Skeletal Muscles MCQs with Answers

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

Skeletal muscles are voluntary muscles that are attached to bones and are responsible for facilitating movement, maintaining posture, and generating heat. These muscles are composed of long, cylindrical fibers that contract and relax to produce motion. Skeletal muscles work in pairs, with one muscle contracting to produce movement and the other relaxing to allow the movement. This coordinated action is essential for activities ranging from walking and running to lifting objects and breathing.

Maintaining healthy skeletal muscles is crucial for overall fitness and mobility. Regular strength training exercises, such as weight lifting, resistance training, and bodyweight exercises, help build muscle mass, strength, and endurance. A diet rich in protein, along with essential nutrients like amino acids, vitamins B and D, and minerals such as magnesium and potassium, supports muscle repair and growth.

Skeletal Muscles Online Quiz

By presenting 3 options to choose from, Skeletal Muscles 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 Skeletal Muscles Questions and Answers and click over the correct answer.

Test Name: Skeletal Muscles 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.

Skeletal Muscles

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1 / 40

The sliding filament theory explains __________.

Muscle extension

Muscle relaxation

Muscle contraction

2 / 40

Skeletal muscles are responsible for maintaining __________ posture.

Sitting

Upright

Lying

3 / 40

Which molecule stores and releases calcium ions in skeletal muscle contraction?

Mitochondria

Sarcoplasmic reticulum

Golgi apparatus

4 / 40

Skeletal muscles primarily rely on __________ for energy during contraction.

ATP

Glucose

Oxygen

5 / 40

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

Calcium

Potassium

Sodium

6 / 40

Which enzyme breaks down acetylcholine to terminate muscle contraction?

ATP synthase

Phosphatase

Acetylcholinesterase

7 / 40

What is the main function of skeletal muscles?

Breathing

Digestion

Movement

8 / 40

Skeletal muscles are attached to bones by ____________.

Cartilage

Ligaments

Tendons

9 / 40

Which part of a skeletal muscle fiber stores calcium ions?

Golgi apparatus

Mitochondria

Sarcoplasmic reticulum

10 / 40

What is the term for the site where a motor neuron meets a skeletal muscle fiber?

Neuromuscular junction

Synaptic cleft

Axon terminal

11 / 40

Skeletal muscles contribute to the regulation of __________.

Body temperature

Hormone levels

Blood pressure

12 / 40

Skeletal muscles can generate force through __________ contractions.

Isotonic

Isometric

Isokinetic

13 / 40

Skeletal muscles work in __________ with bones to produce movement.

Tandem

Conjunction

Coordination

14 / 40

Skeletal muscles contract when __________ binds to receptors on muscle cells.

Dopamine

Norepinephrine

Acetylcholine

15 / 40

Skeletal muscles appear __________ under a microscope due to the arrangement of actin and myosin filaments.

Smooth

Cardiac

Striated

16 / 40

Which energy molecule is used to regenerate ATP during muscle contraction?

Glycogen

Creatine phosphate

Lactic acid

17 / 40

What is the term for the region where actin and myosin filaments overlap during muscle contraction?

H zone

A band

I band

18 / 40

What is the term for the ability of skeletal muscles to return to their original length after contraction?

Elasticity

Excitability

Contractility

19 / 40

Skeletal muscles are involved in __________.

Involuntary movements

Voluntary movements

Reflexes

20 / 40

Skeletal muscles are under the control of the __________ nervous system.

Autonomic

Somatic

Enteric

21 / 40

The contraction of skeletal muscles is regulated by __________ ions.

Sodium

Potassium

Calcium

22 / 40

Which neurotransmitter causes the release of calcium ions from the sarcoplasmic reticulum?

Norepinephrine

Acetylcholine

Dopamine

23 / 40

What is the term for the increase in muscle fiber size due to resistance training?

Atrophy

Hyperplasia

Hypertrophy

24 / 40

Which structure surrounds each individual muscle fiber?

Epimysium

Endomysium

Perimysium

25 / 40

Which protein is primarily responsible for muscle contraction in skeletal muscles?

Actin

Myosin

Troponin

26 / 40

Skeletal muscles are composed of ___________ and connective tissue.

Muscle fibers

Neurons

Blood vessels

27 / 40

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

Isometric

Concentric

Eccentric

28 / 40

Skeletal muscles are made up of bundles of __________ called fascicles.

Neurons

Muscle fibers

Connective tissue

29 / 40

What is the term for the thick filament in skeletal muscle that interacts with actin during contraction?

Actin

Troponin

Myosin

30 / 40

Which neurotransmitter is released from motor neurons to initiate muscle contraction?

Dopamine

Acetylcholine

Serotonin

31 / 40

Which molecule directly supplies the energy for muscle contraction?

ATP

ADP

AMP

32 / 40

Which type of muscle tissue is multinucleated?

Cardiac muscle

Smooth muscle

Skeletal muscle

33 / 40

Skeletal muscles are attached to bones that act as __________.

Supports

Anchors

Levers

34 / 40

What is the term for the smallest functional unit of skeletal muscle contraction?

Sarcomere

Myosin filament

Myofibril

35 / 40

Which type of muscle tissue is striated?

Skeletal muscle

Cardiac muscle

Smooth muscle

36 / 40

The basic functional unit of a skeletal muscle fiber is the __________.

Myoglobin

Sarcomere

Myofibril

37 / 40

What is the term for the protein that forms thick filaments in skeletal muscle fibers?

Troponin

Actin

Myosin

38 / 40

Skeletal muscles are also known as __________ muscles.

Smooth

Voluntary

Cardiac

39 / 40

Skeletal muscles are composed of bundles of __________ surrounded by connective tissue.

Muscle fibers

Blood vessels

Neurons

40 / 40

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

Troponin

Myosin

Tropomyosin

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Skeletal Muscles Flashcards

Skeletal muscles are attached to bones by ____________.

Tendons

Which protein is primarily responsible for muscle contraction in skeletal muscles?

Actin

Skeletal muscles are also known as __________ muscles.

Voluntary

Which type of muscle tissue is striated?

Skeletal muscle

Skeletal muscles are under the control of the __________ nervous system.

Somatic

The basic functional unit of a skeletal muscle fiber is the __________.

Sarcomere

What is the main function of skeletal muscles?

Movement

Which molecule stores and releases calcium ions in skeletal muscle contraction?

Sarcoplasmic reticulum

Skeletal muscles contract when __________ binds to receptors on muscle cells.

Acetylcholine

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

Calcium

Skeletal muscles are composed of ___________ and connective tissue.

Muscle fibers

Skeletal muscles appear __________ under a microscope due to the arrangement of actin and myosin filaments.

Striated

The sliding filament theory explains __________.

Muscle contraction

Which enzyme breaks down acetylcholine to terminate muscle contraction?

Acetylcholinesterase

What is the term for the ability of skeletal muscles to return to their original length after contraction?

Elasticity

Skeletal muscles work in __________ with bones to produce movement.

Coordination

Which neurotransmitter is released from motor neurons to initiate muscle contraction?

Acetylcholine

Skeletal muscles primarily rely on __________ for energy during contraction.

ATP

What is the term for the site where a motor neuron meets a skeletal muscle fiber?

Neuromuscular junction

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

Tropomyosin

Skeletal muscles are involved in __________.

Voluntary movements

Which molecule directly supplies the energy for muscle contraction?

ATP

What is the term for the smallest functional unit of skeletal muscle contraction?

Sarcomere

Which type of muscle tissue is multinucleated?

Skeletal muscle

Skeletal muscles are attached to bones that act as __________.

Levers

Which neurotransmitter causes the release of calcium ions from the sarcoplasmic reticulum?

Acetylcholine

Skeletal muscles can generate force through __________ contractions.

Isotonic

The contraction of skeletal muscles is regulated by __________ ions.

Calcium

What is the term for the protein that forms thick filaments in skeletal muscle fibers?

Myosin

Which structure surrounds each individual muscle fiber?

Endomysium

Skeletal muscles are responsible for maintaining __________ posture.

Upright

What is the term for the increase in muscle fiber size due to resistance training?

Hypertrophy

Which energy molecule is used to regenerate ATP during muscle contraction?

Creatine phosphate

Skeletal muscles are made up of bundles of __________ called fascicles.

Muscle fibers

What is the term for the thick filament in skeletal muscle that interacts with actin during contraction?

Myosin

Which part of a skeletal muscle fiber stores calcium ions?

Sarcoplasmic reticulum

Skeletal muscles contribute to the regulation of __________.

Body temperature

What is the term for the region where actin and myosin filaments overlap during muscle contraction?

A band

Skeletal muscles are composed of bundles of __________ surrounded by connective tissue.

Muscle fibers

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

Eccentric

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admin6 days ago

0 0 2 minutes read