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Microanatomy > exam 2 part 2 > Flashcards

exam 2 part 2 Flashcards

1
Q

grey matter

A

composed of neuronal cell bodies, dendrites, axonal terminals

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2
Q

white matter

A

bundles of axons

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3
Q

multipolar neurons

A

one axon and two or more dendrites, most motor neurons

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4
Q

bipolar neurons

A

one axon and one dendrite, sensory neurons, retina, olfactory, inner ear

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5
Q

unipolar neurons

A

single processes that bifurcates close to the stroma, long process extending peripheral, sensory neurons, dorsal root ganglia

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6
Q

anaxonic neurons

A

many dendrites but no axon, no action potential, regulate potentials of other neurons, retina

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7
Q

fibrous astrocytes

A

largest found in white matter, CNS

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8
Q

protoplasmic astrocytes

A

found in the grey matter, CNS

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9
Q

oligodendrocytes

A

small dark nucleus, creates myelin, CNS

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10
Q

microglial cells

A

phagocytosis, smallest, CNS

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11
Q

satellite cells

A

located in ganglia, PNS

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12
Q

Schawnn cells

A

produce myelin in the PNS

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13
Q

PNS divisions

A

sensory (afferent) and motor (efferent)

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14
Q

sensory afferent

A

sensory nerves, send signals to the CNS

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15
Q

motor efferent

A

composed of motor neurons, somatic and autonomic

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16
Q

somatic nervous system

A

voluntary movements

17
Q

autonomic nervous system

A

involuntary movement, sympathetic and parasymathetic

18
Q

sympathetic nervous system

A

fight/flight

19
Q

parasympathetic nervous system

A

rest/digest

20
Q

lymphocyte lifespan

A

weeks- years

21
Q

neutrophil lifespan

A

6hours- few day

22
Q

basophil lifespan

A

2-3 days

23
Q

rubriblast

A

large cells, scant, deeply blue cytoplasm, most undifferentiated RBC

24
Q

prorubricyte

A

second most undifferentiated RBC

25
Q

rubricyte

A

third undifferentiated RBC, acidophilic and basophilic cytoplasm, nucleus is heterochormatic

26
Q

metarubricyte

A

near the size of a mature RBC, eccentric nucleus, dense and round, slightly basophilic cytoplasm

27
Q

reticulocyte

A

youngest RBC precursor to circulate normally, slightly basophilic cytoplasm, no nucleus

28
Q

myeloblast

A

most undifferentiated granulocyte

29
Q

promyelocyte

A

second most undifferentiated granulocyte

30
Q

myelocyte

A

nucleus round/oval, granules appear

31
Q

metamyelocyte

A

nucleus is bean-shaped, small indent

32
Q

band cell

A

larger indented nucleus, can be released into circulation (left-shift)

Microanatomy (3 decks)

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