Question

21. Identify and describe the 3 primary brain vesicles formed from the neural tube.

Answer 1

The three primary brain vesicles that form from the neural tube forebrain or prosencephalon ,midbrain or mesencephalon and hindbrain or rhombencephalon.

Forebrain give rise to Telencephalon, Diencephalon.

The mid brain give rise to Mesencephalon.

And the hindbrain give rise to Metencephalon, and Myelencephalon.

FOREBRAIN :
It is the forwardmost portion of the brain. It plays a major role in controlling body temperature, reproductive functions, sleeping, display of emotions, eating.

MIDBRAIN:
The part of the brain that connects to hindbrain and the forebrain is called the midbrain or mesencephalon. The midbrain plays a major role in helping the movement as well as visual and auditory processing. Damage to the midbrain is associated with the development of Parkinson's disease.

HINDBRAIN:
It is the lowermost part of the brain. It includes medulla,pons and cerebellum.
The medulla and pons has sensory neurons that helps to transmit information from the spinal cord to the fore brain. The medulla also plays a major role in regulating the basic life functions such as respiration and heartbeat.