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lecture 1
phsiology
31
Physiology
Undergraduate 2
04/16/2010

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Term
thalamus
Definition
is the catwaway to the cortex
Term
Reticular formation
Definition
is the level of consciousness
Term
medulla
Definition
part of the brainstem
Term
pre-frontal cortex
Definition
agreession and Emothion
Term
hypothalamus
Definition
part of diencephalon/ hormonal integration
Term
Broca's area
Definition
motor speech area
Term
hippocampus
Definition
memory, language and emothion
Term
basal ganglia
Definition
voluntary and selection of movement
Term
corpus callosum
Definition
joint the two hemispheres togerther
Term
neuron
Definition
excitable cells and important for communication
Term
cortex divided into?
Definition
Motor and sensory
Term
what are the brain cells?
Definition
neurons and glia
Term
what does the neuron consist of?
Definition
an axon for commi=unication and dentrites for an input.
Term
what are the five types of glia cells?
Definition
Astrocytes, Microglia, Ependymal and schwann cells
Term
what does Schwann and oligodendrocytes do?
Definition
the wrape around the axon creating myelin sheath to enhance conduction.
Term
Astrocytes?
Definition
the located near the blood vessels acting as the BBB. they exectrat glucos and prevents unwanted molecules from crossing the barrier.
Term
Microglia?
Definition
Acts as the immunological defence in the brain. they can move and phagocytos any unwanted micropes.
Term
Ependymal?
Definition
forming a sheet which lines the cavity of spinal cords.
Term
what is synapes?
Definition
is the junction between nerve cells where the nerve impulse is trnsferred from one neuron to another.
Term
what are the two types of juncation?
Definition
Gap and chemical junction!
Term
gap junction?
Definition
is a fast communcation and relies on electrical impulses.
Term
chemical junction?
Definition
a neurotransmitter required to bridge the gap between the two neurons.
Term
Ascending pathway?
Definition
the information goes up the spinal cord and get processed at the lower brainstem and crossover.
Term
reflaxes
Definition
is controlled by the ANS. which allows the eye pupil to dilate or costrict.
Term
cental sulcus?
Definition
seperate the motor from the sensory cortex.
Term
brainstem
Definition
directs all the info coming from certain parts of the body to the actual part in the cortex.
Term
cerebellum
Definition
smooth contolled movement.
Term
removing of a hippocampi
Definition
causes a loss in short or long term memory.
Term
basal ganglia.?
Definition
under the cortex and responsible for selection of movements.
Term
cortex?
Definition
large, somatosensary and primary motor cortex.densly innverted area of body occupy large regions of brain. The left cortex represent the right body.
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