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Physiology
Mixture of chapters
25
Physiology
Undergraduate 4
02/11/2013

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Cards

Term
Two principle types of cells
Definition
Neurons and supporting cells
Term
Supporting cells
Definition
aid the functions of neurons and are about 5 times more abundant than neurons.
Term
In CNS supporting cells are collectively called
Definition
Neuroglia or glial cells
Term
Which cell divides in mitosis (Glial cells or neurons)
Definition
Glial cells are able to divide by mitosis
Term
What are the three principal regions in neurons?
Definition
1. a cell body
2. dendrites
3. an axon
Term
Space between two nerves
Definition
synaptic cleft
Term
Does the use of cocaine create a hypo- or hyper-polarization in postsynaptic cleft, and why?
Definition
hyper
Term
If we have "white matter" in CNS, what cell is it?
Definition
shwann cell
Term
What is EEG?
Definition
Electro-encephalo-gram
Term
What divides brain from ear to ear, which would be dividing the sensory area and the motor area
Definition
Central sulcus
Term
What is dividing the left and right hemisphere
Definition
Corpus Callosum
Term
What are two techniques for visualizing brain function?
Definition
EEG, fMRI(functional magnetic resonance imaging), ad MEG(Magneto-encephalo-gram-)
Term
What kinds of waves are in a emotional stressed person?
Definition
Theta waves
Term
Four words used in action potential towards depolarization?
Definition
Excitatory post-synapic potentiation
Term
Cells that allow communication between cardiac muscle
Definition
Gap Junctions
Term
Two gases that are used as neurotransmitters
Definition
C0(Carbon monoxide), and N0(Nitric-oxide)
Term
What controls many activities of the autonomic system?
Definition
Medulla Oblongata
Term
Centers for cardiovascular, pulmonary, urinary, reproductive and digestive systems are located in the...
Definition
Medulla Oblongata
Term
What does AchE stand for?
Definition
Acetyl-choline-esterase
Term
What does AchE do?
Definition
It hydrolysis into acetyl and choline, which then helps with re-uptake, goes back to form AchE and be used again
Term
Give 5 steps in neurotransmitter release
Definition

1.Action potentials reach axon terminals

2.Voltage-gated Ca2+ channels open

3.Ca2+ binds to sensor protein in cytoplasm

4.Ca2+ protein complex stimulates fusion

5.Stimulates exocytosis of neurotransmitters

Term
What is a type of CNS supporting cell that helps hold neurons away from each other and forms myelin sheaths around axons (multiple axons)
Definition
Oligo-dendro-cyte
Term
Gaps between myelin sheath are
Definition
Nodes of Ranvier
Term
What are the two divisions in the autonomic system?
Definition
Sympathetic and para-sympathic
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