chapter 10 Flashcards
1
Q
parts of the eye
A
- iris
- vitreous body
- cornea
- aqueous humor
- retina
- conjunctiva
- optic nerve
- lens
- sclera
- optic disk
- lacrimal ducts
- rods and cones
- choroid
2
Q
governs the size of the pupil
A
iris
3
Q
- soft and jelly-like
- shapes the eye
A
vitreous body
4
Q
clear portion of the sclera that covers the anterior of the eye
A
cornea
5
Q
- watery fluid
- maintains corneas
- constantly produced and drained
A
aqueous humor
6
Q
- deepest layer of the tunic
- is the eyes actual receptor layer
- contains photoreceptors
A
retina
7
Q
- lines the inner surface of the eyelids
- folds back to cover the visible portion of the white of the eye
A
conjunctiva
8
Q
- carries visual impulses from retina to brain
A
optic nerve
9
Q
- adjusts to help focus the light
A
lens
10
Q
- the whites of the eye
- the fibrous tunic
- the outermost tunic
A
sclera
11
Q
- no images form in retina yet
- known as the blind spot
A
optic disk
12
Q
helps drain tears made by lacrimal glands
A
lacrimal ducts
13
Q
- in your retina
- light sensitive cells
- generate nerve impulses
A
rods and cones
14
Q
- middle tunic
- vascular
- contains melanin
A
choroid
15
Q
parts of the ear
A
- ossicles
- pinna or auricle
- eustachian tube
- cochlea
- tympanic membrane
- malleus
- incus
- stapes
- vestibular
- semicircular canals
- Organ of Corti
16
Q
3 small bones in the middle ear
A
ossicles
17
Q
visible and its external portion of the ear
A
pinna or auricle
18
Q
connects the middle ear cavity and pharynx
A
eustachian tube
19
Q
coil like snail shell in the inner ear and contains organ of hearing (corti)
A
cochlea
20
Q
separates outer ear from the middle ear
A
tympanic membrane
21
Q
- first bone (ossicle) of the ear
- in contact with eardrum
- hammer shaped
A
malleus
22
Q
- shaped live anvil
- helps amplify sound
A
incus
23
Q
- innermost ossicle
- in contact with the oval window of the inner ear
- shaped like a stirrup
A
stapes
24
Q
- consists of 2 chambers
- contain receptors for equilibrium
A
vestibular
25
- areas for receptors for equilibrium
- 3 tubes
semicircular canals
26
- long strip of hair cells
- known as spiral organ
Organ of Corti
27
the special senses
- taste
- smell
- sight
- equilibrium
28
the general senses
- touch
- pressure
- temperature
- position
- pain
29
neurons embedded in the epithelium of the nasal cavity’s superior region; neurons react with smell chemicals; involved with sense of smell
Olfactory epithelium
30
parts of the tongue and which area are sensitive to sweet, sour, salty, bitter, and umami
- located on a mainly superior surface on tongue
- enclosed on rained projections called papillae
31
the function of the Vestibularcochlea nerve and what cranial nerve is it
- Cranial nerve 8
- receptors for equilibrium
- balance
- transmits sensory information for balance
- from inner ear to brain
32
the purpose of analgesics
relieve pain by blocking the sensation of pain within the body; more of a pain control
33
sensory adaptation
the way the body adjusts to different stimuli
34
oto-
ear
35
opthalmo-
eye
36
scope-
instrument to examine
37
propri/o
own
38
esthesia
sensation
39
alges/i
pain
40
the 4 structures that protect the eyes and describe the contribution of each
- skull
- eyelid and eyebrow
- tears
- conjunctiva
41
skull (eye orbit)
- protects eye
- bony orbit protects the posterior portion
42
eyelid and eyebrow
- protects the anterior portion of the eye
- keeps foreign substances out of eye
43
tears
lubricates eye
44
conjunctiva
lines eyelids and part of sclera
