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Muscular System and Human Physiology Quiz

#1

Which type of muscle is striated and under voluntary control?

Skeletal muscle
Explanation

Striated and voluntary.

#2

What is the medical term for a muscle cell?

Myocyte
Explanation

Cell within muscle tissue.

#3

Which structure connects muscle to bone?

Tendon
Explanation

Muscle-to-bone connector.

#4

Which muscle is often called the 'six-pack' muscle?

Rectus abdominis
Explanation

Commonly known as 'six-pack'.

#5

What is the name of the protein responsible for muscle contraction?

Myosin
Explanation

Key protein for contraction.

#6

Which of the following is NOT a function of the muscular system?

Facilitate movement of blood throughout the body
Explanation

Not involved in blood movement.

#7

What is the name of the neurotransmitter responsible for initiating muscle contraction at the neuromuscular junction?

Acetylcholine
Explanation

Neurotransmitter initiating contraction.

#8

Which hormone stimulates muscle growth and protein synthesis?

Testosterone
Explanation

Promotes muscle growth and protein synthesis.

#9

Which type of muscle fatigue occurs due to the buildup of lactic acid?

Peripheral fatigue
Explanation

Caused by lactic acid buildup.

#10

Which of the following muscles is responsible for breathing?

Diaphragm
Explanation

Responsible for breathing movements.

#11

Which muscle is responsible for flexing the forearm?

Brachioradialis
Explanation

Forearm flexion muscle.

#12

Which of the following muscles is NOT part of the rotator cuff?

Teres major
Explanation

Excluded from rotator cuff.

#13

Which ion is required for the release of calcium ions from the sarcoplasmic reticulum during muscle contraction?

Sodium
Explanation

Necessary for calcium release.

#14

Which muscle is responsible for flexing the thigh at the hip joint?

Psoas major
Explanation

Hip flexion muscle.

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