A&p Nervous System Iii

Front 1

Pertaining to or having the properties of a base or alkali; basic

Back 1

Alkaline

Front 2

An instrument used to measure the acuity of hearing

Back 2

Audiometer

Front 3

Color receptors in the retina of the eye

Back 3

Cones

Front 4

Sensory receptors in tendons close to muscle attachments that are involved in reflexes that help maintain posture

Back 4

Golgi Tendon Organ

Front 5

Colored muscular portion of the eye that surrounds the pupil and regulates it's size

Back 5

Iris

Front 6

An inherited inability to distinguish certain colors

Back 6

Color Blindness

Front 7

Loss of transparency of the lens of the eye

Back 7

Cataract

Front 8

The system of connecting tubes within the inner ear including the cochlea, vestibule and semicircular canals

Back 8

Labyrinth

Front 9

Tear secreting gland

Back 9

Lacrimal Gland

Front 10

Bone tissue

Back 10

Osseous Tissue

Front 11

A retinal neuron whose fibers pass laterally between other retinal cells

Back 11

Amacrine Cell

Front 12

A bone of the middle ear

Back 12

Auditory Ossicle

Front 13

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

Back 13

Dynamic Equilibrium

Front 14

Abnormal formation of spongy bone within the ear that may interfere with the transmission of sound vibrations to hearing receptors

Back 14

Otosclerosis

Front 15

Tiny, nipplelike projection

Back 15

Papilla

Front 16

The tube that connects the middle ear cavity to the pharynx; eustachian tube

Back 16

Auditory Tube

Front 17

A bending of light as it passes from one medium into another medium with a different density

Back 17

Refraction

Front 18

A group of organic substances that are usually bitter in taste and have toxic effects

Back 18

Alkaloid

Front 19

An earlike structure; the protion of the heart that forms the wall of an atrium

Back 19

Auricle

Front 20

Adjustment of the lens for close vision

Back 20

Accommodation

Front 21

Sensory receptor in the blood vessel wall stimulated by changes in pressure (pressoreceptor)

Back 21

Baroreceptor

Front 22

The vascular pigmented middle layer of the wall of the eye

Back 22

Choroid Coat

Front 23

Inner layer of the eye wall that contains the visual receptors

Back 23

Retina

Front 24

Light sensitive biochemical in the rods of the retina; visual purple

Back 24

Rhodopsin

Front 25

Nerve endings deep in the dermis providing perception of pressure

Back 25

Pacinian Corpuscle

Front 26

Fluid contained in the space between the membranous and osseous labyrinths of the inner ear

Back 26

Perilymph

Front 27

A type of light receptor that provides colorless vision

Back 27

Rod

Front 28

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

Back 28

Round Window

Front 29

A group of hair cells and supporting cells associated with an organ of static equiibrium

Back 29

Macula

Front 30

White fibrous outer layer of the eyeball

Back 30

Sclera

Front 31

Tubular structure within the inner ear that contains the receptors providing the sense of dynamic equilibrium

Back 31

Semicircular Canal

Front 32

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

Back 32

Saccule

Front 33

The phenomenon of a sensation becoming less noticeable once it has been recognized by constant repeated stimulation

Back 33

Sensory Adaptation

Front 34

A nerve ending that detects changes in tension of a muscle or tendon

Back 34

Proprioceptor

Front 35

Procedure in which needles are inserted into various tissues to control pain sensations

Back 35

Acupuncture

Front 36

Opening in the iris through which light enters the eye

Back 36

Pupil

Front 37

Sense that involves receptors associated with specialized sensory organs, such as the eyes and ears

Back 37

Special Sense

Front 38

Sensory organ located within a semicircular canal that functions in the sense of dynamic equilibrium

Back 38

Crista Ampullaris

Front 39

Sensory receptor close to the surface of the skin that is sensitive to light touch

Back 39

Meissner's Corpuscle

Front 40

The maintenance of balance when the head and body are motionless

Back 40

Static Equilibrium

Front 41

Lack of visual coordination; crossed eyes

Back 41

Strabismus

Front 42

A feeling resulting from the brain's interpretation of sensory nerve imulses

Back 42

Sensation

Front 43

Muscle contraction in response to stretching the muscle

Back 43

Stretch Reflex

Front 44

A thin membrane that covers the auditory canal and separates the external ear from the middle ear; the eardrum

Back 44

Tympanic Membrane

Front 45

An enlarged portion of the membranous labyrinth of the inner ear

Back 45

Utricle

Front 46

The collagenous fibers and flud that occupy the posterior cavity of the eye

Back 46

Vitreous Body

Front 47

The hairlike processes of the hair cells within the organ of corti

Back 47

Stereocilia

Front 48

Waxlike substance produced by cells that line the external ear canal

Back 48

Cerumen

Front 49

Watery fluid that fills the anterior and posterior chambers of the eye

Back 49

Aqueous Humor

Front 50

Portion of the inner ear that contains the receptors of hearing

Back 50

Cochlea

Front 51

Pertaining to the ear or the sense of hearing

Back 51

Auditory

Front 52

Fluid contained within the membranous labyrinth of the inner ear

Back 52

Endolymph

Front 53

A sensory receptor that is sensitive to mechanical stimulation such as changes in pressure or tension

Back 53

Mechanoreceptor

Front 54

Organ containing receptors associated with the sense of taste

Back 54

Taste Bud

Front 55

Objects perceived as three dimensional; depth perception

Back 55

Stereoscopic Vision

Front 56

Sensory nerve ending that responds to tension

Back 56

Stretch Receptor

Front 57

A sensory receptor that is sensitive to changes in temperature; a heat receptor

Back 57

Thermoreceptor

Front 58

A space at the opening to a canal

Back 58

Vestibule

Front 59

A light sensitive pigment within the cones of the retina

Back 59

Iodopsin

Front 60

Process by which the brain causes a sensation to seem to come from the region of the body being stimulated

Back 60

Projection

Front 61

Muscles whose fibers are arranged in circular patterns, usually around an opening or in the wall of a tube; sphincter muscles

Back 61

Circular Muscles

Front 62

The substance that occupies the space between the lens and the retina of the eye

Back 62

Vitreous Humor

Front 63

Mechanorecptor in the inner ear that lies between the basilar membrane and the tectorial membrane and triggers action potentials in fibers of the auditory nerve

Back 63

Hair Cell

Front 64

A delicate fiber within the eye that extends from the ciliary process to the lens capsule

Back 64

Zonular Fiber

Front 65

Pertaining to the palate

Back 65

Palantine

Front 66

Modified skeletal muscle fiber that can respond to changes in muscle length

Back 66

Muscle Spindle

Front 67

Region in the retina of the eye where nerve fibers leave to become part of the optic nerve

Back 67

Optic Disk

Front 68

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

Back 68

Ampulla

Front 69

Pain that feels as if it is originating from a part other than the site being stimulated

Back 69

Referred Pain

Front 70

A form of vitamin A; retinene

Back 70

Retinal

Front 71

A receptor that is stimulated by the binding of certain chemicals

Back 71

Chemoreceptor

Front 72

Loss of the eye's ability to accommodate due to declining elasticity in the lens; farsightedness of age

Back 72

Presbyopia

Front 73

Sensory nerve ending associated with the feeling of pain

Back 73

Pain Receptor

Front 74

Chemical precursor of rhodopsin

Back 74

Retinene

Front 75

Loss of hearing that accompanies old age

Back 75

Presbycusis

Front 76

Visual defect due to errors in refraction caused by abnomal curvatures in the surface of the cornea or lens

Back 76

Astigmatism

Front 77

A yellowish depression in the retina of the eye that is associated with acute vision

Back 77

Macula Lutea

Front 78

Nearsightedness

Back 78

Myopia

Front 79

A small particle of calcium carbonate associated with the receptors of euilibrium

Back 79

Otolith

Front 80

Movement turning a body part on its longitudinal axis

Back 80

Rotation

Front 81

Transparent anterior portion of the outer layer of the eye wall

Back 81

Cornea

Front 82

Mental awareness of sensory stimulation

Back 82

Perception

Front 83

Membranous covering on the anterior surface of the eye

Back 83

Conjunctiva

Front 84

Receptor on effector cell membrane that combines with epinephrine or norepinephrine

Back 84

Alpha Receptor

Front 85

An organ in the cochlear duct that contains the receptors for hearing, it consists of hair cells and supporting cells

Back 85

Organ of corti

Front 86

Opening between the stapes and the inner ear

Back 86

Oval Window

Front 87

A nerve ending that is sensitive to light energy

Back 87

Photoreceptor

Front 88

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

Back 88

Ciliary Body