Lecture 1: Anatomy Flashcards

1
Q

What area lies between the cornea and iris?

A

Anterior chamber

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2
Q

What area lies between iris and vitreous chamber?

A

Posterior chamber

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3
Q

What forms the border between the anterior and posterior chambers?

A

iris

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4
Q

Where in the eye is there NO diffraction?

A

Pupil

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5
Q

What is the most posterior chamber in the eye?

A

Vitreous chamber

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6
Q

What does the vitreous chamber contain?

A

retina + vitreous gel

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7
Q

Optic disc is aka as the “blind spot”…why?

A

it does not contain rods/cones

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8
Q

What is at the center of the macula?

A

fovea

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9
Q

Where is the highest visual acuity located at?

A

fovea

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10
Q

What cells is the optic nerve derived from? And if diseased… it could lead to what demyelinating disorder?

A

Oligodendrocytes

MS

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11
Q

What cells make up the peripheral cranial nerves?

A

Schwann cells

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12
Q

What are the two layers of the retina?

A

Retinal pigmented epithelium

Neural retina

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13
Q

Which photoreceptors perceives BRIGHT light? and what colors?

A

Cons; blue, red green

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14
Q

Which photoreceptors perceives DIM light? and what colors?

A

Rods: grayish purple

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15
Q

Which nucleus serves as “master clock of brain”?

A

Suprachiasmic nucleus (hypothalamus)

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16
Q

Which nucleus deals with pupillary light reflexes?

A

Pre-tectal nucleus

17
Q

Which nucleus deals with visual reflexes?

A

Supercolliculus of the midbrain

18
Q

Which nucleus relays information on to the cerebral cortex?

A

Lateral geniculate nucleus

19
Q

upper retinal fields correspond to __ visual field

A

UPPER RETINA –> INFERIOR Visual field

20
Q

lower retinal fields correspond to __ visual field

A

LOWER RETINA –> SUPERIOR Visual field

21
Q

Damage to the nasal retina would produce what type of vision?

A

Tunnel vision –> loss of all lateral visual fields

22
Q

Nasal retina fibers correspond to what visual space?

A

Nasal retina –> LATERAL visual space

23
Q

Temporal retina fibers correspond to what visual space?

A

Temporal retina –> MEDIAL visual space

24
Q

where is the cuneus gyrus located?

A

Occipital lobe (extends towards parietal lobe)

25
Q

where is the lingual gyrus located?

A

Occipital lobe (extends towards temporal lobe)

26
Q

What information does the cuneus gyrus relay to the primary visual cortex?

A

INFERIOR visual fields/ SUPERIOR retinal fields

27
Q

What information does the lingual gyrus relay to the primary visual cortex?

A

SUPERIOR visual fields/ INFERIOR retinal fields

28
Q

Damage to the cuneus gyrus will cause:

A

CONTRALATERAL INFERIOR Quadrantanopsia

29
Q

Damage to the lingual gyrus will cause:

A

CONTRALATERAL SUPERIOR Quadrantanopsia

30
Q

V3,V4,V5 are located in what lobe and correspond to what visual information?

A

all are int he OCCIPITAL lobe
V3–> Form
V4 –> Color
V5 –> Motion

31
Q

Damage to V5 will cause?

A

visual motion agnosia

32
Q

if the right V5 was damages, where will you have issues?

A

RIGHT V5 damage –> loss of motion detection is LEFT visual fields

33
Q

Damage in V4 will cause?

A

color agnosia

34
Q

V3/V4 are supplied by what artery?

A

POSTERIOR cerebral artery

35
Q

V5 is supplied by what artery?

A

MIDDLE cerebral artery