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muscle anatomy

Authored by REBECCA ERBAUGH

Biology

11th Grade

Used 22+ times

muscle anatomy
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17 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The I band within a skeletal muscle fiber is indicated by ________.

Label A

Label B

Label C

Label D

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What organelle wraps and surrounds the myofibril and stores calcium?

sarcoplasmic reticulum

cross bridge

sarcomere

sarcolemma

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the sliding filament theory, how does muscle contraction occur?

Both thick and thin filaments shorten as the muscle contracts.

Myosin heads attach and detach from thin filaments, causing thin filaments to shorten.

A bands bunch up and shorten as myosin heads attach to thin filaments.

Myosin cross bridges pull thin filaments, causing them to slide.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The A band within a myofibril is indicated by ________.

Label A

Label B

Label C

Label D

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The H zone is represented by ________.

Label A

Label B

Label C

Label D

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The myofilament composed of actin is indicated by ________.

Label A

Label C

Label D

Label B

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The epimysium is represented by ________.

Label B

Label D

Label A

Label C

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