Special Senses Vocabulary

Front 1

Chemoreceptors

Back 1

the receptors for taste and olfaction, they respond to chemicals in solution.

Front 2

Mechanoreceptors

Back 2

receptors that respond to such physical forces

Front 3

Proprioceptors

Back 3

a receptor located in a muscle or tendon concerned with locomotion, posture, and muscle tone.

Front 4

Olfactory Receptors

Back 4

Receptors for the sense of smell, occupy a postage stamp-sized area in the roof of each nasal cavity.

Front 5

Taste Buds

Back 5

specific receptors for the surface of taste, are widely scattered in the oval cavity.

Front 6

Papillae

Back 6

the dorsal tongue surface is covered with small peglike projections.

Front 7

Auricle

Back 7

is what most people call the "ear"- the shell-shaped structure surrounding the auditory canal opening.

Front 8

External Auditory Meatus

Back 8

is a short, narrow chamber, carved into the temporal bone of the skull.

Front 9

Tympanic Membrane

Back 9

the eardrum

Front 10

Auditory Ossicles

Back 10

three tiny bones, the malleus, incus, and stapes, located within the middle ear that serve as transmitters of sound vibrations.

Front 11

Oval Window

Back 11

bony wall with two openings, and the inferior, membrane-covered round window.

Front 12

Auditory Tube

Back 12

runs obliquely downward to link the middle ear cavity with the throat, and the mucosae lining the two regions are continuous.

Front 13

Labyrinth

Back 13

located deep within the temporal bone behind the eye socket.

Front 14

Cochlea

Back 14

part of the subdivisions of the bony labyrinth are the spiraling, pea-sized.

Front 15

Semicircular Canals

Back 15

is one of the three semicircular canals, interconnected tubes located inside each ear.

Front 16

Vestible

Back 16

is situated between the semicircular canals and the cochlea.

Front 17

Organ of Corti

Back 17

is the receptor organ for hearing and is located in the mammalian cochlea.

Front 18

Static Equilibrium

Back 18

receptors called masculae are essential to our sense of static equilibrium. Provide which way is up or down.

Front 19

Crista Ampullaris

Back 19

which consists of a tuft of hair cells covered with a gelatinous cap called the cupula.

Front 20

Eyelid

Back 20

which meet at the medial and lateral corners of the eye.

Front 21

Conjunctiva

Back 21

lines the eyelids and covers part of the outer surface of the eyeball. Secretes mucus to lubricate the eye.

Front 22

Lacrimal Gland

Back 22

are located above the lateral end of each eye. Produces lacrimal fluid.

Front 23

Cornea

Back 23

the transparent anterior portion of the eyeball. The only human tissue that can be transplanted without fear of rejection.

Front 24

Choroid

Back 24

a blood-rich nutritive tunic that contains a dark pigment. This pigment prevents light from scattering inside the eye.

Front 25

Ciliary Body

Back 25

is the circumferential tissue inside the eye composed of the ciliary muscle and ciliary process. Holds lens, secretes aqueous humor.

Front 26

Accommodation

Back 26

the ability of the eye to focus specifically for close objects ( those less than 20ft away)

Front 27

Aqueous Humor

Back 27

the anterior ( aqueous) segment, anterior to the lens, contains a clear watery fluid. Provides nutrients for the lens and cornea.

Front 28

Pupil

Back 28

the pigmented iris has a rounded opening, the pupil, through which light passes.

Front 29

Retina

Back 29

delicate, two-layered, which extends anteriorly only to the ciliary body.

Front 30

Fovea Centralis

Back 30

a tiny pit that contains only cones

Front 31

Optic Disc

Back 31

where the optic nerve leaves the eyeball. (blind spot)

Front 32

Vitreous Humor

Back 32

the posterior (vitreous) segment, posterior to the lens, is filled with a gel-like substance.

Front 33

Cones

Back 33

one of the two types of photoreceptor cells in the retina of the eye. Provides for color vision.

Front 34

Masculae

Back 34

within the membrane sacs of the vestibule are receptors called masculae.