Ch 18

Question 1

Modified sweat glands of the eye between the eyelashes

Answer 1

Ciliary glands

Question 2

This covers the inner surface of the eyelids and anterior surface of the eye

Answer 2

Conjunctiva

Question 3

This is a membrane that produces mucous to lubricate the eye

Answer 3

Conjunctiva

Question 4

The fibrous tunis consists of (2)

Answer 4

Sclera

Cornea

Question 5

This part of the eye is a transparent window for light entry

Answer 5

Cornea

Question 6

This part of the eye shapes, protects, and anchors the eye muscles

Answer 6

Sclera

Question 7

The vascular tunic consists of (3)

Answer 7

Choroid
Ciliary body
Iris

Question 8

Part of the eye that adjusts the amount of light entering the eye

Answer 8

Iris

Question 9

Part of the eye that secretes aqueous humor, holds lens in place, and can change the thickness of the lens

Answer 9

Ciliary

Question 10

Sympathetic stimulation causes radial muscles to contract and the pupil

Answer 10

Dilates

Question 11

Parasympathetic stimulation causes circular muscles to contract, and the pupil

Answer 11

Constricts

Question 12

Part of the eye that provides nutrients and absorbs light that prevents reflection and scattering

Answer 12

Choroid

Question 13

Part of the eye that produces pressure inside the eye for support, supplies nutrients and oxygen, and carries wastes away from the cornea, lens, and retina

Answer 13

Vitreous humor

Question 14

Part of the eye that supports lens, holds retina in place, and creates intraocular pressure

Answer 14

Vitreous humor

Question 15

The two layers of the retina are

Answer 15

Pigmented

Neural

Question 16

Retinal layer that contains photoreceptors for visual perception

Answer 16

Neural

Question 17

Retinal layer that absorbs light and stores vitamin A

Answer 17

Pigmented

Question 18

Part of the retina that provides acute color vision in bright light

Answer 18

Fovea centralis

Question 19

Part of retina that contains no receptors (blind spot)

Answer 19

Optic disc

Question 20

Part of retina that provides night, dim light, and peripheral vision

Answer 20

Rods

Question 21

Part of retina that contains widely spaced cones

Answer 21

Macula lutea

Question 22

The visual pigment made from protein

Answer 22

Opsin

Question 23

The visual pigment made from vitamin A

Answer 23

Retinal

Question 24

Part of th eye that bends light to focus precise images on the retina through accommodation

Answer 24

Lens

Question 25

Nearsightedness is called ___ and the eyeball is too ___ causing distant objects to be focued in front of the ______ causing blurring

Answer 25

Myopia Long Retina

Question 26

Farsightedness is called ___ and the eyeball is too ___ causing nearby objects to be focused behind the ___ causing blurring

Answer 26

Hyperopia Short Retina

Question 27

Irregular curvature in parts of the cornea or lens causes

Answer 27

Astigmatism

Question 28

Clouding of the lens is called

Answer 28

Cataract

Question 29

Increased intraocular pressure compressing retina, optic nerve, and blood vessels is called

Answer 29

Glaucoma

Question 30

Glands that produce wax in the ear

Answer 30

Ceruminous

Question 31

The covering of the opening of the auditory canal is

Answer 31

Tympanic membrane

Question 32

This ear tube allows for equalizing pressure

Answer 32

Auditory tube

Question 33

The eardrum sends vibration to this ear bone

Answer 33

Malleus

Question 34

The inner ear is also called the ___ which includes the ___ organs for hearing and ___

Answer 34

Bony labyrinth Sense Balance

Question 35

Contained in the organ of corti are ___, which are hair cells, and a gel-like tectorial membrane bends the ___ cells, and the cochlear nerve attached to ___ cells transmits nerve impulses to the ___ on the temporal lobe

Answer 35

Receptors Hair Hair Auditory cortex

Question 36

The spiral organ of the corti interprets frequencies of vibrations from the cochlea as differences in ___

Answer 36

pitch

Question 37

The organs of equilibrium have receptor cells with two structures

Answer 37

Vestibules | Semicircular canals

Question 38

This reports the position of the head

Answer 38

Maculae

Question 39

In the maculae, hair cells are embedded in the ___ membrane, and otoliths float in a gel around ___ cells, and movements cause otoliths to bend the ___ cells

Answer 39

Otolithic Hair Hair

Question 40

This responds to rotational movements of the head

Answer 40

Semicircular canals

Question 41

Receptors in the semicircular canals are

Answer 41

Christa ampularis

Question 42

Olfactory receptors are in the roof of the

Answer 42

Nasal cavity

Question 43

Interpretation of smells is made in the

Answer 43

Cortex

Question 44

Taste buds are located on the (3)

Answer 44

Tongue Soft palate Cheeks

Question 45

These cells are the taste receptors

Answer 45

Papillae

Question 46

The four types of taste sensation receptors are

Answer 46

Sweet Sour Bitter Salty