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S&F 2 test 1 > Test 1 - Histology > Flashcards

Test 1 - Histology Flashcards

1
Q

Outer layer of eye
Made of dense CT
Point of attachment for Extraocular muscles

A

Sclera

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2
Q

Layer of the eye that is the transition between the sclera and cornea

A

Limbus

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3
Q

Layer of cornea which consists of transparent and randomly oriented collagen type I fibers.
Protects against trauma and bacteria

A

Bowman’s layer

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4
Q

Layer of cornea
Collagen I and IV
Fibers thin, parallel bundles at various angles. Fibroblasts between layers. High proteoglycans

A

Stroma

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5
Q

Layer of cornea that is the thick basement membrane

A

Descemet’s membrane

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6
Q

Antibacterial enzyme contained within the lacrimal secretion.

A

Lysozyme

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7
Q

The anterior boundary of the photosensitive portion of the retina. Non-photosensitive portion of retina continues anteriorly to cover the ciliary body

A

Ora serata

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8
Q

Extends from the lens to the retina, contains gel-like substance composed of water, hyaluronic acid, and collagen fibers.

A

Vitreous chamber

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9
Q

Entry and exit point for the optic nerve and blood vessels. No photoreceptors

A

Optic disc

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10
Q

Yellow spot on the posterior retina

A

Macula lutea

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11
Q

Found between sclera and retina ((posterior portion of uveal tract))

A

Choroid

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12
Q

The pigmented vascular layer of the eyeball between the retina and the sclera

A

Choroid

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13
Q

Functions of the choroid?

A

Accomodation (change size of pupil)

Production of aqueous humor

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14
Q

Continuation of the ciliary body in front of the lens

A

Iris

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15
Q

Watery secretion formed by the epithelium of the ciliary process that supplies the cornea and lens w oxygen and nutrients

A

Aqueous humor

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16
Q

Sharpest vision is at the ?

A

Fovea

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17
Q

Blind spot in the retina?

A

Optic disc

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18
Q

Fibrous connective tissue joints in the skull

A

Sutures

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19
Q

The vestibular apparatus consists of ?

A

Utricle

Saccule

Semicircular canals

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20
Q

Glands that produce earwax?

A

Ceruminous glands

Earwax = cerumen

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21
Q

Auditory ossicles

A

Malleus, incus, stapes

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22
Q

The stapes amplifies sound by?

A

Putting pressure on the oval window

23
Q

The middle ear is lined with what type of cells?

A

Columnar to pseudostratified ciliated epithelium w/ mucous glands

24
Q

Part of ear that maintains the pressure balance between tympanic cavity and external environment

A

Middle ear

25
Q

Organ of corti is part of the inner ear that is located in the ? And is responsible for ?

A

Cochlea. Auditory sense

26
Q

Central portion of cochlea which contains the spiral ganglion?

A

Modiolus

27
Q

Bipolar neurons in the spiral ganglion make contact with hair cells where? In order to transmit sound information

A

Basilar membrane

28
Q

Movement of the __ deflects stereocilia which transmits information about position and movement

A

Cupula (of gelatinous material)

29
Q

Transition between sclera and cornea

A

Limbus

30
Q

Layer of corneum that functions to retain tears

A

Corneal epithelial

31
Q

Found between retina and sclera.

Contains melanocytes

A

Choroid

32
Q

Projection of choroid and retina

Functions to produce aqueous humor and for accomodation

A

Ciliary body and processes

33
Q

Continuation of ciliary body in front of lens

A

Iris

34
Q

Bathes the nonvascular cornea and lens and supplies them w nutrients and oxygen

A

Aqueous humor

35
Q

Controls the amount of light entering the eye.

Continuation of the ciliary body.

Anterior surface has no epithelial.
Posterior surface has pigmented cells

A

Iris

36
Q

Focuses light on the retina.

Avascular.

A

Lens

37
Q

The non-photosensitive portion of retina

A

Ora serata

38
Q

Sharpest vision is at ?

A

Fovea, in macula

39
Q

Membrane that is synthesized by the pigmented epithelial cells and attaches the retina to the choroid?

A

Bruch’s membrane

40
Q 
Maintains viability of sensory retina. 
Transports nutrients to outer portion of sensory retina.
Removes waste products
Phagocytosis of photoreceptor disks
Metabolism of retinol
A

Pigmented epithelial cells

41
Q

Synapses between the photoreceptor cells and the bipolar neurons.

A

Outer plexiform layer

42
Q

Synapse between bipolar neurons and ganglion cells

A

Inner plexiform layer

43
Q

Nuclei of rods and cones are located ?

A

In the outer nuclear layer

44
Q

Supporting glial cells

A

Muller cells

45
Q

Connects the ear to the nasopharynx. Maintains pressure balance between tympanic cavity and external environment.

A

Eustahian tube

46
Q

Air-filled. AKA tympanic cavity. Vibration from here are carried thru this section by the bony ossicles

A

Middle ear

47
Q

Central portion of cochlea which contains spiral ganglion

A

Modiolus

48
Q

Structures w perilymph?

A

Scala vestibuli and scala tympani

49
Q

Organ of corti has 1 inner hair and ___ Outer hairs?

A

3

50
Q

Macula are the vestibular structures located in the

A

Utricle and saccula

51
Q

Crista ampullaris is the vestibular structure located in the

A

Ampullae of the semicircular canals

52
Q

This structure is a ridge in the ampulla of the semicircular canals.

Has hair cells for sensory (stereocilia, single kinocilium)

Covered by cupula of gelatinous material.

Movement of cupula deflects stereocilia which transmits info about position and movement

A

Crista ampullaris

53
Q

Hair cells covered by otolithic membrane(gelatinous matrix covered w otoliths)

Stereocilia that move in response to movement of otolithic membrane and endolymph

A

Macula of saccule and utricle

S&F 2 test 1 (4 decks)

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