Chapter 8 special senses vocab

Question 0

The point where the optic nerve leaves the back of the eye ball

Answer 0

Blind spot

Question 1

Adjustments of the eye for seeing objects in close range

Answer 1

Accommodation

Question 2

receptors sensitive to various chemicals in solution.

Answer 2

Chemoreceptors

Question 3

the pigmented nutritive layer of the eye.

Answer 3

Choroid

Question 4

the part of the tunic of the eye, between the choroid coat and the iris, consisting chiefly of the ciliary muscle and the ciliary processes. Function is to produce aqueous and control accommodation.

Answer 4

Ciliary body

Question 5

a cavity of the inner ear resembling a snail shell; houses the hearing receptor.

Answer 5

Cochlea

Question 6

the transparent anterior portion of the eyeball.

Answer 6

Cornea

Question 7

the sensory organ of rotation located in the semicircular canal of the inner ear. The function is to sense angular acceleration and deceleration.

Answer 7

Crista ampullaris

Question 8

sense that reports on angular or rotatory movements of the head in space.

Answer 8

Dynamic equilibrium

Question 9

the pigmented, involuntary muscle that acts as the diaphragm of the eye. Controls how much light is let in.

Answer 9

Iris

Question 10

bony cavities and membranes of the inner ear that house the hearing and equilibrium receptors.

Answer 10

Labyrinth

Question 11

the elastic, doubly convex structure in the eye that focuses the light entering the eye on the retina.

Answer 11

Lens

Question 12

Receptors within membrane sacs of vestibule that are essential to our sense of static equilibrium. Reports on changes in the position of the head in space with respect to the pull of gravity when the body is not moving.

Answer 12

Maculae

Question 13

receptors sensitive to mechanical pressures such as touch, sound, or contractions.

Answer 13

Mechanoreceptors

Question 14

Receptors for sense of smell

Answer 14

Olfactory receptors

Question 15

Contains hearing receptors or hair cells

Answer 15

Organ of Corti

Question 16

the three bones of the middle ear: hammer (malleus), anvil (incus), and stirrup (stapes); also called the auditory ________.

Answer 16

Ossicles

Question 17

specialized receptor cells that respond to light energy.

Answer 17

Photoreceptors

Question 18

To bend; usually refers to light

Answer 18

Refraction

Question 19

sensitive layer of the eye; contains rods and cones.

Answer 19

Retina

Question 20

the firm white fibrous outer layer of the eyeball; protects and maintains eyeball shape.

Answer 20

Sclera

Question 21

three tiny, fluid-filled tubes in your inner ear that help you keep your balance.

Answer 21

Semicircular canals

Question 22

balance concerned with changes in the position of the head.

Answer 22

Static equilibrium

Question 23

receptors for taste on the tongue, roof of mouth, and pharynx.

Answer 23

Taste buds

Question 24

Eardrum

Answer 24

Tympanic cavity

Question 25

the central cavity of the bony labyrinth of the ear

Answer 25

Vestibule