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Flashcards in Basics of the CNS Deck (11)
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1
Q

Describe the differences between the CNS and the PNS (2)

A

The CNS is cerebral hemispheres, brainstem, spinal cord - all surrounded in pia.
The PNS is dorsal and ventral spinal nerve roots, and peripheral nerves - no pia.

2
Q

Describe the parts of the brainstem and their roles. (7)

A

Midbrain - responses to visual and auditory stimuli.
Pons - feeding and sleep
Medulla - cardiovascular and respiratory brain centres; medulla oblongata.

3
Q

Describe the differences between gyri and sulci. (1)

A

Gyri - ridges

Sulci - gaps between ridges.

4
Q

Describe the sepeaations of function that are based on the position of sulci and gyri. (4)

A

Anterior to central sulcus - motor in the frontal lobe.
Posterior to central sulcus - sensory
Precentral gyrus - muscles
Postcentral gyrus - senses.

5
Q

What are the functions of the frontal lobe? (3)

A

Motor control, speech, personality, higher thinking.

6
Q

What is the corpus callosum? (1)

A

Fibres connecting the two cerebral hemispheres.

7
Q

What is the uncus? (1)

A

Part of the temporal lobe of the inferior aspect of the brain that can herniate and compress the midbrain.

8
Q

What is the function of the occipital lobe? (1)

A

Vision

9
Q

What are the functions of the parietal lobe? (2)

A

Sensation and spacial awareness.

10
Q

What are the functions of the temporal lobe? (3)

A

Memories, smell, hearing.

11
Q

What are the functions of the cerebellum?

A

Co-ordination and motor learning.