The Brain

The Brain

The biggest part of the brain is the cerebrum. This can be split into two hemispheres. These hemispheres are connected by the corpus callosum. The corpus callosum are a bundle of fibres. The diagram below shows the structure of the brain:

Human brain anatomy

This image is supplied by Alila Medical media. Click on the link to see more images of the brain.

The highly folded outer surface of the brain is known as the cerebral cortex and it controls many of the higher intelligence functions. However, the cortex can be split into various association areas

Sensory areas: receive impulses from receptors

Association areas: compare current input with a past experience.

Motor areas: Send impulses to effectors

The diagram below show the different functional areas of the brain:

Functional areas of the brain

This image is supplied by Alila Medical media. Click on the link to see more images of the brain.

Contraction of skeletal muscle is controlled by the cerebral hemispheres. However, the fine tuning or balance is controlled by the cerebellum.

The medulla oblongata acts as a regulatory centre for the cardiac centre and the respiratory centre.

The hypothalamus receives information from the temperature receptors and the osmoreceptors.