Week 3

Question 1

Functions of the frontal lobe

Answer 1

a. Behaviour & Emotional Control
b. Personality
c. Problem Solving (reasoning & judgment)
d. Voluntary Motor Activity (Precentral Gyrus)
e. Broca’s Area (If damaged, difficulty producing language)

Question 2

Functions of the parietal lobe

Answer 2

a. Integrates sensory information
b. Processing and perception of touch, pain, proprioception
c. Postcentral Gyrus (Sensory reception)
d. Perception of Language (Wernicke’s Area)

Question 3

Functions of the temporal lobe

Answer 3

a. Auditory Information Processing
b. Processes Language (Semantics and Naming)
c. Processes Smell

Question 4

Functions of the occipital lobe

Answer 4

a. Receives and processes visual information

Question 5

Components and functions of the diencephalon

Answer 5

a. Thalamus
i. Gatekeeper for sensory information
b. Hypothalamus
i. Maintains homeostasis
c. Pituitary Gland
i. Secrete hormones

Question 6

Components and functions of the brainstem

Answer 6

a. Midbrain
i. Connect brainstem to Cortex
b. Pons
i. Connect cerebrum to cerebellum & medulla
ii. Transmit sensory information to brain from periphery
c. Medulla Oblongata
i. Continuous with spinal cord (Pyramid (center), Olive (lateral))

Question 7

Functions of the cerebellum

Answer 7

a. Coordination of voluntary movement
b. Controls balance and equilibrium
c. Integrates proposed movement with current body position
d. Monitors and makes adjustments to correct motor plan

Question 8

Define fissure

Answer 8

Deep groove in cortex

Question 9

Define sulcus

Answer 9

Shallow groove in cortex

Question 10

Define gyrus

Answer 10

ridge in cortex

Question 11

Define cerebrum

Answer 11

another word for cortex

Question 12

How do the left and right cerebral hemispheres communicate?

Answer 12

corpus callosum

Question 13

Describe Multiple Sclerosis

Answer 13

A neuropathy in CNS with slow progression; onset between ages 20-50
Life expectancy decreases 7-14 years, no cure but remission possible
(Oligodendrocytes won’t repair themselves)

Question 14

Describe Guillain-Barre Syndrom

Answer 14

A neuropathy in PNS with progression over days to weeks. Can happen in any age but more common under 40.
o 80-90% recover within 2-4 weeks
Schwann cells can dedifferentiate, proliferate, and re-myelinate bare axons over time

Question 15

What does the tentorium cerebelli separate?

Answer 15

The cerebellum and the cerebrum

Question 16

What does the Falx Cerebri separate?

Answer 16

The left and right cerebral hemispheres