Striated muscle fiber model

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Last updated 7:49 PM on 9/24/26
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23 Terms

1
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Myofibril

tightly packed filament bundles found within skeletal muscle fibers

<p>tightly packed filament bundles found within skeletal muscle fibers</p>
2
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Mitochondria

Name this specific structure

<p>Name this specific structure</p>
3
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Axon

Name this specific structure

<p>Name this specific structure</p>
4
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myelin sheath

Name this specific structure

<p>Name this specific structure</p>
5
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myelin sheath

Formed by Schwann cells

<p>Formed by Schwann cells</p>
6
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Neurilemma

Membrane of the neuron

<p>Membrane of the neuron</p>
7
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motor end plate

portion of the sarcolemma in contact with the axon terminal

<p>portion of the sarcolemma in contact with the axon terminal</p>
8
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synaptic cleft

Space between the axon terminal and the motor end plate

<p>Space between the axon terminal and the motor end plate</p>
9
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synaptic vesicles

Name this specific structure

<p>Name this specific structure</p>
10
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Achtylcholine

Chemical inside synaptic vesicles/ neurotransmitter

<p>Chemical inside synaptic vesicles/ neurotransmitter</p>
11
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Schwann cells

Wrapped layers that make up the myelin sheath

<p>Wrapped layers that make up the myelin sheath</p>
12
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Nucleus

Name this specific structure

<p>Name this specific structure</p>
13
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Thin and thick myofilaments

Name the dark pink and light pink structures

<p>Name the dark pink and light pink structures</p>
14
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Sarcoplasm

Space Inside of the muscle cell

<p>Space Inside of the muscle cell</p>
15
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A-Band

Thick myofilaments and some overlapping thin

<p>Thick myofilaments and some overlapping thin</p>
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I-Band

thin filaments only

<p>thin filaments only</p>
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Z line

In the middle of the I-band

<p>In the middle of the I-band</p>
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H-zone

In the middle of the thick filaments only

<p>In the middle of the thick filaments only</p>
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Sarcomere

A __________ is from z-line to z-line

<p>A __________ is from z-line to z-line</p>
20
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Sarcolemma

Muscle cell membrane

<p>Muscle cell membrane</p>
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T tubule

projection of the sarcolemma into the interior of the muscle cell

<p>projection of the sarcolemma into the interior of the muscle cell</p>
22
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sarcoplasmic reticulum

Organelle of the muscle fiber that stores calcium.

<p>Organelle of the muscle fiber that stores calcium.</p>
23
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Endomysium

Connective tissue surrounding a muscle fiber

<p>Connective tissue surrounding a muscle fiber</p>