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Gross Anatomy Exam 4 > Eyes > Flashcards

Flashcards in Eyes Deck (26):
1

4 parts of conjunctiva

1. Palpebral conjunctiva
2. Bulbar conjunctiva
3. Fornix
4. Conjunctival sac

2

Bulbar conjunctiva covers?

Sclera

3

Conjunctival sac

Potential cavity formed when eye is closed

4

Plica semilunaris

Fold of palpebral conjunctiva and cartilage protruding from medial angle of eye

5

Eyelids are called?

Superior and inferior palpebrae

6

Where eyelids meet is called?

Medial and lateral commissures (or canthi)

7

Lacrimal gland produces ___% of tears.

Gland of 3rd eyelid produces ___%

Lacrimal - 70%

Gland of 3rd eyelid - 30%

8

Ocular adnexa

Things attached to eye

9

Boundaries of orbit

Medial: frontal, presphenoid and lacrimal bb.

Ventral: zygomatic sg. and pterygoid mm.

Caudodorsal: temporal m.

10

Orbital margin

Osseous margin formed by frontal, larimal and zygomatic bb. + orbital lig.

11

Periorbita

Sheath of CT and smooth m. which encloses orbital contents

12

Lacrimal gland drains into?

1. Conjunctival sac
2. Superior and inferior lacrimal puncta
3. Lacrimal canaliculi
4. Lacrimal sac
5. Nasolacrimal duct
5. Nasal vestibule

13

Parts of external fibrous coat

1. Cornea
2. Sclera
3. Limbus

14

External fibrous coat is the insertion for?

Extrinsic ocular mm.

15

Parts of uvea

1. Choroid
2. Ciliary body
3. Iris

16

Choroid

Posterior portion of uvea lining internal surface of sclera including tapetum lucidum

17

Ciliary body is?

Thickened mound at limbus

18

Ciliary body produces?

Aqueous humor

19

Contraction of ciliar m. causes?

Relaxed zonular fibers → lens becomes more spherical (near vision)

20

Aqueous humor production and resorption

1. Ciliary body →
2. Posterior chamber →
3. Pupil →
4. Anterior chamber →
5. Iridocorneal angle →
6. Scleral venous plexus

21

Internal nervous coat is?

Retina

22

Vitreous chamber

Posterior to lens, filled with vitreous-body

23

Aqueous humor is containd in?

Posterior and anterior chambers

24

Trochlear n. innervates?

Dorsal oblique m.

25

Abducent n. innervates?

Lateral rectus m.

26

Most mm. of eye are innervated by?

Occulomotor n.