8.2.1 - Brain: Structure & Function

Question 1

What Are The 5 Sections Of The Brain?

Answer 1

~ Cerebrum.

~ Hypothalamus.

~ Medulla oblongata.

~ Cerebellum.

~ Pituitary gland.

Question 2

Describe The Structure Of The ‘Cerebrum’
(3 Points)

Answer 2

~ Largest part of the brain.

~ Divided into two halves, called the cerebral hemispheres.

~ Has a thin outer layer called the cerebral cortex.

Question 3

Describe The ‘Cerebral Hemispheres’ Of The Cerebrum
(3 Points)

Answer 3

~ Joined by a band of nerve fibres.

~ Right side controls the right side of the body.

~ Left side controls the left side of the body.

Question 4

Describe The ‘Cerebral Cortex’ Of The Cerebrum
(3 Points)

Answer 4

~ Highly folded, increasing its surface area, allowing it to contain a greater number of neurones.

~ More neurone connections = carry out more complex behaviours.

~ Beneath is white matter, containing myelinated axons of neurones.

Question 5

What Is The Function Of The ‘Cerebrum’?
(5 Points)

Answer 5

~ Vision.

~ Hearing.

~ Speech.

~ Thinking.

~ Memory.

Question 6

Describe The Structure Of The ‘Hypothalamus’

Answer 6

Found just above the pituitary gland.

Question 7

What Is The Function Of The ‘Hypothalamus’?
(4 Points)

Answer 7

~ Regulating body temperature.

~ Osmoregulation.

~ Regulating digestive activity.

~ Controlling endocrine functions.

Question 8

Describe The Structure Of The ‘Medulla Oblongata’

Answer 8

Found at the base of the brain, and at the top of the spinal cord.

Question 9

What Is The Function Of The ‘Medulla Oblongata’?
(2 Points)

Answer 9

~ Controls heart rates.

~ Controls breathing rates.

Question 10

Describe The Structure Of The ‘Cerebellum’
(2 Points)

Answer 10

~ Underneath the cerebrum.

~ Has a folded cortex.

Question 11

What Is The Function Of The ‘Cerebellum’?
(2 Points)

Answer 11

~ Coordinates movement.

~ Coordinates balance.