GENERAL HISTOLOGY

EXCRETORY SYSTEM

CORTEX

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Blindness could result from damage to which lobe of the brain?
A
temporal lobe
B
frontal lobe
C
parietal lobe
D
occipital lobe
Explanation: 

Detailed explanation-1: -Cortical blindness is an important cause of blindness due to damage to the occipital cortex. It is commonly associated with posterior circulation stroke.

Detailed explanation-2: -Damage to the occipital lobe can include: Visual illusions-inaccurately seeing objects. Word blindness-inability to recognise words. Difficulty in recognizing drawn objects. Inability to recognize the movement of an object (Movement Agnosia)

Detailed explanation-3: -The occipital lobe is primarily responsible for visual processing. It contains the primary and association visual cortex.

Detailed explanation-4: -Abstract. Cortical colour blindness is caused by brain damage to the ventro-medial occipital and temporal lobes. A possible explanation is that the pathway responsible for transmitting information about wavelength and its subsequent elaboration as colour has been destroyed at the cortical level.

There is 1 question to complete.