Muscular System MCQs with Answers

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Welcome to the Muscular System MCQs with Answers. In this post, we have shared Muscular System Online Test for different competitive exams. Find practice Muscular System Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding Muscular System.

The muscular system comprises all muscles in the human body, including skeletal, cardiac, and smooth muscles. These muscles work together to facilitate movement, maintain posture, generate heat, and support organ functions. Skeletal muscles, attached to bones by tendons, are responsible for voluntary movements like walking and lifting. Cardiac muscles, found exclusively in the heart, contract rhythmically to pump blood throughout the body. Smooth muscles, located in organs and blood vessels, involuntarily contract to regulate processes such as digestion and blood flow.

Maintaining a healthy muscular system is crucial for overall mobility and health. Regular exercise that includes aerobic activities, strength training, and flexibility exercises supports muscle strength, endurance, and flexibility. A balanced diet rich in protein, vitamins (especially B and D), and minerals (like calcium and magnesium) supports muscle growth and repair.

Muscular System Online Quiz

By presenting 3 options to choose from, Muscular System Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Muscular System Questions and Answers and click over the correct answer.

Test Name: Muscular System MCQ Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quiz, simply click on question and comment below that question, so that we can update the answer in the quiz section.

Muscular System

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1 / 40

Muscles attached to bones that cause movements are called __________.

Smooth muscles

Skeletal muscles

Cardiac muscles

2 / 40

Which type of muscle tissue is found in the walls of the heart?

Smooth

Cardiac

Skeletal

3 / 40

The connective tissue that surrounds an entire muscle is called __________.

Epimysium

Endomysium

Perimysium

4 / 40

Muscles that are responsible for moving bones are called __________ muscles.

Smooth

Skeletal

Cardiac

5 / 40

What is the functional unit of contraction in a skeletal muscle fiber?

Sarcomere

Myofibril

Myosin filament

6 / 40

The functional unit of a skeletal muscle fiber is called a __________.

Sarcomere

Myofibril

Myoglobin

7 / 40

Muscles that are under involuntary control are __________ muscles.

Skeletal

Cardiac

Smooth

8 / 40

Which molecule supplies the energy for muscle contraction?

ADP

AMP

ATP

9 / 40

Which muscle type forms the walls of blood vessels?

Skeletal

Cardiac

Smooth

10 / 40

Muscles that control the diameter of the pupils and shape of the lens are __________ muscles.

Smooth

Cardiac

Skeletal

11 / 40

The connective tissue that surrounds bundles of muscle fibers is called __________.

Perimysium

Epimysium

Endomysium

12 / 40

Which type of muscle tissue is multinucleated?

Smooth

Skeletal

Cardiac

13 / 40

Which muscle type is found in the walls of hollow organs?

Cardiac

Skeletal

Smooth

14 / 40

Muscles that are under conscious control are __________ muscles.

Skeletal

Smooth

Cardiac

15 / 40

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

Serotonin

Dopamine

Acetylcholine

16 / 40

The contraction of smooth muscles is __________ compared to skeletal muscles.

Same

Slower

Faster

17 / 40

The process of muscle relaxation is called __________.

Muscle relaxation

Muscle extension

Muscle contraction

18 / 40

Muscles that pump blood throughout the body are __________ muscles.

Skeletal

Smooth

Cardiac

19 / 40

The neurotransmitter responsible for initiating a muscle contraction is __________.

Dopamine

Serotonin

Acetylcholine

20 / 40

Muscles that are responsible for the rhythmic contractions of the digestive tract are __________ muscles.

Smooth

Cardiac

Skeletal

21 / 40

The sarcoplasmic reticulum stores and releases __________ ions, essential for muscle contraction.

Sodium

Potassium

Calcium

22 / 40

Which protein is primarily responsible for muscle contraction in all muscle types?

Actin

Myosin

Troponin

23 / 40

Muscles that control the movement of food through the digestive system are __________ muscles.

Cardiac

Skeletal

Smooth

24 / 40

Muscles that are striated and under involuntary control are __________ muscles.

Cardiac

Skeletal

Smooth

25 / 40

What is the main function of skeletal muscles?

Movement

Digestion

Breathing

26 / 40

The sliding filament theory explains __________.

Muscle extension

Muscle contraction

Muscle relaxation

27 / 40

Muscles that help maintain posture and body position are __________ muscles.

Smooth

Skeletal

Cardiac

28 / 40

Muscles that are found in the walls of blood vessels are __________ muscles.

Smooth

Skeletal

Cardiac

29 / 40

Which muscle type is found in the heart?

Smooth

Skeletal

Cardiac

30 / 40

Which muscle type is involuntary and found in the walls of hollow organs?

Skeletal

Cardiac

Smooth

31 / 40

Which protein blocks the binding sites on actin molecules in a relaxed muscle?

Troponin

Myosin

Tropomyosin

32 / 40

The process of muscle contraction requires __________ ions to be released from the sarcoplasmic reticulum.

Calcium

Potassium

Sodium

33 / 40

Muscles that help move bones and joints are __________ muscles.

Smooth

Cardiac

Skeletal

34 / 40

Which ion is necessary for the release of neurotransmitters at the neuromuscular junction?

Potassium

Sodium

Calcium

35 / 40

Which type of muscle contraction occurs when the muscle lengthens under tension?

Concentric

Eccentric

Isometric

36 / 40

Muscles that are striated and under voluntary control are __________ muscles.

Skeletal

Smooth

Cardiac

37 / 40

Muscles that pump blood throughout the body are __________ muscles.

Smooth

Skeletal

Cardiac

38 / 40

Which enzyme breaks down acetylcholine to terminate muscle contraction?

Phosphatase

Acetylcholinesterase

ATP synthase

39 / 40

Muscles that are under involuntary control are __________ muscles.

Cardiac

Smooth

Skeletal

40 / 40

The neurotransmitter that initiates muscle contraction binds to __________ receptors on muscle cells.

Acetylcholine

Norepinephrine

Dopamine

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Muscular System Flashcards

Muscles that are responsible for moving bones are called __________ muscles.

Skeletal

Which muscle type is involuntary and found in the walls of hollow organs?

Smooth

The functional unit of a skeletal muscle fiber is called a __________.

Sarcomere

Which protein is primarily responsible for muscle contraction in all muscle types?

Actin

Muscles that are striated and under voluntary control are __________ muscles.

Skeletal

Which muscle type forms the walls of blood vessels?

Smooth

The neurotransmitter responsible for initiating a muscle contraction is __________.

Acetylcholine

Which ion is necessary for the release of neurotransmitters at the neuromuscular junction?

Calcium

Muscles that control the movement of food through the digestive system are __________ muscles.

Smooth

The sarcoplasmic reticulum stores and releases __________ ions, essential for muscle contraction.

Calcium

Which type of muscle tissue is multinucleated?

Skeletal

Muscles that pump blood throughout the body are __________ muscles.

Cardiac

The sliding filament theory explains __________.

Muscle contraction

What is the functional unit of contraction in a skeletal muscle fiber?

Sarcomere

Which enzyme breaks down acetylcholine to terminate muscle contraction?

Acetylcholinesterase

Muscles attached to bones that cause movements are called __________.

Skeletal muscles

Which muscle type is found in the heart?

Cardiac

The contraction of smooth muscles is __________ compared to skeletal muscles.

Slower

What is the main function of skeletal muscles?

Movement

Muscles that control the diameter of the pupils and shape of the lens are __________ muscles.

Smooth

Which molecule supplies the energy for muscle contraction?

ATP

Muscles that are under involuntary control are __________ muscles.

Smooth

Which type of muscle tissue is found in the walls of the heart?

Cardiac

Muscles that help maintain posture and body position are __________ muscles.

Skeletal

The process of muscle relaxation is called __________.

Muscle relaxation

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

Acetylcholine

Muscles that are responsible for the rhythmic contractions of the digestive tract are __________ muscles.

Smooth

The connective tissue that surrounds an entire muscle is called __________.

Epimysium

Muscles that are under conscious control are __________ muscles.

Skeletal

Which protein blocks the binding sites on actin molecules in a relaxed muscle?

Tropomyosin

Muscles that are found in the walls of blood vessels are __________ muscles.

Smooth

The process of muscle contraction requires __________ ions to be released from the sarcoplasmic reticulum.

Calcium

Muscles that help move bones and joints are __________ muscles.

Skeletal

Which muscle type is found in the walls of hollow organs?

Smooth

The neurotransmitter that initiates muscle contraction binds to __________ receptors on muscle cells.

Acetylcholine

Muscles that are striated and under involuntary control are __________ muscles.

Cardiac

The connective tissue that surrounds bundles of muscle fibers is called __________.

Perimysium

Muscles that pump blood throughout the body are __________ muscles.

Cardiac

Which type of muscle contraction occurs when the muscle lengthens under tension?

Eccentric

Muscles that are under involuntary control are __________ muscles.

Cardiac

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admin6 days ago

0 1 2 minutes read