Exam (elaborations)

HUBS 191 progress test 2 UPDATED ACTUAL Questions and CORRECT Answers

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HUBS 191 Progress

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HUBS 191 Progress

HUBS 191 progress test 2 UPDATED ACTUAL Questions and CORRECT Answers central nervous system - CORRECT ANSWER- nervous system consisting of brain and spinal cord peripheral nervous system - CORRECT ANSWER- nervous system consisting of peripheral nerves glia - CORRECT ANSWER- 'glue' provid...

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Uploaded on October 11, 2024
Number of pages 28
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Type Exam (elaborations)
Contains Questions & answers

Institution HUBS 191 Progress
Course HUBS 191 Progress

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HUBS 191 progress test 2 UPDATED
ACTUAL Questions and CORRECT
Answers
central nervous system - CORRECT ANSWER- ✔✔nervous system consisting of brain and
spinal cord

peripheral nervous system - CORRECT ANSWER- ✔✔nervous system consisting of
peripheral nerves

glia - CORRECT ANSWER- ✔✔'glue' provide support for neurons, 5 type, 4 in CNS, 1 in
PNS

neurons - CORRECT ANSWER- ✔✔nerve cells, transmission of information

dendrites - CORRECT ANSWER- ✔✔recieve input, send info into cell body

cell body - CORRECT ANSWER- ✔✔contains nucleus and organelles

axon - CORRECT ANSWER- ✔✔carries electrical impulses, may/may not be myelinated

axon terminals - CORRECT ANSWER- ✔✔end terminus of the axon, neuro transmitter
release

tract - CORRECT ANSWER- ✔✔bundle of axons in the CNS

grey matter - CORRECT ANSWER- ✔✔group of cell bodies in cerebral cortex/spinal cord

white matter - CORRECT ANSWER- ✔✔bundle of axons in cerebral cortex/spinal cord

,ganglion - CORRECT ANSWER- ✔✔group of cell bodies in PNS

nerve - CORRECT ANSWER- ✔✔bundle of axons in PNS

input zone - CORRECT ANSWER- ✔✔dendrites and cell body, receives chemical signals
from other neurons

summation zone - CORRECT ANSWER- ✔✔axon hillock, decides to transmit signal or not

conduction zone - CORRECT ANSWER- ✔✔axon may be quite long, carry electrical signals
between brain areas to and from spinal cord or to and from peripheral sensory receptors

output zone - CORRECT ANSWER- ✔✔axon terminals, contact input of other neurons,
release of neuro transmitter

multipolar - CORRECT ANSWER- ✔✔multiple processes emanate from the cell body, the
'typical' neuron

bipolar - CORRECT ANSWER- ✔✔2 processes emanate from the cell body (axon and long
bridge to dendrites

unipolar - CORRECT ANSWER- ✔✔1 process emanates from cell body (hangs on side of
axon)

anaxonic - CORRECT ANSWER- ✔✔no distinct axon, all processes look alike

astrocytes - CORRECT ANSWER- ✔✔supply nutrients to neuron, ensheath blood
capillaries, transmit information, CNS

microglia - CORRECT ANSWER- ✔✔immune cells of the CNS, engulf micro organisms /
debris

, ependymal cells - CORRECT ANSWER- ✔✔line fluid filled spaces of brain and spinal cord,
have cillia to circulate CSF, CNS

oligodentrocytes - CORRECT ANSWER- ✔✔support nerve fibres, ensheath them with
myelin, CNS

schwann cells - CORRECT ANSWER- ✔✔support peripheral nerve fibres, ensheath them
with myelin, similar to oligodendrocytes, PNS

myelin sheath - CORRECT ANSWER- ✔✔lipid wrapped around axon, increases conduction
velocity, multiple schwann cells in a row form the myelin sheath, gaps between myelin called
nodes of ranivier

Synapse/Synpatic Cleft - CORRECT ANSWER- ✔✔neuro transmitter release from one axon
terminals where electrical turns to chemical

afferent - CORRECT ANSWER- ✔✔information going into the brain

efferent - CORRECT ANSWER- ✔✔information out of brain

flow of information - CORRECT ANSWER- ✔✔info comes through receptors, afferent
nerves, into CNS, integration/coordination, motor efferent (somatic or autonomic)

somatic - CORRECT ANSWER- ✔✔the stuff we are aware of and have control over

somatic afferent - CORRECT ANSWER- ✔✔sensory information of what we are aware of

somatic efferent - CORRECT ANSWER- ✔✔voluntary muscle control, 2 neurons between
brain and effector, upper and lower motor neuron

upper motor neuron - CORRECT ANSWER- ✔✔cell body in brain, axon in spinal cord

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