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Flashcards in Eyes Deck (23):
1

Abducted and Depressed

Medial Rectus
Superior Rectus
Inferior rectus
Inferior Oblique

2

Action of Medical Rectus

Adduction
CN III

3

Extorted

Superior Oblique
CN IV

4

Adducted

Lateral Rectus
CN VI

5

Action of Superior Rectus

Upward and Medially
CN III

6

Action of Inferior Rectus

Downward and Medially
CN III

7

Action of Inferior Oblique

Upward and Laterally
CN III

8

Action of Superior Oblique

Downward and Laterally
CN IV

9

Action of Lateral Rectus

Abduction
CN VI

10

Loss of CN 3 will lead to

Abduction and Depression of Eyes

11

Loss of Levator Palpebrae Superioris will lead to

Ptosis

12

Mydriasis is caused by loss of

Sphincter papillae and ciliary muscle

13

Location of CN 3 nucleus and nerve

ventral part of the periaqueductal gray of the midbrain at the level of SUPERIOR COLLICULUS

14

What CN is damaged in Internal Strabismus?

Abducens

15

Location of CN 4 nucleus and nerve

ventral part of the periaqueductal gray of the midbrain at the level of INFERIOR COLLICULUS

16

Location of CN 6 nucleus and nerve

beneath FACIAL coliculus in the floor of the 4th ventricle in the caudal pons

17

What causes esotropia?

Medial Deviation and paralysis of CN 6

18

Lesion at Right optic nerve

Blindness of Right eye

19

Lesion at Optic Chiasm

Bitemporal Hemianopsia

20

Lesion at Right angle of chiasm

Right Nasal Heimanopsia

21

Lesion at Right optic tract

Left Homonymous Hemianopsia

22

Development of Anterior Pituitary Gland

Hypophysial Pouch/ Rathke
Upgrowth from ROOF of primitive mouth

23

Development of Posterio Pituitary Gland

Neurohypophysial bud
Downgrowth from the fore brain