Brain dissection lab

  this is the cross section of the cerebrum








              

This is the picture and labeling of the sagital cut of the brain.

Cerebrum is yellow, brain stem is red, cerebellum is green.







In this lab we labeled and made incisions on the sheep brain. There was only two cuts we had to make. one was a sagittal cut and than a cross section cut on the cerebrum. we labeled many parts of the brain starting with discovering the anterior and posterior side of it. After that we got the cerebrum and the cerebellum which is the bottom part that is shaped like a bell. The brain stem was really fragile. Once we made the sagital cut labeling got a little more difficult, we labeled the thalamus, optic nerve, medulla oblongata, pons, mid brain, corpus callosum and hypothalamus. Than we had to make a cross section on the cerebrum to make the white and gray matter more distinct.

Brain stem	The Brain stem connects neurons to the brain and is assosiated with many involuntary movements in the brain.
Cerebellum	coordinates voluntary movements and receieves sensory info from the sensory receptors.
Cerebrum	This is related to the thughts and the action of the body, the voluntary movements.

Thalamus	Relay sensory and motar signals, regulate consisness alertness and sleep.
Optic nerve	transmits information from the retina of the eye to the brain
Medulla oblongata	Controls body functions, coordination of body movements.
pons	Relay info from the cerebrum to the cerebellum
midbrain	midbrain
Corpus callosum	Helps share information
hypothalamus	Maintain homeostasis

The function of the myelin is to wrap around axons and helps the impulse flow through.