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Phy Sci 111A > M1 Lec 1 > Flashcards

M1 Lec 1 Flashcards

1
Q

What was the first reference to the brain in human records?

A

Edwin Smith Papyrus

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2
Q

what is trepanation?

A

ancient neurosurgery

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3
Q

luigi galvani

A

discovered animal electricity
* precursors to nerve impulses and muscle contraction

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4
Q

franz gall

A

localization of brain function - associated mental functions w distinct neural regions

phrenology

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5
Q

camillo golgi
* what is golgi stain
* what is reticular theory

A

innovato of neural staining
* golgi stain: silver chromate stain of individual stain
* reticular theory: brain and nervous system are a single network of fibers

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6
Q

santiago ramon y cajal
* neuron doctrine:

A

refined golgi staining
* neuron doctrine: nervous system is made of discrete individual cells

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7
Q

hodgkin and huxley

A

ionic mechanisms of action potential

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8
Q

charles sherrington

A

synaptic transmission

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9
Q

otto loewi

A

neurotransmitters/chemical signaling

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10
Q

two major cell types

A

neurons and glial cells (support cells)

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11
Q

neuronal structure

cell body

A

(soma) contains the nucleus and other organelles

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12
Q

neuronal structure

dendrites

A

recieve signals from other neurons

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13
Q

neuronal structure

axon

A

transmits signals to other neurons or target cells

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14
Q

neuronal structure

axon hillock

A

where the action potential is initiated

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15
Q

neuronal structure

myelin sheath
* formed by?

A

insulating layer around the axon
* formed by schwann cels or oligodendrocytes

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16
Q

neuronal structure

nodes of ranvier

A

gaps in the myelin sheath

17
Q

neuronal structure

axon terminal

A

releases neurotransmitters

18
Q

neuronal structure

synapse

A

the junction between two neurons

19
Q

synapse:
* presynaptic:
* postynaptic:

A
  • presynaptic: axon
  • postynaptic: dendrite

Phy Sci 111A (16 decks)

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