Central Nervous System

Question 1

Function of Pre-Motor Cortex?

Answer 1

Helps plan movements

Coordinates several muscle groups at once

Question 2

Function of Primary motor cortex?

Answer 2

Allows use to control voluntary movement of muscles

Question 3

Function of somatosensory cortex?

Answer 3

Sensory receptors from skin muscles joints and tendons interpreted

Question 4

Function of Primary Visual cortex

Answer 4

Receives visual info from retina of the eye

Question 5

Function of visual association cortex

Answer 5

Uses post visual experience to interpret stimuli

Question 6

Cerebellum function?

Answer 6

Balance coordination etc

Question 7

Auditory association cortex function?

Answer 7

Perception of sound stimuli

Eg speech, scream, music

Question 8

Primary auditory cortex function?

Answer 8

Interprets sound energy, loudness + location

Question 9

Brocas speech area function

Answer 9

Motor speech area, alerts muscles innervated in speech production

Question 10

Medulla Function?

Answer 10

• Relays ascending sensory pathway impulses from skin and proprioception through nuclei cuneatus and gracious
• contains nuclei of CN 8,9,10,12
• site of decussation and pyramids
• contains visceral nuclei controlling AR, blood vessel diameter, RR, cough

Question 11

Pons functions?

Answer 11

• Relays info from cerebrum to cerebellum
• cooperates with medullary respiratory centres to control resp. Rate and depth
• contains nuclei CN 5,6,7
• contains projection fibres

Question 12

Midbrain functions?

Answer 12

• Contains visual(sup. Colliculi) and auditory(inf. Colliculi) nervous centres
• contains subcortical motor centres (substantiated Niagra + red nuclei)
• contains projection fibres

Question 13

What are the 5 areas of the internal capsule?

Answer 13

Anterior limb 
Genu
Posterior limb 
Retrolentiform/retrolenticular 
Sublentiform/sublenticular 
(all have topographic relations with adjacent gray matter)

Question 14

Three types of fibres found in the cerebral hemisphere?

Answer 14

Association fibres
Commissural fibres
Projection fibres

Question 15

3 layers of meninges

Answer 15

Pia mater
Dura mater
Arachnoid mater

Question 16

Where is CSF found in the meninges?

Answer 16

Subarachnoid space

Question 17

What are the two Pathological spaces called in the meninges?

Answer 17

Epidural hematoma (between dura and skull)
Subdural Hematoma (between arachnoid and dura mater)