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Anatomy - Muscular System

Authored by Chris Nagel

Biology

10th - 12th Grade

NGSS covered

Used 30+ times

Anatomy - Muscular System
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25 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

When a muscle fiber contracts, it _______.

elongates

shortens

thins out

grows hair

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Skeletal muscles are attached to the _________.

stomach

lungs

bones or skin

involuntary muscles

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Skeletal muscles always work in _____.

antagonistic pairs

groups of 3

the brain

joints

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the smallest contractile unit of a muscle?

fascicle

muscle fiber

sarcomere

myofibrils

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The ions that are responsible for binding to the troponin-tropomyosin complex and 'unlocking' the active sites on actin is _____.

Sodium

Calcium

Potassium

Magnesium

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the name of the protein that makes up the thick filaments?

actin

myosin

myoglobin

titin

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the name of the main protein that makes up the thin filaments in the muscle cell?

Actin

Myosin

Myoglobin

Titin

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