Nervous System Physiology

The postcommissural branch of the fornix conjoins the anterior nucleus of the thalamus and the mammillary bodies of the hypothalamus.

The non-dominant parietal lobe integrates the contralateral side of the body with its environment enabling people to be aware of this environmental space, and is important for abilities such as drawing. Lesions of the right posterior parietal visuocortex (i.e. parietal-occipital cortex) most likely produces visual neglect. 

 The orbital frontal cortex regulates social behaviour of an organism. People with orbital frontal lesions can become emotionally labile.

Basal ganglia is located in forebrain. Its main function is the action selection on the basis of motivation.

The neurons do not undergo cell division once they have matured during the development of the organism, thus they will not proliferate in the CNS in response to injury.

Fibrous astrocytes are found throughout all white matter. They perform many functions including biochemical support of endothelial cells that form the blood–brain barrier, distribution of nutrients to the nervous tissue and the maintenance of extracellular pH balance.

Cavity of diencephalon is narrow and lined by ependyma and is called third ventricle.

It gives rise to pons and cerebellum.

It is the moderately tough inner meninx, which is highly vascularised and pigmented covering of brain.

It differentiates into three parts: rhinencephalon, telencephalon and diencephalon.

It is the largest part of brain constituting nearly 80% of the brain.

It resists the movement of brain inside the cranium to prevent stretching and breaking of blood vessels.

It is the knob-like posterior part of the corpus callosum.

Corpora quadrigemina is a sub-part of mesencephalon.

It is the largest part of brain. It constitutes nearly 80% of the brain and functions as the central processing unit.