Brodmann’s Areas Quiz 2

Question 1

Area 41

Answer 1

Primary auditory cortex
Location: temporal lobe
Function: detect sound
Blood Supply: Inferior MCA

Question 2

Lesion to area 41

Answer 2

Bilateral lesion - central deafness or cortical deafness

Question 3

Area 42

Answer 3

Secondary auditory cortex
Location: temporal lobe
Function: recognize different sound
Blood Supply: Inferior MCA

Question 4

Lesion to area 42

Answer 4

Auditory agnosia - unable to recognize sounds (music, frequencies, pitches)

Question 5

posterior area 22

Answer 5

Auditory ASSOCIATION Cortex
Non-dominant hemisphere (R)
Location: right hemi on temporal
Function: interprets non-linguistic components of verbal communication
- intonation, tone/pitch, rhythm, musical, emotions
Blood Supply: Inferior MCA

Question 6

Wernicke’s Area

Answer 6

Auditory ASSOCIATION Cortex
Dominant hemi (L)
Location: temporal
Function: interpret language/verbal communication
Blood Supply: Inferior MCA

Question 7

Lesion on Wernicke’s Area

Answer 7

Wernicke’s aphasia - WORD SALAD
Can’t comprehend but can speak

Question 8

Lesion on posterior area 22

Answer 8

Sensory dysprosodia
- inability to interpret intonation of speech

Question 9

Area 17

Answer 9

Primary Visual Cortex
Location: occipital
Function: detect visual input
Blood Supply: PCA

Question 10

Lesion on area 17

Answer 10

Cortical blindness - inability to detect visual input

Question 11

Contralateral homonymous hemianopia

Answer 11

Unilateral blindness

Question 12

Area 18 and 19

Answer 12

Secondary visual cortex
Location: occipital
Function: recognizing shapes, color, spatial orientation, and movement
Blood Supply: PCA

Question 13

Lesion on 18 and 19

Answer 13

Visual agnosia - inability to recognize shapes, color, movement, spatial orientation

Question 14

Area 7
(Where is it?)

Answer 14

Visual association cortex
Location: parietal
Function: spatial processing; interprets visual info with somatosensory info to determine spatial relationships
Blood Supply: PCA

Question 15

Lesion on area 7

Answer 15

Inability to interpret “awareness” between location/objects and the body

Question 16

Area 37
(What is it?)

Answer 16

Visual association cortex
Location: temporal (fusiform gyrus)
Function: interprets FACES AND PLACES
Blood Supply: PCA

Question 17

Lesion on area 37

Answer 17

Inability to interpret/recognize faces and places
Prosopagnosia - inability to recognize faces

Question 18

Area 3,1,2

Answer 18

Primary somatosensory cortex
Location: parietal
Function: detect somatosensory sensation from the contralateral side of body
Blood supply:
- superior MCA: UE, face, neck, upper trunk
- ACA : lower trunk, LE

Question 19

Area 40, 5, 7

Answer 19

Secondary/Associative somatosensory cortices
Location: parietal
Function: recognize/interprets somatosensory characteristics
Blood supply: superior MCA