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ALH 122 Chap 10
ALH 122 Chap 10 - Senders, SBC Portland
Question | Answer |
---|---|
axon | the 'tail' of the neuron cell. carries information away from the cell, towards another cell in order to communicate. |
blood-brain barrier | selective barrier in the blood vessels in the brain that attempts to keep toxic substances away from neurons |
brainstem | lower part of the brain, connects the brain with the spinal cord, responsible for your vital functions (heart rate, breathing, etc). |
CNS | central nervous system (brain and spinal cord) |
cerebellum | posterior part of the brain that maintains balance and physical actions that are 'memorized' |
CSF | cerebrospinal fluid |
dendrite | arms of the neuron that receive information from other neurons |
cerebral cortex | outer part of the brain, contains neuronal connections mostly unique to human life (self awareness, speech, logic, problem solving) (your fingers wrapped around your thumb) |
meninges | protect membrane that surrounds your CNS, filled with CSF |
myelin sheath | cells that flatten out like pancakes and wrap around axons to protect them and help them communicate more efficiently with their neighbors |
nerve | a bundle of neurons that run together |
PNS | peripheral nervous system, all the nerves (neurons) in your body that are not part of the brain or the spinal cord |
synapse | the area where two neurons connect (and hold hands) |
ventricles of the brain | canals, or spaces, in the brain that contain CSF |
sympathetic nervous system | your fight or flight system |
parasympathetic nervous system | your rest and digest system |
encephal/o | brain |
gli/o | glial cells (small cells that support neurons in the nervous system, hold neurons together like 'glue' and help create the blood-brain barrier) |
mening/o | meninges |
my/o | muscle |
myel/o | spinal cord |
neur/o | nerve |
-algesia | excessive sensitivity to pain |
-algia | pain |
comat/o | sleep |
-esthesi | feeling |
-kinesia -kinetic -kinesis | movement |
-phasia | speech |
-plegia | paralysis |
-praxia | action |
-syncop/o | to cut off |
syncope | to faint (cut off consciousness) |
efferent | moving away from |
afferent | moving towards |