Muscle Tissue Quiz

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This is a hereditary disease where the muscles degenerate and are replaced by fat and scar tissue.

A. Contracture

B. Fibromyalgia

C. Muscular Dystrophy

D. Myasthenia gravis

Which part of the myofiber stores Ca2+ ?

A. Sarcoplasm

B. Sarcoplasmic Reticulum

C. Myoglobin

D. Myofibril

This disorder is characterized by a shortening of the muscle, not caused by nervous stimulation.

A. Contracture

B. Fibromyalgia

C. Muscular Dystrophy

D. Myasthenia gravis

Emma has chronic muscle pain and tenderness. What disorder does she have?

A. Fibromyalgia

B. Myasthenia gravis

C. Muscular Dystrophy

D. Contracture

Why is the muscle red?

A. Because of blood

B. Because of hemoglobin

C. Because of myoglobin

D. Because of carotene

The thick filament is made up of what protein?

A. Actin

B. Myosin

Area where the thick and thin filaments overlap

A. A band

B. Z disc

C. H band

D. I band

E. M line

What binds to the troponin?

A. H+

B. O2−

C. Ca2+

D. Cl−

The thin filament is made up of what protein?

A. Myosin

B. Actin

Area where there’s only thick filaments

A. A band

B. Z disc

C. H band

D. I band

E. M line

What do you call a skeletal muscle cell?

A. Sacolemma

B. Myofilament

C. Myalgia

D. Myofiber

This disorder is characterized by the person’s antibodies attach the neuromuscular junctions

A. Contracture

B. Fibromyalgia

C. Muscular Dystrophy

D. Myasthenia gravis

Area where there’s only thin filaments

A. A band

B. Z disc

C. H band

D. I band

E. M line

Area where the thick filaments are linked

A. A band

B. Z disc

C. H band

D. I band

E. M line

Where are the thin filaments and elastic filaments anchored?

A. A band

B. Z disc

C. H band

D. I band

E. M line

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