LB 4-16

Question 1

Curved thick hair that keep sweat out of eyes

Answer 1

eyebrows

Question 2

Hairs that extend from margin of eyelids, prevent objects from contacting eye

Answer 2

eyelashes

Question 3

Function of tears

Answer 3

windshield fluid on your eyes

Question 4

Fluid emitted by the lacrimal gland

Answer 4

lacrimal fluid

Question 5

Path of lacrimal fluid

Answer 5

Lacrimal gland > surface of eye > lacrimal sac > nasolacrimal duct

Question 6

Muscles that cause pupil to constrict

Answer 6

circular muscles (sphincter muscles)

Question 7

Muscles that cause pupil to dilate

Answer 7

radiant (dilator) muscles

Question 8

Disorder characterized by increased pressure in the aqueous humor

Answer 8

glaucoma

Question 9

Olfactory nerve projects into the nasal cavity

Answer 9

Olfactory tract widens into olfactory bulb, olfactory nerve branches off and travels through cribiform plate to project into nasal cavity

Question 10

Specialized receptors for vision; detect light, color and movement

Answer 10

Photoreceptors

Question 11

Sebaceous glands within the eyelid; produce oily substance to prevent eyes from sticking to eyelids

Answer 11

Tarsal glands

Question 12

Space between eyelids; size based on how open eyes are

Answer 12

Palpebral fissure

Question 13

Pink, fleshy tissue in medial corner of eye that produces small amount of oil and sweat; forms grit in medial canthus after sleeping

Answer 13

lacrimal carbuncle

Question 14

Conjunctiva that attaches to eyeball

Answer 14

Ocular conjuctiva

Question 15

Conjunctiva that attaches to eyelid

Answer 15

Palpebral conjuctiva

Question 16

Group of structures that produce, collect and drain lacrimal fluid

Answer 16

Lacrimal apparatus

Question 17

Superior, lateral glands that produces lacrimal fluid

Answer 17

Lacrimal gland

Question 18

Structures that drain lacrimal fluid from lacrimal gland

Answer 18

Lacrimal gland ducts

Question 19

Structures that drain lacrimal fluid from eye into medial lacrimal sac

Answer 19

Superior and inferior lacrimal canals

Question 20

Collects lacrimal fluid from eye; superior/lateral to nasal cavity

Answer 20

Lacrimal sac

Question 21

Receives fluid from lacrimal sac; drains fluid into nasal cavity

Answer 21

Nasolacrimal duct

Question 22

Inflammation and reddening of the conjunctiva “pink eye” due to viral infection, bacterial infections, allergens, chemicals, irritants.

Answer 22

Conjuctivitis

Question 23

3 principal layers of the eye

Answer 23

Fibrous tunic, vascular tunic and neural tunic.

Question 24

Tough connective tissue layer of the eye

Answer 24

Fibrous tunic

Question 25

Blood, immune tissues, interior muscles layer of the eye

Answer 25

Vascular tunic

Question 26

Nervous tissue layer of the eye

Answer 26

Neural tunic

Question 27

What do the ciliary processes secrete

Answer 27

Aqueous humor

Question 28

Location on the retina called the optic disc where ganglion axons form the optic nerve and exit eye toward brain; no photoreceptors present to detect vision.

Answer 28

blind spot

Question 29

Outer pigmented and inner neural layers separate due to head trauma; symptoms of flashes of light, decreased vision.

Answer 29

Detached retina

Question 30

Deterioration of macula lutes, often due to diabetes, hypertension or eye trauma; diminished color perception, loss of visual clarity in center of visual field.

Answer 30

Macular degeneration

Question 31

Small opacities within the lens, usually as a result of aging; difficulty focusing, reduced visual clarity and reduced color intensity

Answer 31

Cataracts

Question 32

Increased intraocular pressure due to build up of aqueous humor

Answer 32

Glaucoma

Question 33

Part of the ear for hearing

Answer 33

Cochlea

Question 34

Part of the ear for equilibrium; detects gravity and acceleration of equilibrium.

Answer 34

Vestibule

Question 35

Part of the ear that detects rotation of equilibrium; 3 "rings" called superior, posterior, and lateral canals; ampullae at base of each canal contains receptor cells

Answer 35

Semicircular canals

Question 36

Parts of the ear

Answer 36

External, middle and inner ear

Question 37

Glands that produce ear wax

Answer 37

Ceruminous glands

Question 38

Made up of 3 bones

Answer 38

Auditory ossicles

Question 39

Part of ear that attaches to stapes

Answer 39

Stapedius muscle

Question 40

Part of ear that attaches to malleus

Answer 40

Tensor tympani muscle

Question 41

Part of ear that is the bony exterior chamber of the inner ear

Answer 41

Bony labyrinth

Question 42

Part of ear that is the interior fluid filled chamber of the inner ear

Answer 42

Membranous labyrinth

Question 43

Fluid that separates the bony and membranous labyrinth

Answer 43

Perilymph

Question 44

Central part of the bony labyrinth in the inner ear

Answer 44

vestibule

Question 45

Made up of utricle, saccule, semicircular canals and vestibular portion of cranial nerve 8

Answer 45

Vestibular complex

Question 46

Houses the organ of Corti, structures for hearing

Answer 46

Cochlear duct

Question 47

How is sound transmitted?

Answer 47

Basilar membrane