Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

DMD > Special Senses eyes and ears > Flashcards

Special Senses eyes and ears Flashcards

1
Q

Houses and safeguards the eyeball, made up of seven cranial bones that make up the walls.

A

Orbit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

roof of the orbit is

A

Frontal bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

blood supply of eyeball

A

Ophthalmic artery
(branch of the internal carotid artery)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

85% of the fibrous layer, visible as the white part of the eye, provides attachment to the extraocular muscles

A

Sclera

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

continuous with the sclera, positioned centrally at the front of the eye, CONVER, refracts incoming light to help focus light on the lens into the retina

A

Cornea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

cornea is innervated by

A

V1 (sensory)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Cornea is curved, nearsightedness, eyeball is too long, near objects are seen clearly, far objects are blurred. Corrected with concave lens.

A

MYOPIA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Cornea is too flat or eyeball is too short, farsightedness, far objects are seen clearly, near objects are blurred, corrected with convex lens.

A

Hyperopia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Irregular curvature of the cornea or lens, blurred or distorted vision at all distances, corrected by cylindrical lens

A

Astigmatism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

layer of the cornea

A

External stratified squamous epithelium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Provides nourishment to the outer layers of the retina

A

Choroid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

obstruction of the drainage of the aqueous humor, increasing the pressure in the anterior chamber. May cause the vitreous body to press against the retina affecting vision.

A

GLAUCOMA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

DOC for glaucoma

A

Pilocarpine
- 2% ophthalmic solution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

a transparent, biconvex structure held in place by a circular system zonular fibers and ciliary body. Avascular and highly elastic, controls focus for near or distant vision by a change in its shape

A

LENS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Loss of ability to undergo accommodation, occurs in the 4th decade of life when the lenses lose elasticity “related to aging”

A

Presbyopia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

lens becomes opaque due to the denaturation of crystallins impairing vision, caused by excessive exposure to UV light, trauma or secondary effects from diabetes mellitus and hypertension

A

CATARACT

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Interruption of the sympathetic nerve supply to the eye, characterized by classic triad: Miosis, Partial ptosis (drooping of the eyelid) Hemifacial Anhydrosis

A

Horner’s Syndrome

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

aperture in the center of the iris, allows fluid to pass from the anterior to posterior chamber.

A

PUPIL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Light detecting component of the eye

A

RETINA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Contains the photopigment rhodopsin, for nondiscriminative vision, used for seeing in the dark and detecting motion

A

Rod

21
Q

contains the photopigment OPSIN, for acute vision (high resolution) used for detecting colors.

A

Cone

22
Q

Large glial cells unique to the retina. Critical for retinal function, provides tropic and metabolic support for adjacent neurons

A

MULLER CELLS

23
Q

Inherited disorder that results in the defect in the development of one or more of the cone cells

A

Color Blindness

24
Q

most common color blindness

A

Red-green color blindness

25
Q

inhibitory, causes hyperpolarization of bipolar neurons preventing sending of signals to the ganglion cells.

A

Glutamate

26
Q

Thin, transparent mucosa that covers the exposed, anterior portion of the sclera, secretes mucous added to the tear film coating the epithelium and cornea

A

Conjunctiva

27
Q

also known as pink eye. inflammation of the conjunctiva due to bacterial or viral infection, also due to alleries.

A

Conjunctivitis

28
Q

Viral infection of conjunctivitis is

A

Adenovirus

29
Q

Pliable structures containing skin, muscle and conjunctiva and supporting tissue that protect the eye

A

Eyelids

30
Q

Lacrimal gland is found on

A

Superolateral portion of the eye

31
Q

sigmoid shaped tube extends from the deep part of the concha to the tympanic membrane

A

External Auditory Meatus “Auditory Canal”

32
Q

transfers sound vibrations from air to auditory ossicles, external surface is covered by epidermis, internal surface consists of a mucous membrane

A

TYMPANIC MEMBRAME “EARDRUM”
-crossed by chorda tympani

33
Q

air-filled cavity on the temporal boned lined with mucous membrane, amplifies the sound waves to the inner ear through the superior oval flow.

A

Tympanic cavity “Middle Ear”
- contains the ossicles: Malleus, incus and stapes.

34
Q

Auditory canal is part of external part of ear “external auditory meatus” , Auditory tube/Eustachian canal is part of/connection of middle ear to the nasopharynx area.

A

Auditory canal is part of external part of ear “external auditory meatus” , Auditory tube/Eustachian tube is part of/connection of middle ear to the nasopharynx area.

35
Q

equalizes the pressure of the middle ear to the external auditory meatus, normally it is collapsed maintaining slightly negative middle ear pressure.

A

Eustachian tube
- opens during swallowing and during maintaining pressure.
- route of spread of respiratory infection.
- connects the middle ear to the nasopharynx

36
Q

pulls the malleus and tympanic membrane medially, inserts to the handle of malleus, origin auditory tube.

A

Tensor Tympani

37
Q

Tensor tympani nerve

A

CN V3

38
Q

Stapedius is innervated by what CN

A

Facial Nerve

39
Q

Transmit sound from the middle ear, connective tissue membrane that separates the middle ear from the vestibule.

A

OVAL WINDOW

40
Q

Allows movement of fluid within the cochlea for sound detection, connective tissue membrane that separates the middle ear from the cochlea

A

ROUND window

41
Q

inflammation of the middle ear

A

Otitis media

42
Q

series of cavities composed of the cochlea, vestibule and semicircular canals

A

Bony labyrinth
- lined with periosteum and contains perilymph

43
Q

lies within the bony labyrinth, contains ducts and sacs: cochlear duct, and the vestibular apparatus.

A

Membranous labyrinth
- filled with endolymph rich in potassium ions

44
Q

connected to the cochlear portion of the CN VIII, houses the cochlear duct, which separates the cochlea into two fluid-filled chambers

A

Cochlea

45
Q

senses balance and body position, relay information to the central nervous system regarding head position as well as acceleration of the head via the vestibulae portion of CN VIII

A

Semicircular Ducts

46
Q

central part of the bony labyrinth

A

Vestibule

47
Q

receives the semi-circular ducts, detect movement or acceleration of the head in the horizontal plane.

A

Utricle

48
Q

Receives the cochlear duct, detect movement or acceleration of the head in the vertical plane.

A

Saccule

49
Q

hearing range

A

20-20,000 hz

DMD (24 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions