back 32

tympan-

Front 33

glass

Back 33

vitre-

Front 34

a sense detected through receptors widely distributed throughout the body

Back 34

general senses

Front 35

a sense that stems from receptors associated with specialized sensory organs, such as the eyes and ears.

Back 35

special senses

Front 36

receptor stimulated by the binding of certain chemicals

Back 36

chemoreceptor

Front 37

sensory receptor sensitive to temperature changes; warm and cold receptors

Back 37

thermoreceptor

Front 38

sensory nerve ending that conducts impulses interpreted as pain

Back 38

pain receptor

Front 39

sensory receptors that sense change in muscle, tendon, and body position.

Back 39

proprioceptors

Front 40

sensory receptor in certain blood vessel walls stimulated by changes in pressure

Back 40

baroreceptors

Front 41

sensory receptor that responds to a change in length or volume

Back 41

stretch receptor

Front 42

sensory receptor sensitive to light energy

Back 42

photoreceptor

Front 43

repeated stimulation, resulting in sensory receptors becoming unresponsive or inhibition along the CNS pathways leading to sensory regions of the cerebral cortex

Back 43

sensory adaptation

Front 44

sense associated with changes at the body surface

Back 44

exteroreceptive senses

Front 45

senses that detect changes in the viscera

Back 45

visceroreceptive senses

Front 46

sensory receptor clost to the surface of the skin that is sensitive to light touch

Back 46

meissner's corpuscles

Front 47

sensory receptors deep in the dermis providing perception of pressure

Back 47

pacinian corpuscles

Front 48

mechanoreceptor that senses changes in the muscle length

Back 48

muscle spindles

Front 49

muscle contraction in response to stretching the muscle.

Back 49

stretch reflex

Front 50

sensory receptors that sense tension and are involved in reflexes that help maintain posture

Back 50

golgi tendon posture

Front 51

organ containing receptors associated with the sense of taste

Back 51

taste buds

Front 52

tiny, nipplelike projections of the tongue

Back 52

papillae

Front 53

flap-like structure on the anterior wall of the atrium

Back 53

auricle

Front 54

thin membrane that covers the auditory canal and separates the outer ear from the middle ear, the eardrum.

Back 54

tympanic membrane

Front 55

bones of the middle ear

Back 55

auditory ossicles

Front 56

opening to the inner ear, covered by the stapes

Back 56

oval window

Front 57

tube that connects the middle ear cavity to the pharynx, eustachian tube.

Back 57

auditory tube

Front 58

part of the inner ear that has hearing receptors

Back 58

cochlea

Front 59

tubular structures in the inner ear that contain the receptors providing the sense of dynamic equilibrium

Back 59

semicircular canals

Front 60

bony chamber in the inner ear

Back 60

vestibule

Front 61

membrane-covered opening between the inner ear and the middle ear

Back 61

round window

Front 62

organ in the cochlear duct containing the receptors for hearing. It consists of hair cells and supporting cells

Back 62

organ of corti

Front 63

mechanoreceptors in the inner ear that trigger action potentials in fibers of the auditory nerve in response to sound vibrations

Back 63

hair cells

Front 64

maintenance of balance when the head and body are not moving

Back 64

static equilibrium

Front 65

maintenance of balance when the head and body are suddenly moved or rotated

Back 65

dynamic equilibrium

Front 66

saclike cavity that makes up part of the membranous labyrinth of the inner ear

Back 66

saccule

Front 67

chamber in the inner ear associated with static equilibrium

Back 67

utricle

Front 68

hair cells and supporting cells associated with an organ of static equilibrium

Back 68

macula

Front 69

expansion at the end of each semicircular canal that houses a crista ampullaris

Back 69

ampulla

Front 70

sensory organ in a semicircular canal that functions in the sense of dynamic equilibrium

Back 70

crista ampullaris

Front 71

mucous membrane covering the inside of the eyelid and much of the anterior surface of the eye.

Back 71

conjunctiva

Front 72

tear-secreting gland

Back 72

lacrimal gland

Front 73

transparent outer layer of the anterior eye wall

Back 73

cornea

Front 74

white fibrous outer layer of the eyeball

Back 74

sclera

Front 75

vascular, pigmented middle layer of the wall of the eye

Back 75

choroid coat

Front 76

structure associated with the choroid layer of the eye that secretes aqueous humor and contains the ciliary muscle

Back 76

ciliary body

Front 77

adjustment of the lens of the eye for close or distant vision

Back 77

accommodation

Front 78

watery fluid that fills the anterior cavity of the eye

Back 78

aqueous humor

Front 79

opening in the iris through which light enters the eye

Back 79

pupil

Front 80

inner layer of the eye wall that contains the photoreceptors

Back 80

retina

Front 81

yellowish depression in the retina of the eye associated with acute vision

Back 81

macula lutea

Front 82

depressed region of the retina, consisting of densely packed cones that provides the greatest visual acuity

Back 82

fovea centralis

Front 83

region in the retina of the eye where sensory fibers exit, becoming part of the optic nerve

Back 83

optic disc

Front 84

fluid between the lens and the retina of the eye

Back 84

vitreous humor

Front 85

collagenous fibers and fluid in the posterior cavity of the eye

Back 85

vitreous body

Front 86

bending of light as it passes between media of different densities

Back 86

refraction

Front 87

type of light receptor that provides colorless vision

Back 87

rods

Front 88

photoreceptor in the retina of the eye that can detect color

Back 88

cones

Front 89

light-sensitive pigment in the rods of the retina; visual purple

Back 89

rhodopsin

Front 90

the ability, using two eyes, to perceive objects as three-dimensional; depth perception

Back 90

stereoscopic vision