BSC 2023 Lecture Notes - Lecture 3: Meningitis, Meninges, Thalamus
Document Summary
Meninges protective membranes that cover brain and spinal cord ex. Meningitis- infection of the meninges cerebrospinal fluid cushions and protects cns; fills spaces b/w miniges-helps maintain blood-brain barrier. Ventricles interconnecting chambers that produce and serve as a reservoir for cerebrospinal fluid. Contains neuron fibers that run together in bundles called travts-ascending tracts take info. to brain- Descending tracts take info. away from brain -tracts cross just after they enter and exit the brain. Spinal cord extends from bade of brain and proceed inferior in the vertebral column -allows for communication b/w brain & peripheral nerves -center for thousands of reflex arcs. Brain enlarged superior part of cns located in cranial cavity of skull. Cerebrum largest part of brain, consists of 2 cerebral hemispheres (left & right)-comm. with & coordinates the activities of the other parts of the brain. Sulci grooves that divide each hemisphere into lobes that include" Left hemisphere has greater control over language and mathematical abilities, logic.
