Anatomy Flashcards

1
Q

Where is the meibomian gland located?

A

Embedded within the tarsal plate

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

The mucin layer is secreted by which cells?

A

goblet cells located in the conjunctival epithelium and is also the layer adherent to the glycoalyx

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

Where is the inferior orbital fissure located?

A

floor & lateral wall

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

Which muscle is innervated by the superior division of the oculomotor nerve?

A

Superior rectus

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

Superior oblique is innervated by which nerve?

A

trochlear

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

The orbicular oculi is innervated by which nerve?

A

facial

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

The lateral rectus is innervated by which nerve?

A

abducen nerve

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

Which corneal layer can neither be replaced nor repaired after birth?

A

Bowman’s layer & endothelium

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

Which layer of the cornea thins with age?

A

endothelium

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

The border of the limbus layer is the termination of which 2 layers?

A

Bowman’s layer and Descemets membrane

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

What is the caruncle?

A

modified skin tissue & goblet cells located at the medial canthus

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

Patellar fossa

A

Site where the lens is located at the anterior vitreal face

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

Where is the lacrimal gland located?

A

Lacrimal fossa - in the orbital portion of the frontal bone

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

The spaces between the processes are called ?

A

Valleys of Kuhnt

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

What produces the lens capsule?

A

epithelium of the crystalline lens

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

Which layer of the lens contains the oldest lens fibers?

A

The embryonic nucleus - it is formed by the primary lens fibers from the posterior lens epithelium

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

In the anterior chamber angle, where is Schwalbe’s ring located?

A

Termination of Descemet’s membrane

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

What structure separates the ciliary portion from the pupillary portion of the iris

A

Collarette

19
Q

The major circle of the iris is located where?

A

Ciliary body stroma

20
Q

Pupillary ruff

A

borders the pupillary portion of the iris

21
Q

Iris root

A

most posterior portion of the ciliary portion of the iris

22
Q

Crypts of fuchs

A

located on both sides of the collarette and therefore are in both portions of the iris

23
Q

The posterior chamber is bounded anteriorly by the

A

posterior iris epithelium

24
Q

Which glands contribute to the lipid layer?

A

Moll, Zeiss, and Meibomian

25
Q

Which glands are responsible for the aqueous portion of the tears?

A

Krause and Wolfring

26
Q

Holocrine glands

A

Zeiss and meibomian

27
Q

Muller is derived from?

A

Levator

28
Q

Where is the levator derived from?

A

The lesser wing

29
Q

What are the 2 portions of the orbicularis ocular

What are examples of both?

A

Palpebral (quick blink) & orbital (forced closure)

Palpebral = myokymia (1 muscle 1 eye)

Orbital = FORCED = Belpharospasms ( 3 muscle - orbital portion of orbicularis oculi, procerus, corrugator).

30
Q

4 Eyelid cancers (least to most likely to metastasize)

A

Basal cell carcinoma
Squamous cell carcinoma
Sebaceous gland carcinoma
Malignant Melanoma

31
Q

What type of UV light is most likely to cause cancer?

A

UV B

NOT UVC - most dangerous but blocked by the atmosphere, therefore not the most common cause of cancer

32
Q

Basal cell carcinoma signs

A

Early pearly
Telangiectasia
Stratum spinosum is affected

33
Q

Telangiectasia is associated w/ which conditions?

A

Coats dz
Acne Rosacea
Basal cell carcinoma

34
Q

Squamous cell carcinoma

A

scaly eyelid lesion = precursor for actinic keratosis
Early signs in conjunctiva is CIN

35
Q

Sebaceous gland carcinoma

A

Affects zeis and meibomian

36
Q

What conditions affect the sebacous glands?

A

Sebaceous gland carcinoma
Acne rosacea

37
Q

Malignant Melanoma

A

LEAST common
Remember ABCD
Depth of the lesion is the most important

38
Q

Which CN innervates the levator

A

CN III = 15 mm of lift

39
Q

Describe a CN palsy

A

Eye will be down & out

40
Q

What will confirm a blown pupil CN III palsy?

A

1% pilo

if the pilo does NOT do anything, probably a clinically induced dilated pupil (Ex. visine)

41
Q

Mueller’s muscle proves how many mm of lift?

A

1-3mm
Sympathetic nervous system

“Mueller MAINTAINS the eye being open”

42
Q

2 signs of Horner’s in kids

A

Heterochromia and Hyperemia

43
Q

All blinking requires cortical input EXCEPT

A

dazzle