Functional Areas Of Cerebral Hemisphere: Occipital Lobe

Question 1

Occipital lobe

Answer 1

1. Visual sensory area (17)
2. Visual association area (18 and 19)
3. Occipital eye field area

Question 2

Visual sensory area 17 site

Answer 2

Lies in lips of Postcalcarine sulcus (Cuneus and lingual gyri) on medial surface of occipital lobe

Question 3

Visual sensory area 17 function

Answer 3

Receiving visual radiation from lateral geniculate body (perception)

Question 4

Visual sensory area 17 lesion

Answer 4

Contralateral homonymous hemianopia with macular sparing

Question 5

Visual association area 18 and 19 site

Answer 5

Around visual sensory area in Cuneus and lingual gyri on medial surface of occipital lobe

Question 6

Visual association area 18 and 19 function

Answer 6

Giving meaning of pictures seen and color vision

Question 7

Visual association area 18 and 19 lesion

Answer 7

1. Leads to visual agnosia (patient can see objects but cannot identify them)
2. Color blindness

Question 8

Occipital eye field area site

Answer 8

Lies in secondary area in humans

Question 9

Occipital eye field area functions

Answer 9

1. Conjugate eyes deviation especially to opposite side which is believed to be reflex
2. Associated with eye movement ps when following an object