4. brain Flashcards Preview

Anatomy 3402 - 2nd Half > 4. brain > Flashcards

Flashcards in 4. brain Deck (10):
1

central nervus system vs peripheral nervous system

CNS
- brain and spinal chord
PNS
- cranial and spinal nerves

2

inward folds of brain

sulci

3

outward folds of brain

gyri
(between sulci)

4

purpose of folds in the brain

increase surface area
- cell bodies (neurons) exist in grey matter of brain

5

sulcus of the brain

central, lateral and longitudinal

6

3 main parts of the brain

cerebrum (superior)
cerebellum (posterior/inferior)
brain stem

7

area of white matter connecting right and left hemispheres

corpus callosum

8

majority of neurons found in

cerebellum
- large amount in small region
- highly folded

9

~ number of neurons

80-100billion neurons

10

alzhemeirs causes degeneration where

mostly sulci and gyris