MicroAnatomy. Flashcards

(30 cards)

1
Q

Neuron: Core region is called

A

cell body or soma

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2
Q

Main root of neuron is called

A

axon
which carries messages
to other neuron

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3
Q

Dendrites vs cell body vs Axon

A

gather information ,from other neuron,integrates the information,carries information to be passed on to other cells

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4
Q

Dendrites spines are

A

point of contact with axons of other cells

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5
Q

Axon hillock vs Axon collaterals

A

where the action potential begins,Branch of an axon

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6
Q

Terminal button

A

Knob at the tip of an axon that conveys information to otherneurons

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7
Q

Sensory neurons

A

carry information from the sensory receptors in or on the body
to the spinal cord

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8
Q

Interneurons

A

associate sensory and motor activity within the central

nervous system

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9
Q

Interneurons

A

send signals from the brain and spinal cord to muscles

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10
Q

Somatosensory dendrites

A

Connects directly to its axon

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11
Q

Purkinje cells

A

A distinctive interneuron with extremely branched dendrites

that form a fan shape

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12
Q

three organizational aspects of neuron

A

input, association, and output

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13
Q

Ependymal cells

A

Make and secrete cerebrospinal fluid (CSF)

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14
Q

Astrocyte does this

A

Structural support for neurons,
Transports substances between neurons and capillaries,
Enhancement of brain activity by providing fuel to active brain
regions

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15
Q

Microglia does this

A

Originate in the blood as offshoot of immune system, gets rid of dead cells and They identify and attack foreign tissue

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16
Q

Schwann cell

A

Glial cell in the peripheral nervous system that myelinates

axons

17
Q

Oligodendroglial cell

A

Glial cell in the central nervous system that myelinates axons

18
Q

what doesn’t happen in Central nervous system

A

cells Repair does not take place;

19
Q

In the PNS

A

Microglia and Schwann cells help repair neurons

20
Q

Cell’s proteins determine

A

characteristics and functions

21
Q

what plays a important cell’s

function

A

Water, salts, and ions

22
Q

Elements are

A

Naturally occurring substance

23
Q

Neutrons have a

A

neutral charge

24
Q

Protons carry a

A

positive charge

25
electrons carry
carry a negative
26
with salt Positively and negatively charged ion are
held together by their electrical connection
27
with water Atoms
held together by shared electron
28
Ribosomes
Protein structures that act as catalysts for protein synthesis
29
Codon does this
Sequence of three bases on mRNA that codes for a particular | amino acid
30
Enzyme
Protein catalyst that facilitates the cell’s chemical reactions