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Muscular System and Physiology Quiz

#1

Which type of muscle is striated and under voluntary control?

Skeletal muscle
Explanation

Striated and voluntary

#2

What is the primary function of the muscular system?

Producing movement
Explanation

Produces movement

#3

Which muscle is known as the 'smiling muscle'?

Zygomaticus
Explanation

Known for smiling

#4

Which type of muscle is responsible for involuntary movements like digestion?

Smooth muscle
Explanation

Involuntary movements like digestion

#5

Which muscle is responsible for breathing?

Diaphragm
Explanation

Responsible for breathing

#6

Which muscle is located in the calf of the leg?

Soleus
Explanation

Located in the calf

#7

Which neurotransmitter is released at the neuromuscular junction to stimulate muscle contraction?

Acetylcholine
Explanation

Stimulates muscle contraction

#8

What is the term for the smallest functional unit of a muscle fiber?

Sarcomere
Explanation

Smallest unit of muscle fiber

#9

Which neurotransmitter is released at the neuromuscular junction to initiate muscle contraction?

Acetylcholine
Explanation

Initiates muscle contraction

#10

Which muscle is responsible for extending the leg?

Quadriceps
Explanation

Extends the leg

#11

Which of the following muscle types is striated and voluntary?

Skeletal muscle
Explanation

Striated and voluntary

#12

Which muscle is responsible for shoulder abduction?

Deltoid
Explanation

Responsible for shoulder abduction

#13

Which of the following is a condition characterized by the inflammation of muscle tissue?

Myositis
Explanation

Inflammation of muscle tissue

#14

Which hormone stimulates muscle growth and repair?

Testosterone
Explanation

Stimulates muscle growth and repair

#15

Which neurotransmitter is responsible for muscle relaxation?

Gamma-aminobutyric acid (GABA)
Explanation

Responsible for muscle relaxation

#16

Which hormone regulates calcium levels in the blood and impacts muscle contraction?

Parathyroid hormone
Explanation

Regulates calcium levels and muscle contraction

#17

Which molecule binds to calcium ions during muscle contraction?

Troponin
Explanation

Binds to calcium ions during muscle contraction

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