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BIO211 > Ch 12.1-12.3 > Flashcards

Ch 12.1-12.3 Flashcards

1
Q

Stature located in synapses and forms pre-synaptic membrane

A

axon terminals

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2
Q

the cellular extension involved with receiving pre-synaptic information

A

Dendrites

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3
Q

Body of a neuron

A

Soma

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4
Q

the point of action potential recreation positioned at the start of the axon

A

axon hillock

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5
Q

length of the neuron under Schwann Cell

A

Internode

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6
Q

areas of bare axon between Schwann cells (2names)

A

Node of Ranvier

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7
Q

Branching ends of the axon

A

terminal arborization

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8
Q

Movement down the axon away from the soma

A

D. Anterograde Transport

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9
Q

Movement of enzymes and cytoskeletal components down the axon to renew worn-out axoplasmic components

A

C. Slow Anterograde Transport

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10
Q

Movement of enzymes and small molecules toward the distal end of the axon

A

E. Fast Anterograde Transport

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11
Q

Returns used synaptic vesicles and other materials to soma

A

B. Fast Retrograde Transport

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12
Q

Two-way passage of proteins, organelles, and other materials along an axon

A. Axonal Transport
B. Fast Retrograde Transport
C. Slow Anterograde Transport
D. Anterograde Transport
E. Fast Anterograde Transport
A

A. Axonal Transport

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13
Q

One axon; multiple dendrites

A. Bipolar neurons
B. Anaxonic Neuons
C. Multipolar Neurons
D. Unipolar Neurons

A

C. Multipolar Neurons

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14
Q

one axon; one dendrite

A. Bipolar neurons
B. Anaxonic Neurons
C. Multipolar Neurons
D. Unipolar Neurons

A

A. Bipolar neurons

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15
Q

a single process

A. Bipolar neurons
B. Anaxonic Neurons
C. Multipolar Neurons
D. Unipolar Neurons

A

D. Unipolar Neurons

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16
Q

no axon; multiple dendrites

A. Bipolar neurons
B. Anaxonic Neurons
C. Multipolar Neurons
D. Unipolar Neurons

A

B. Anaxonic Neurons

17
Q

Nerve cells have the same three fundamental physiological properties as muscle cells do: excitability, conductivity, and secretion

True or false

A

false

18
Q

Fast retrograde transport returns used synaptic vesicles and other materials to the soma and informs the soma of conditions at the axon terminals.

True or False

A

true

19
Q

In the PNS, unmyelinated fibers are enveloped in Schwann cells.

True or False

A

true

20
Q

The Schwann cell’s plasma membrane spirals repeatedly around the unmyelinated fibers as it does in the myelin sheath.

True or False

A

false

21
Q

Unmyelinated nerve fibers (axons) in the PNS are enveloped in Schwann cells.

True or False

A

true

22
Q

What are the two parts of the Trigger Zone?

A

Axon Hillock

Initial Segment

BIO211 (21 decks)

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