Anatomy

Question 1

What forms the olives?

Answer 1

Inferior olivary nuclei

Question 2

Where does trigeminal lemaniscus ends ?

Answer 2

Ventral posteromedial nucleus of T

Question 3

Sensory root of facial is between ?

Answer 3

It’s motor root and vestibulocochlear

Question 4

Which is medial gracille or cuneatus?

Answer 4

Gracille

Question 5

How does the corticospinal fibers decussate in direction?

Answer 5

Backwards and laterally

Question 6

What provides attachments to eyeball muscles?

Answer 6

Sclera

Question 7

What nourish the cornea ?

Answer 7

Peripheral capillary bed
Aqueous humor
Tears
Oxygen from air

Question 8

Layers of cornea

Answer 8

Stratified squamous non keratinised epithelium
Bowmans membrane
Corneal stroma rich in collagen and fibroblasts

Question 9

Afferent and efferent of corneal reflex

Answer 9

Nasociliarly of ophthalmic division of trigeminal

Facial to orbucluris oculi

Question 10

Subconjuctival hemorrhage results from?

Answer 10

Rupture of small subconjuctival capillaries

Question 11

What supplies the choroid?

Answer 11

Six short posterior ciliary arteries and 2 long posterior

Question 12

What controls the light input to retina?

Answer 12

The iris by radial dilators and peripheral sphinters

Question 13

Parasympathetic effect on iris?

Answer 13

Contracts the sphincter pupilla allowing less light through

Question 14

What can change the convecity of lens?

Answer 14

Ciliary body supplied by parasympathetic of ovulomotor

Question 15

Canal of schlemn is located at

Answer 15

junction of cornea and iris

Question 16

Ciliary and iridial part of retina are anterior continuations of?

Answer 16

Pigmented layer of optic retina

Question 17

RPE cuboidal layer rich in

Answer 17

Melanin

Question 18

What forms the retinal blood barrier?

Answer 18

RPE and bruch membrane

Question 19

Embolous to which artery causes total blindness and why?

Answer 19

Central artery

End artery

Question 20

What anchor the lens to the ciliary body?

Answer 20

Zonular fibers

Question 21

Rupture of which artery causes pulsating exophthalmos

Answer 21

ICA in cavernous sinus

Question 22

Aneurysm of ICA can compress what and cause what ?

Answer 22

Optic. Hiasm

Causing uni/bilateral nasal heminanopoa

Question 23

Lateral medullary syndrome caused by which vessel?

Answer 23

PICA from vertebral 👏🏼👏🏼

Question 24

Magnocellular neurons relations to posterior pituitary ?

Answer 24

Found inf paraventricular nuclei and supraoptic send axons directly to posterior pituitary to release ADH and oxytocin

Question 25

Kluver bucy syndrome which shows loss of fear loss of ability to learn Usual agnosia related to?

Answer 25

Limbic system

Question 26

Amygdala mostly related to ?

Answer 26

Fear

Question 27

Components of fear production include?

Answer 27

Lateral hypothalamus | Paraventricular controls release of stress hormone

Question 28

Why increase in oral activity in kluver bucy syndrome?

Answer 28

Loss of visual association area

Question 29

Hippocampus formation is an expansion of which lobe?

Answer 29

Medial temporal lobe

Question 30

Loops between neurons in hippocampus form ?

Answer 30

Schaffer collateral and mossy fibers