What is a large mass of neurons deep in the brain?

nucleus

celarly defined small groups of neurons

locus

poorly defined group of neurons in CNS

substantia, (substantia nigra)

collection of neurons in PNS

ganglion

collection of common origin and destination

tract

collection of axons that connects one side of brain to other

commisure

ribbon like collection of axons smaller than tract

laminiscus

3 main divisions of nervous system

CNS,PNS, autonomic

autonomic NS divisions

sympathetic and parasympathetic

primary functions of NS

recieve or collect information
process or integrate
respond

2 main components of afferent NS

somatic ns
visceral NS

2 main components of motor or efferent NS

somatic and autonomic

2 main types of cells in nsn

neurons and glia

type of cell in ns capable of mitotic activity

glia

specialized parts of neuron 5

axon, dendrites, stroma, synaptic cleft, telodendria (interneurons)

neurons classified

by shape and # of attachments to cell body

multipolar

most common neuron

multipolar found in

special senses

unipolar found in

afferent

most common type of funtional neuron, not sensory

interneurons

wallarian degeneration

injury to neuron, axon is reabsorbed, neural tube regenerates axon

near end of axon injury

chance of regenerating is good

middle of axon injury

chance of regeneration is bad

what part of astrocyte forms bbb

foot processes

function of epindymal cell

production of csf

small cell similar to macrophage in cns

microglia

neurons in ganglia separated and supported by

satellite cells

epi, peri neuria

know where they occur

cerebrum, cerebellum, brainstem, diancephalon

parts of brain

principle difference between brain and spinal cord

in brain, gray matter outside
in spinal cord gray matter inside

largest portion of brain

cerebrum

complex functions carried out in brain

in cerebrum

largest connecting tract in brain

corpus collosum

structure that separates hemispheres of brain

longitudinal fissure

what separates cerebrum from cerebellum

transverse fissure

name of structure that lines the fissrue and separates cerebellum

tentorum

how many lobes of brain

5 lobes
frontal
insula
parietal
occipital
temporal

what separates frontal and parietal lobes

central sulcus

what structure separates temporal lobe and frontal and parietal lobe

lateral sulcus

all lobes have these 3 functions

sensory motor and association

what are does speech

brocas area, parietal lobe L side

taste cortex is found in

insula

two folds of brain next to eachother, connected by

arduet fibers

longitudinal fasciculi do

connect multiple lobes

internal capsule and corona radiata

projection tracts

basal ganglia function

motor control

medulla runs

sympathetic nervous system

cranial nerves in pons

5-8

brainstem connection to cerebellum

peduncles

sympathetic nervous system

thoracolumbar

parasympathetic nervous system

craniosacral

upper motor neuron

brain to the cord

lower motor neuron

cord to the periphery (effector)