Biology · General Awareness

Muscle Biology

798 Questions

Muscle biology covers the structures, functions, and contraction mechanisms of skeletal, cardiac, and smooth muscles. Test questions target filaments, stimuli, and specific muscle roles. A clear understanding helps secure marks in biology sections.

Skeletal muscle controlCardiac muscle propertiesMuscle contraction mechanismActin and myosin filamentsMuscle functions

Muscle Biology Questions

Multiple choice

Which of the following muscles is/are immune to fatigue?

  1. Heart muscle

  2. Thigh muscle

  3. Eye muscle

  4. Skeletal muscle

  5. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Heart muscle is a cardiac muscle. It is voluntary in structure, but involuntary in function. Thus, heart muscle is immune to fatigue.

Multiple choice

Which of the following names is/are also used for voluntary muscle?

A. Skeletal muscle B. Smooth muscle C. Striated muscle D. Cardiac muscle

  1. B and D

  2. A and C

  3. C and D

  4. A and B

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct answer. Voluntary muscles are called skeletal muscles because they are mostly attached to bones and help in body movement. Voluntary muscles are also called striated muscles because these muscles show alternate light and dark bands or striations, when strained appropriately.

Multiple choice

Which of the following muscles is used while smiling?

  1. Levator anguli oris

  2. Depressor anguli oris

  3. Levator labii superioris

  4. Depressor labii inferioris
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Levator anguli oris originates from maxilla and is used while smiling. It elevates the angle of mouth.

Multiple choice

Which of the following signifies cachexia?

  1. Process of deriving muscle tissues

  2. An autoimmune muscle disorder

  3. A body wasting syndrome

  4. A neuromuscular disease
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cachexia is a body wasting syndrome characterised by loss of weight, muscle atrophy, fatigue, weakness and significant loss of appetite in a person who is not actively trying to lose weight.

Multiple choice

Quadriceps femoris muscle is a muscle of thigh. It is the

  1. most physical work performing muscle

  2. strongest muscle by weight in the female human body

  3. strongest muscle by ability to exert force on external object

  4. strongest muscle by force exerted by the muscle itself
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The strongest muscle is the quadriceps femoris, if strength refers to the force exerted by the muscle itself.

Multiple choice

Directions: Read the following information and answer the given question.

Raman had his first day at gym today. He had exercised hard over there for the first time. After reaching home he realised his calves are paining. His mother advised him to take rest and not to get worried as he had got cramps. Raman followed his mother's advice.

Which of the following substances is accumulated in muscles during cramps formation?

  1. Ethanol

  2. Glucose

  3. Lactic acid

  4. Pyruvate
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

During strenuous exercise, muscles undergo anaerobic respiration when oxygen supply is insufficient, leading to the accumulation of lactic acid, which causes muscle fatigue and cramps.