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ANATOMY > SPECIAL SENSES: VISION > Flashcards

SPECIAL SENSES: VISION Flashcards

0
Q

Specific division of the trigeminal nerve that innervates the conjunctiva.

A. Mandibular
B. Opthalmic
C. Maxillary
D. Facial

A

B. Opthalmic

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1
Q

The vascular supply of the conjunctiva.

A

Anterior ciliary artery

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2
Q

Part of the conjunctiva that covers the sclera.

A

Bulbar conjunctiva

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3
Q

Lines the inner aspect of the eyelids.

A

Palpebral conjunctiva

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4
Q

TRUE or FALSE: Aside from covering the sclera, episclera provides nourishment for it.

A

TRUE

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5
Q
  1. The sclera is a vascular thick coat of the eye. 2. It is continuous with the dural sheath of the optic nerve posteriorly and cornea anteriorly.

A. 1 and 2 are both true.
B. 1 and 2 are both false.
C. 1 is true and 2 is false.
D. 1 is false and 2 is true.

A

D. 1 is false and 2 is true.

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6
Q

Which is paired correctly?

A. Corneal Stroma: type IV collagen
B. Descemet’s membrane: type IV collagen
C. Descemet’s membrane: type I collagen
D. None of the above.

A

B. Descemet’s membrane: type IV collagen

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7
Q

Layer of the cornea capable of regeneration.

A. Bowman’s layer
B. Endothelium
C. Corneal epithelium
D. Corneal stroma

A

C. Corneal epithelium

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8
Q

A condition where there is a whitening of the limbus due to old age.

A

Arcus senilis

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9
Q

The space between the cornea and iris.

A

Anterior Chamber

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10
Q

Blood supply of the iris.

A

Major circle of the iris

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11
Q

This structure of the eye adjusts the amount of light entering it.

A. Choroid
B. Sclera
C. Cornea
D. Pupil

A

D. Pupil

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12
Q

Pupillary constriction is due to the parasympathetic activity of which cranial nerve?

A

CN III (Oculomotor)

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13
Q

Structure of the eye that produces aqueous humor.

A

Ciliary body

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14
Q

This principle allows eye to focus at near objects.

A

Accomodation

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15
Q

The structure of the eye that provides blood supply to the outer retinal layers.

A. Iris
B. Limbus
C. Choroid
D. Ciliary body

A

C. Choroid

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16
Q

The lens is suspended in place by this structure.

A

Zonule fibers

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17
Q

Narrow space behind the iris and in front of the zonule fibers.

A

Posterior chamber

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18
Q

The following are TRUE of the vitreous cavity EXCEPT:

A. 98-99% water
B. Vascular
C. Contains collagen
D. Contains hyaluronic acid

A

B. Vascular

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19
Q

Supplies the inner 1/3 of the retina.

A

Central retinal artery

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20
Q

Area of the retina being supplied by the choroid.

A

Outer 2/3 of the retina

21
Q

Oval depression in the center of the macula.

A

Fovea

22
Q

Responsible for the central vision.

A

Macula

23
Q

The following are part of the circle of Zinn-haller EXCEPT:

A. Pial vasculature
B. Short PCA
C. Choroidal circulation
D. Anterior ciliary artery

A

D. Anterior ciliary artery

24
Q

The optic nerve synapses at the:

A. Medial geniculate nucleus
B. Lateral geniculate nucleus
C. VPLN
D. VPMN

A

B. Lateral geniculate nucleus

25
Q

Optic nerve head.

A. Intra-orbital
B. Intra-ocular
C. Intra-canalicular
D. Intra-cranial

A

B. Intra-ocular

26
Q

Fuses at the apex of the orbit with periosteum and annulus of Zinn

A. Intra-orbital
B. Intra-ocular
C. Intra-canalicular
D. Intra-cranial

A

A. Intra-orbital

27
Q

Just before it becomes the optic chiasm.

A. Intra-orbital
B. Intra-ocular
C. Intra-canalicular
D. Intra-cranial

A

D. Intra-cranial

28
Q

Firmly anchored to the bone (optic canal).

A. Intra-orbital
B. Intra-ocular
C. Intra-canalicular
D. Intra-cranial

A

C. Intra-canalicular

29
Q

The optic chiasm is suspended above which structure.

A

Sella turcica

30
Q

Composed of lateral fibers from the ipsilateral optic nerve and medial fibers from the contralateral optic nerve.

A. Lateral Geniculate Body
B. Optic Chiasm
C. Optic Tract
D. Optic Radiation

A

C. Optic Tract

31
Q

Inferior fibers that pass through the temporal lobe looping around the inferior horn of the lateral ventricle.

A

Meyer’s loop

32
Q

The optic canal is found in which specific part of the roof of the orbit.

A

Lesser wing of the sphenoid

33
Q

Serves as the attachment of the cartilaginous pulley for the superior oblique muscle.

A

Trochlear fossa

34
Q

Fossa present in the orbital plate of the frontal bone.

A

Lacrimal gland fossa

35
Q

The following are what comprises the medial orbital wall EXCEPT:

A. Maxillary bone
B. Lacrimal bone
C. Lesser wing of the sphenoid
D. Greater wing of the sphenoid

A

D. Greater wing of the sphenoid

36
Q

Paper thin portion of the medial wall is termed as.

A

Lamina papyracea

37
Q

The zygomatic bone and the greater wing of the sphenoid forms which wall of the orbit.

A

Lateral orbital wall

38
Q

These bones make up the floor of the orbit EXCEPT:

A. Palatine bone
B. Maxillary bone
C. Orbital plate of Zygomatic bone
D. Ethmoidal bone

A

D. Ethmoidal bone

39
Q

Foramen found in between the greater and lesser wings of the sphenoid.

A

Superior orbital fissure

40
Q

In the orbital apex, the following are medial or within the Annulus of Zinn EXCEPT:

A. Nasociliary branch of CN V
B. Abducens nerve (CN VI)
C. Trochlear nerve (CN IV)
D. Superior ophthalmic vein

A

C. Trochlear nerve (CN IV)

41
Q

The maxillary and pterygoid parts of CN V passes through..

A

Inferior orbital fissure

42
Q

The first major branch of the intracranial ICA.

A

Ophthalmic artery

43
Q

Supplies the anterior segment of the eye.

A

Long posterior ciliary arteries

44
Q

Short posterior ciliary arteries supplies which segment of the eye.

A

Optic nerve, and posterior segment of the eye.

45
Q

Dimensions of the interpalpebral fissure in adults.

A

Approx. 27 mm long and 8-11 mm wide

46
Q

TRUE or FALSE: The subcutaneous connective tissue of the eyelid contains no fat.

A

TRUE

47
Q

Attaches to the anterior surface of the levator muscle.

A

Orbital septum

48
Q

Produces the eye fold.

A

Levator aponeurosis

49
Q

The superior tarsal muscle is innervated by the superior division of which cranial nerve.

A

CN III

50
Q

Analogous to the nictating membrane in lower animals.

A

Plicae semilunaris

ANATOMY (5 decks)

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