chap 21

Question 1

obstructioin/ blockage of the nasolacriminal duct will prevent drainage of tears into the

Answer 1

nasal cavity

Question 2

description of ceruminous gland

Answer 2

near the external opening of external auditory canal

Question 3

descritption for the sebaceous ciliary gland

Answer 3

at the base of the follicles of the eyelashes

Question 4

in the bright light, the _____ muscle of the iris contacts causing a ____ in the size of the pupil

Answer 4

sphincter pupillae; decrease

Question 5

T/F

space within the eye between the lends and cornear is the anterior cavity

Answer 5

true

Question 6

T/F

auditory tube connects the inner ear to thenasopharynx

Answer 6

false

Question 7

T/F

vestibular apparatus consists of the organs responsible for hearing and equilibrium

Answer 7

false

Question 8

vitreous body

Answer 8

none

Question 9

T/F
glavcoma, most common cause of blindness in U.S. results from abnormal build-up of aqueous humor in the anterior cavity of the eyes

Answer 9

true

Question 10

types of cells in the 1st to recieve a light ray as it travels through the retina

Answer 10

ganglion cell

Question 11

elevation located in medial commissure of the eye that contains sudoriferous and sebaceous gland

Answer 11

lacriminal caruncle

Question 12

order of structures vibrate as sound is transmitted

Answer 12

2, 5, 4, 1, and 3

Question 13

T/F
sensory input from vestibular apparatus is transmitted to the pons, medulla oblongata and cerebellum regions of the brain

Answer 13

true

Question 14

macula lutea contains a depression called ______ which contains only one photoreceptor

Answer 14

fovea centralis

Question 15

vestibular apparatus located

Answer 15

internal ear

Question 16

T/F

ciliary processes produce the vitrous humor of the eye

Answer 16

false

Question 17

layer of dense CT that covers the entire eyeball except the cornea is called

Answer 17

sclera

Question 18

lacrimal fluid contains water, mucus, salt and bactericidal enzymes

Answer 18

lysozyme

Question 19

T/F

infection of the tarsal glands creates a pus-filled swelling called a sly

Answer 19

false

Question 20

T/F

mucous membrane lining the inner aspct of the eyelid is the bulbar conjuctiva

Answer 20

false

Question 21

wall of the utricle and saccule, the gelatinous layer of the macula that rests on the hair cells contain calcium carbonate crystals

Answer 21

otoliths

Question 22

primarily responsible for the sensation of hearing

Answer 22

spiral organ

Question 23

not of the external eat

Answer 23

auditory tube

Question 24

organs responsible for static and dynamic equilibrium are collectively known as ____ apparatus

Answer 24

vestibular