Brain
 

 
Brain development video   -Interactive video text

The brain develops from the proximal part of the neural tube.

The neural tube first forms three primary brain vesicles. The vesicles are as follows


1 forebrain 2 midbrain 3 hindbrain

The neural tube containing the primary vesicles now develop three flexures. One is placed between the prosencephalon and mesencephalon. This is the cephalic flexure. It points dorsally. Another dorsally placed flexure is between the spinal cord  and the medulla oblongata. This is the cervical flexure. The only ventrally pointed flexure is the pontine flexure, which is placed within the substance of the developing pons.

Further development of the neural tube leads to delineation between the brain part and the spinal cord part.

It forms the following

Primary brain vesicles

 

 

    

1 prosencephalon 2 diencephalon 3 mesencephalon 4 rhombencephalon 5 spinal cord

Rollover to produce the flexures as follows
1 prosencephalon 2 diencephalon 3 mesencephalon 4 pons 5 spinal cord  6 cephalic flexure 7 pontine flexure 8 cephalic flexure

 

 

 

 

 

 

 

 

 

 

 

 

  

Oluwole Ogunranti 

Practical  Gross  Museum  Video  Malformations

 

 

 

 

 

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