Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Anatomy > Lecture 24 - Orbit I > Flashcards

Lecture 24 - Orbit I Flashcards

1
Q

What is the ligament that forms the lateral portion of the oribit?

A

Postorbital ligament

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

What are the four regions of the orbit?

A

Roof, lateral wall, medial wall, and floor

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

What are the components of the orbit??

A

Zygomatic, lacrimial, frontal, maxilla, and palatine

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

What is the floor of the orbit made of?

A

Zygomatic, maxilla, and palatine

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

What are the supportive connective tissues of the eyelids?

A

Orbital septum and Tarsus

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

What is the orbital septum?

A

Connective tissue sheet

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

What is the tarsus?

A

A Fibrous structure

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

What are embedded into the tarsal plates?

A

Tarsal glands

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

What are tarsal glands?

A

Modified sebaceous glands that secrete only oily substance that increase the viscosity of tears and decrease tear evaporation

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

What is a chalazion?

A

Inflammation/blockage of the tarsal/meibomian gland

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

What is conjunctiva?

A

Non-keratinized, stratified squamous epithelium with goblet cells

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

What is within the conjunctival sac?

A

Bulbar and palpebral conjunctiva

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

What is the palpebral conjunctiva made of?

A

Superior and inferior fornices

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

What is conjuncitivitis?

A

Common, Primarily infectious conjunctivitis caused by different bacteria, viruses, mycoplasma, fungi, and parasites

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

What is the canthi?

A

Meeting sits of the upper and lower eyelids

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

What are the palpebral commissures?

A

CT of the corner of the eyes

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

What are the muscles involved in moving the eyelids?

A

Orbicularis oculi and levator palebrae superioris m.

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

What nerve innervates the orbicularis oculi?

A

CN VII

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

What nerve innervates the levator palebrae superioris m.?

A

CN III

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

What is the path of lacrimal gland?

A

Lacrimal gland - lacrimal punctum - lacrimal canaliculi - nasolacrimal duct

21
Q

What is the major component of the tear film from goblet cells?

A

Glycoprotein

22
Q

What part of the tears do the tarsal glands make?

A

oily component

23
Q

What is the tenon’s capsule?

A

Membrane pierced by ciliary structures and muscle tendons, makes the episcleral space

24
Q

What is within the episcleral space?

25
What are the three "layers" of the eye?
Sclera - choroid - ora serrata
26
What is the choroid?
Layer containing blood vessel
27
What is within the anterior layer of the iris?
Containing constrictor pupillae
28
What nervous system that acts on the anterior layer of the iris?
PNS
29
What is within the ciliary body?
Containing the ciliary muscles
30
What nervous system that acts on the ciliary muscle?
PNS
31
What is the ora serrata?
Junction between the retina and ciliary body
32
What is contained within the posterior layer of the iris?
Dilator pupillae m.
33
What nervous system acts on the dilator pupillae m.?
Sympathetic
34
What is the nerve layers of the eye, starting most rostral?
nerve fiber - ganglion cell - inner plexiform - inner nuclear - outer plexiform - outer nuclear
35
What is the canal of schlemm?
Drains aqueous humor from anterior chamber to venous system
36
What is contained within the retrolental?
Vitreous body
37
What is contained within the prelental?
Anterior and posterior chambers, aqueous humor
38
What is the function of the suspensory ligaments of Zinn?
Tension on or relaxtion of change shape of the lens
39
What fibers are above the iris?
Zonular fibers
40
What is the state of the ciliary muscle without nervous stimulation?
Relaxed
41
What is the state of the zonular fibers without nervous stimulation?
Under tension
42
What is the state of the lens without nervous stimulation?
Stretched thin to refract light
43
What circumstance needs the lens to be stretched thin?
Distant vision
44
What is the state of the ciliary muscle with nervous stimulation?
Ciliary muscle contracts
45
What is the state of the zonular fibers with nervous stimulation?
Relax
46
What is the state of the lens with nervous stimulation?
Internal tension causes the lens to become more spherical to refract light
47
Why would you can your lens to be spherical?
Near vision
48
What nerve is active in the eye with bright light?
Ciliary ganglion
49
What CN works to constrict the pupil?
CN III

Anatomy (44 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions