Chapter 8 Special Sense

Question 0

Blind spot

Answer 0

The small, circular, optically insensitive region in the retina where fibers of the optic nerve emerge from the eyeball.

Question 1

Accommodation

Answer 1

Adjustment of the eye for seeing objects at close range.

Question 2

Chemoreceptors

Answer 2

Receptors sensitive to various chemicals in solution.

Question 3

Choroid

Answer 3

The pigmented nutritive layer of the eye

Question 4

Ciliary body

Answer 4

the ciliary body is a circular band of muscle that is connected and sits immediately behind the iris.

Question 5

Cochlea

Answer 5

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

Question 6

Cornea

Answer 6

The transparent anterior portion of the eyeball

Question 7

Crista ampullaris

Answer 7

the sensory organ of rotation located in the semicircular canal of the inner ear.

Question 8

Dynamic equilibrium

Answer 8

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

Question 9

Iris

Answer 9

The pigmented, involuntary muscle that acts as the diaphragm of the eye

Question 10

Labyrinth

Answer 10

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

Question 11

Lens

Answer 11

The crystalline lens is a transparent, biconvex structure in the eye that, along with the cornea, helps to refract light to be focused on the retina.

Question 12

Maculae

Answer 12

receptors for static equilibrium (up and down motion)

Question 13

mechanoreceptors

Answer 13

receptors that respond the physical forces (movement of the head, fluid, balance)

Question 14

olfactory receptors

Answer 14

Smell

Question 15

ossicles

Answer 15

small bones- transmit vibration of the eardrum to the fluids in the inner ear : hammer/malleus, anvil/incus, stirrup/stapes

Question 16

photoreceptors

Answer 16

rods (allows us to see in grey tones and peripheral/cones (respond to light)

Question 17

Refraction

Answer 17

Bend of the rays

Question 18

sclera

Answer 18

the outer fibrous layer of the eye. a tough, protective white covering and helps maintain shape

Question 19

Taste buds

Answer 19

Taste

Question 20

middle ear/ tympanic cavity

Answer 20

small, airfilled cavity within the temporal bone, a small, air-filled, mucosa-lined cavity in the petrous portion of the temporal bone; spanned by the auditory ossicles

Question 21

vestibule/semicurcular canals

Answer 21

part of the bony labyrinth of the inner ear