Question

What are the different parts of the hind brain?

Explain the function of each part of the hindbrain?

If a person has a tumor in hindbrain suggest which type of pathological symptoms it would depict?

Answer 1

1) .Parts of hind brain:

Hind brain is the posterior region of the brain. This includes three parts – cerebellum, pons varolii and medulla oblongata.

2).

a). Pons varolii is a transverse band of nerve fibres connects the right and left halves of the cerebellum. In addition, gray matter in the pons controls some aspects of respiration.

b). Cerebellum is well developed and transversely elongated. It consists of a median lobe called vermis and two lateral lobes. Cerebellum maintains equilibrium and co-ordinates the voluntary muscular movements.

c). Medulla oblongata is broad anteriorly and tapers posteriorly into the spinal cord. It is the last part of the brain. The cavity of medulla oblongata is called myelocoel or fourth ventricle. Medulla oblongata and pons varolii control the involuntary activities in the body such as heart beat, blood pressure, breathing etc. In addition, the medulla contains reflex centres for vomiting, coughing, sneezing, urinating, defecating, swallowing etc.