Surface Structures Of CNS

Question 1

3,1,2

Answer 1

Somatosensory cortex (post central gyrus)

Question 2

4

Answer 2

Primary motor cortex (precentral gyrus)

Question 3

44, 45

Answer 3

Pars Opercularis and Triangularis

Broca’s Area (language production)

Broke speech

Question 4

22

Answer 4

Wernicke’s area (language comprehension)

Word salad

Question 5

17

Answer 5

Primary visual cortex

Question 6

Cortical spinal tract start

Answer 6

Primary motor cortex, percentral gyrus, Layer 5 (pyramidal cell)

Question 7

Corticospinal tract end

Answer 7

Contralateral ventral horn

Question 8

Corticospinal tract route

Answer 8

1. Corona radiata (tele)
2. Internal capsule (tele)
3. Crus cerebri (midbrain)
4. Basilar pons
5. Pyramid (medulla)
6. Crossing over
7. Lateral corticospinal tract in spinal cord

Question 9

Corticospinal tract function

Answer 9

Activation of lower motor neurons in contralateral ventral horn of spinal cord