1100 nervous system 2

fissure vs sulci

fissure: deeper, more prominent and seperates important parts of the brain

sulci: shallower and narrower. surround the gyri

whats a gyrus

a ridge or bump on the brain

what is the cerebrum?

it is the main part of our brain and is responsible for consciousness. it contains the 4 lobes of the brain on each of the 2 hemispheres.

has the cerebral cortex and corpus callosum. responsible for coordinating movements transmitting, communication highways in brain, homeostasis, and processing data

what is the cerebral cortex

the thin outter layer of the cerebrum only about 2-4 mm thick and made of grey matter.

whats the corpus callosum

it is the bridge between both hemispheres of the brain and allows for communication between both sides

what is the diencephalon

it is the gateway between the pns/cns and the cerebral cortex. made of thalamus and hypothalamus. undernearth the cerebrum atop the brainstemn

what is the function of the hypothalamus?

located under the thalamus it is the central command station of the autonomic nervous system and primarily maintains homeostasis

what part of the brain is this

the cerebrum

whats the green thing called

hypothallamus

whats this thing in green

thalamus

cerebellum what is it

its under the cerebrum and slightly lower than diencephalon and connected to the brainstem. it is responsible for movement and coordination

whats the purpose of the brain stem

it is an information highway and control unconscious autonomic functions

whats the green

mesencephallon

what are the 3 main parts of the brainstem from inferior to superior

medula oblongata, pons, mesencephalon

whats a ganglion

a bundle of nerve cell bodies

what are the root contributions for the cervical plexus

c1-c4

functions: suppplies the skin and muscles of the head, neck, and diaphragm

what are the root contributions to the brachial plexus

c5-t1

functions: supplies the skin and muscles of the shoulder, chest, arms and hands.

lumbar plexus

L1-L4

function: supplies hips, and anterior thigh

sacral plexus

l4-s4

supplies the rest of the leg like butt, calves, feet

what are all the vertebrae from top to bottom

c1- c7, t1-t12, L1-L5, S1-S5, Co1-Co4

whats the deep groove in the brain the goes from side to side

central sulcus

whats the fold before it called

precentral gyrus