Physiology 2130 Lecture Notes - Lecture 2: Cerebrospinal Fluid, Subarachnoid Space, Choroid Plexus

• School: Western University
• Department: Physiology
• Course: Physiology 2130
• Professor: Anita Woods

Document Summary

Medial (midline)- cutting the brain in half and look at the cross section. Posterior-caudal: behind or towards the back. Cerebrum-cerebral cortex the wrinkly part: two cerebral hemispheres divided by the sagittal fissure (midline, concerned with contralateral sensation and movement. The back red part: also has two hemispheres, concerned with ipsilateral motor control. Brain stem: the most primitive part of the brain, concerned with life functions (ex. Spinal cord: conduit for information to and from the brain, sensory and motor losses following section. Forebrain front of the brain: cerebral cortex, thalamus, retina. Midbrain inside middle of the brain: tectum, superior and inferior colliculus, tegmentum. Hindbrain lower back part of the brain: cerebellum and pons, medulla. Grey matter: cell bodies of neurons, unmyelinated gives it the grey colour. White matter: myelinated axons of neurons, myelination give it the white colour. White matter is on the outside (axons) Gray matter is on the inside (cell bodies)