Muscle Types and Properties – MCQs 50 Score: 0 Attempted: 0/50 Subscribe 1. Which of the following is a voluntary muscle? (A) Cardiac (B) Smooth (C) Skeletal (D) None of the above 2. Which muscle type is involuntary and found in organs? (A) Skeletal (B) Smooth (C) Cardiac (D) All of the above 3. Cardiac muscle is: (A) Voluntary and striated (B) Involuntary and striated (C) Voluntary and non-striated (D) Involuntary and non-striated 4. Skeletal muscles are attached to bones by: (A) Ligaments (B) Tendons (C) Cartilage (D) Fascia 5. Smooth muscles are primarily controlled by: (A) Somatic nervous system (B) Autonomic nervous system (C) Voluntary control (D) Cerebral cortex 6. Cardiac muscles are found in the: (A) Heart (B) Lungs (C) Stomach (D) Skeletal system 7. Which property allows muscles to respond to stimuli? (A) Contractility (B) Excitability (C) Extensibility (D) Elasticity 8. The ability of muscle to shorten and produce force is called: (A) Elasticity (B) Contractility (C) Excitability (D) Extensibility 9. The ability of muscle to stretch without damage is called: (A) Excitability (B) Contractility (C) Extensibility (D) Elasticity 10. The ability of muscle to return to its original length after stretching is: (A) Elasticity (B) Excitability (C) Contractility (D) Extensibility 11. Which type of muscle has intercalated discs? (A) Skeletal (B) Smooth (C) Cardiac (D) All of the above 12. Smooth muscle fibers are: (A) Long, cylindrical, and striated (B) Spindle-shaped and non-striated (C) Branched and striated (D) Short and striated 13. Skeletal muscle fibers are: (A) Branched (B) Spindle-shaped (C) Long, cylindrical, and striated (D) Short and smooth 14. Cardiac muscle fibers are: (A) Branched and striated (B) Spindle-shaped (C) Cylindrical and striated (D) Smooth and involuntary 15. Which muscle type is fatigue-resistant due to many mitochondria? (A) Skeletal (B) Smooth (C) Cardiac (D) All 16. Skeletal muscles are primarily responsible for: (A) Pumping blood (B) Maintaining posture and voluntary movement (C) Moving food through intestines (D) Reflex actions only 17. Which muscle type is controlled by conscious thought? (A) Skeletal (B) Smooth (C) Cardiac (D) None 18. Cardiac muscles contract without external stimulation due to: (A) Somatic innervation (B) Pacemaker cells (C) Reflex action (D) Hormones only 19. Smooth muscles are found in: (A) Walls of blood vessels (B) Digestive tract (C) Urinary bladder (D) All of the above 20. Skeletal muscles are composed of: (A) Single nucleus fibers (B) Multi-nucleated fibers (C) No nuclei (D) Branched cells 21. Which property allows muscles to generate heat? (A) Excitability (B) Thermogenesis (C) Elasticity (D) Contractility 22. The smallest contractile unit of skeletal muscle is: (A) Myofibril (B) Sarcomere (C) Fascicle (D) Actin filament 23. Skeletal muscles are organized into bundles called: (A) Fibers (B) Fascicles (C) Myofibrils (D) Actin filaments 24. Cardiac muscles are connected via: (A) Fascia (B) Ligaments (C) Intercalated discs (D) Tendons 25. Smooth muscles contract: (A) Quickly and voluntarily (B) Slowly and involuntarily (C) Slowly and voluntarily (D) Quickly and involuntarily 26. Skeletal muscle contraction requires: (A) Calcium ions (B) ATP (C) Both calcium ions and ATP (D) None 27. The neurotransmitter responsible for skeletal muscle contraction is: (A) Dopamine (B) Serotonin (C) Acetylcholine (D) Norepinephrine 28. Cardiac muscle contraction is initiated by: (A) Autonomic nervous system only (B) Pacemaker cells (C) Hormones only (D) Voluntary control 29. Skeletal muscles exhibit which type of fatigue? (A) Mental fatigue (B) Peripheral fatigue (C) Cardiac fatigue (D) Smooth muscle fatigue 30. The sliding filament theory describes: (A) Bone movement (B) Muscle contraction mechanism (C) Joint rotation (D) Ligament elasticity 31. Which filament forms the thick filament in skeletal muscle? (A) Actin (B) Myosin (C) Troponin (D) Tropomyosin 32. Which filament forms the thin filament in skeletal muscle? (A) Myosin (B) Actin (C) Titin (D) Nebulin 33. Smooth muscles lack: (A) Sarcomeres (B) Actin (C) Myosin (D) Nuclei 34. Cardiac muscle contraction is: (A) Tonic (B) Phasic (C) Both tonic and phasic (D) Smooth only 35. Which property allows skeletal muscle to maintain posture? (A) Elasticity (B) Tonic contraction (C) Reflexive contraction (D) Excitability 36. Isometric contraction produces: (A) Movement and shortening (B) Tension without movement (C) No tension (D) Rapid relaxation 37. Isotonic contraction produces: (A) No movement (B) Muscle shortening or lengthening (C) Only tension (D) Relaxation 38. Concentric contraction occurs when: (A) Muscle lengthens under tension (B) Muscle shortens under tension (C) Muscle is at rest (D) Muscle relaxes 39. Eccentric contraction occurs when: (A) Muscle shortens under tension (B) Muscle lengthens under tension (C) Muscle is inactive (D) Muscle contracts without tension 40. Smooth muscle contraction is triggered by: (A) Nervous stimuli (B) Hormones (C) Stretch (D) All of the above 41. Skeletal muscles are responsible for: (A) Posture (B) Locomotion (C) Heat generation (D) All of the above 42. Cardiac muscle cells are: (A) Multinucleated (B) Mononucleated (C) Non-striated (D) Voluntary 43. Smooth muscle cells are: (A) Branched (B) Cylindrical and striated (C) Spindle-shaped and uninucleated (D) Multinucleated 44. The term “tonicity” refers to: (A) Muscle length (B) Muscle tension at rest (C) Muscle shortening (D) Muscle fatigue 45. Skeletal muscle fiber types include: (A) Type I (slow-twitch) (B) Type II (fast-twitch) (C) Both A and B (D) None 46. Type I fibers are: (A) Fatigue-resistant, slow contraction (B) Fast, fatigable fibers (C) Found only in cardiac muscle (D) Non-contractile 47. Type II fibers are: (A) Slow-twitch (B) Fast-twitch, high power (C) Non-striated (D) Only in smooth muscle 48. Recruitment of motor units increases: (A) Muscle force (B) Muscle length (C) Muscle fatigue (D) Tendon elasticity 49. ATP is required for: (A) Muscle contraction (B) Muscle relaxation (C) Both contraction and relaxation (D) None 50. Muscle fatigue is due to: (A) Lack of ATP (B) Accumulation of lactic acid (C) Ionic imbalance (D) All of the above Related Posts:Muscle Attachments and Actions – MCQsMuscle Forces and Contractions – MCQsMuscle Contractions (Isometric, Isotonic, Isokinetic) – MCQsMuscle Mechanics (Length-Tension Relationship, Force-Velocity) – MCQsTissue Biomechanics (Bone, Ligament, Tendon, Muscle) – MCQsMuscle Mechanics (Length-Tension, Force-Velocity) – MCQs