Image credit: https://saspxbiologyclub.files.wordpress.com/2015/09/cow-brain-dissection-procedures.pdf
Study Tips:
It is important to be able to visualize everything! Use diagrams!
Cerebellum
"ring a bell" -- voluntary action
Midbrain = Motherboard
All the important information passes through there
Cerebrum
largest part of brain
helps with movement
regulates temperature
Cerebellum
works with cerebrum to regulate voluntary actions
Brainstem
Medulla
controls vital processes (heartbeat, breathing, blood pressure)
Pons
sleep/wake cycles, respiratory processes
Midbrain
transmits information needed for sight and hearing
Image credits: lecture 18
Study Tips:
PAD = Pia, Arachnoid, Dura
wraps around brain and provides PADding
Dura = Directly under
Arachnoid = Avascular
membranes surrounding CNS
Pia Mater
innermost layer
vasularized
Arachnoid
avascular membrane involved in cerebrospinal fluid (CSF) metabolism via subarachnoid space
Dura Mater
membrane directly under skull
Falx Cerebri
vertical fold of dura between hemispheres
Tentorium Cerebelli
horizontal fold of dura between cerebrum and cerebellum
Image credit: lecture 18
Study Tips:
Dorsal Tract = Sensory Neruons
Ventral Tract = Motor Neurons
cows limbs (capable of motor functions) are ventral to their spine
Funiculi = (nerve) fibers
Central Canal
Cerebrospinal Fluid (CSF)
Doral, Lateral, & Ventral Funiculi
bundles of nerve fibers
Dorsal, Lateral, & Ventral Horns
nerve cell bodies and interneurons
The midbrain
Remember: Midbrain = Motherboard
Falx Cerebri = vertical fold of dura between hemispheres
Tentorium Cerebelli = horizontal fold of dura between cerebrum and cerebellum
A good way to think about it...
Cerebri and hemi rhyme
the falx cerebri divides the hemispheres
Cerebelli and cerebellum
the tentorium cerebelli divides the cerebrum and cerebellum
There are dorsal, lateral, ventral horns.
Horns are nerve cell bodies and interneurons.