Free Support and Movement MCQs with Answers

• A. Intervertebral disc
• B. Skul bones
• C. Costal cartilage
• D. Pubic symphysis

Explanation: The bones of the skull are an example. The immovable joints between the plates of the skull are known as sutures.

• A. Fibrous joints
• B. Synovial joints
• C. Cartilaginous joints
• D. Gliding joints

Explanation: Both pubic symphysis and intervertebral discs are types of cartilaginous joints.

• A. Thick, soft, and flexible
• B. Thin, soft, and flexible
• C. Thin, hard, and immovable
• D. Thick, hard, and flexible

Explanation: At joints, the exoskeleton is quite thin and flexible as it lacks a cuticle and helps in the movement of muscles of the arthropods.

• A. Troponin
• B. Tropomyosin
• C. Actin
• D. Elastin
• E. Collagen

Explanation: Explanation for this question will be added soon.

• A. I-band
• B. H-zone
• C. A-band
• D. Sarcomere
• E. Region between two M-lines

Explanation: Explanation for this question will be added soon.

• A. I-band shorten
• B. A-band shortens
• C. H-zone disappear
• D. Z-lines move closer

Explanation: Among the given options, the event that does not occur during muscle contraction is b) A-band shortens.

• A. Calcium storage
• B. Protein synthesis
• C. Lipid metabolism
• D. Strong cell wastes

Explanation: The sarcoplasmic reticulum of muscle fibers is mainly responsible for "Calcium storage." It plays a crucial role in regulating calcium ion…

• A. Decrease in body temperature after death.
• B. Accumulation of rigid proteins molecules in arcoplasm.
• C. Death of tissue due to unavailability of O2
• D. Unavailability of ATP, which is necessary to break the link between actin and myosin.

Explanation: Rigor mortis is a postmortem process that occurs in the muscles of a deceased individual, and it is caused by a lack of ATP (adenosine…

• A. 2
• B. 4
• C. 6
• D. 8

Explanation: The myosin filament is surrounded by six actin filaments and each actin filament is in turn surrounded by three myosin filaments.

• A. Z-line
• B. Actin
• C. Sarcomere
• D. Sarcolemma

Explanation: The basic contractile unit of the myofibril is the sarcomere. It is a portion between two Z-lines and this specific unit undergoes…

• A. Closer together
• B. Farther apart
• C. Towards the Z-line
• D. Both Options B and C are correct

Explanation: When the cross‐bridges bind to actin, they will pivot in such a manner to cause the actin filaments to slide closer together.

• A. Motor system
• B. Motor unit
• C. Motor set
• D. Fascicle
• E. None of the above

Explanation: Explanation for this question will be added soon.

• A. Bundle of connective tissue
• B. Bundle of myofibrils
• C. Bundle of muscle fibers
• D. Muscle cells

Explanation: A muscle fascicle is a bundle of skeletal muscle fibres surrounded by perimysium, a type of connective tissue.

• A. Smooth muscle
• B. Cardiac muscle
• C. Skeletal muscle
• D. Visceral muscle

Explanation: Refer to the following table from Punjab Board Textbook.

• A. Ligaments
• B. Cartilage
• C. Membranes
• D. Tendons

Explanation: A tendon is a fibrous connective tissue which attach bones to muscles.

• A. One
• B. Two
• C. Three
• D. Many....

Explanation: Smooth muscle cells are spindle shaped, have a single, centrally located nucleus, and lack striations. They are called involuntary muscles.

• A. Intercalated disc
• B. Multinucleate cells
• C. Light and dark bands
• D. Contractile sarcomere

Explanation: Cardiac muscle: It is a contractile tissue present in the heart. The muscle fibres are cylindrical, branched and uninucleate.

• A. Muscle fibrin
• B. Muscle fibers
• C. Sarcomere
• D. None of these

Explanation: Muscle contraction occurs when sarcomeres within muscle fibers shorten.

• A. Tendon
• B. Ligament
• C. Reticular Tissue
• D. Cartilage

Explanation: Option: A Tendons attach muscles to bones and are non-elastic. PTB XII Chap # 16 page # 42 Option B : Ligaments attach bone to bone and…

• A. myofibril
• B. Z-line
• C. M-line
• D. Fibroin

Explanation: Correct option:A(Definition) The basic unit of muscle fiber is the myofibril.