The Brain

Question 1

What are the 6 parts of the brain?

Answer 1

1.Frontal lobe
2.Parietal lobe
3.Occipital lobe
4.Temporal lobe
5.Cerebellum
6.Brain stem – Pons and Medulla oblongata

Question 2

What are the 3 steps of human brain development (as a foetus)(including day stamps)?

Answer 2

1. The CNS develops -> embryonic neural tube. (22-23 days)
2. The anterior end of the neural tube swells -> major divisions of the brain:
   
   1. The forebrain, midbrain and hindbrain. (30 days)
3. (posterior end) of the tube -> spinal cord (180 days)

Question 3

What does the forebrain foetus develop into?

Answer 3

The cerebrum, thalamus and hypothalamus

Question 4

What does the midbrain foetus develop into?

Answer 4

superior and inferior colliculi

Question 5

What does the hindbrain foetus develop into?

Answer 5

cerebellum, pons and medulla

Question 6

How many cerebral hemispheres are there?

Answer 6

Two hemispheres (right and left)

Question 7

What is the cerebrum’s function?

Answer 7

sensory perception, learning, memory,

Question 8

Describe and explain the function of the cerebral cortex

Answer 8

Describe: Outer layer of grey matter and inner layer of white matter
Function: Increases surface area for processing information

Question 9

Describe and explain the function of the corpus callous

Answer 9

Describe: made up of myelinated fibres
Explain: connects the two cerebral hemispheres