-
-
dendrite
extention from cell body
-
axon
single extension that connects neurons
-
myelin
covers the axon, allowing neural impulses to travel
-
nodes of Ranvier
breaks in the myelin sheath
-
white matter
- composed of AXON fibers
- inside of brain; outside of spial columb
-
grey matter
- composed of CELL BODIES
- outside of brain; inside of spinal columb
-
synapse
two nerve cells communication system
-
bouton
swollen end of an axon
-
dendritic spine
lumps on the dendrite to which bouton can 'connect'
-
synaptic cleft
the space in between bouton and dendritic spine
-
neurotransmitters
chemical or electrical messages that are passed by neurons
-
mulitpolar neuron
many extensions
-
bipolar neuron
has two extension; an axon and a dendrite
-
unipolar/monopolar neuron
has one extension; invertebrates
-
central nervous system
brain and spinal cord
-
peripheral nervous system
all your nerves extending from the spinal cord
-
somatic nervous system
voluntary muscle responses
-
autonomic nervous system
involuntary responses
-
sympathetic nervous system
speeds up; uses energy
-
parasympathetic nervous system
slows down; conserves energy
-
meningis
coverings of the central nervous system
-
duramater
- outer meninge
- thick, durable
-
arachnoid
- middle meninge
- brain's shrink wrap
-
piamater
- innermost meninge
- cant see with naked eye
-
cerebrospinal fluid
- flows under the arachnoide and over the piamater
- provides support
-
ventricles
holes in the brain that cerebrospinal fluid can flow through
-
-
right hemisphere
- math and numbers
- spacial, location
- emotion!!!
-
corpus collosum
band of fibers connecting the two hemispheres
-
frontal lobe
creativit, personality, future planning, concience
-
perietal lobe
body sensations
-
-
-
cerebellum
- ballence
- baby brain in the back
-
cerebrum
- memories!
- largest part of the brain
-
cerebral cortex
- surface of the cerebrum
- consious thinking occurs
-
-
sulci
depresions of the folds
-
sagittal
divides the brain into right and left
-
-
-
top of the brain
superior
-
bottom of the brain
inferior
-
sensory info travels
through posterior horns
-
motor info goes
out the anterior horns
-
thalamus
controls the autonomic nervous system
-
hyppocampus
new memores; processes new info
-
hypothalamus
controls pituitary, eating, and pleasure
-
endorphins
pain relieving neurotransmitter
-
reflex
a single sensory neuron and single motor neuron comunicate through interneurons
-
neural network
interconnected neural cells
-
endocrine system
the chemical system of communication between the body and brain; HORMONES YEEE
-
pituitary gland
- regulates growth and other glands
- under control of the hypothalamus
-
lesion
tissure distruction
-
limbic system
- controls emotion
- hypothalamus, amygada and hippocampus
-
medulla
- part of the brainstem
- regulates breathing
-
pons
- part of the brainstem
- regulates hearing and balance
-
reticular activating system
- alerts the brain to incoming signals
- vertical along the brainstem
-
midbrain
- above the pons
- recieves sensory info and sends it up
-
broncas area
- left of the frontal lobe
- language expression
-
wernickes area
- left of the temporal lobe
- language reception
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