Biomechanics MCQ

Q1. The longest bone in the human body is:

Correct Answer: B

Femur is the longest human bone.

Q2. Which type of joint permits rotational movement?

Correct Answer: B

Ball and socket joints permit rotation.

Q3. The point of support or axis about which rotation takes place is called:

Correct Answer: A

Fulcrum is the pivot point in levers.

Q4. In which class of lever is the load between the fulcrum and effort?

Correct Answer: B

Second class lever: load in middle.

Q5. Which connective tissue connects bone to bone?

Correct Answer: B

Ligaments connect bones.

Q6. The skeletal system function includes:

Correct Answer: D

All listed functions are correct.

Q7. Which muscle type is voluntary?

Correct Answer: C

Skeletal muscle is voluntary.

Q8. The term "kinematics" refers to:

Correct Answer: B

Kinematics studies motion without forces.

Q9. Which of the following is a lever class?

Correct Answer: C

Levers classified by arrangement: First, Second, Third.

Q10. Torque is the:

Correct Answer: B

Torque is the moment arm times force.

Q11. Muscle attached to bones that provides movement is:

Correct Answer: C

Skeletal muscle moves bones.

Q12. Biomechanics is the study of:

Correct Answer: B

It applies mechanics to biological systems.

Q13. Which skeletal system division supports the limbs?

Correct Answer: B

Appendicular skeleton supports limbs.

Q14. The elbow joint is an example of which type of joint?

Correct Answer: A

Elbow is a hinge joint.

Q15. In human locomotion, the pivot axis is:

Correct Answer: A

Hinges rotate around horizontal axis.

Q16. The muscle lengthening under load during forced extension is called:

Correct Answer: B

Eccentric means lengthening contraction.

Q17. Which plane divides the body into front and back halves?

Correct Answer: A

Frontal plane divides front/back.

Q18. The axis of rotation for flexion and extension occurs in:

Correct Answer: C

Flexion and extension occur about frontal axis.

Q19. The force generated inside muscles is:

Correct Answer: B

Internal contractile force produces movement.

Q20. A motor unit consists of:

Correct Answer: B

A motor unit includes a motor neuron and its fibers.

Q21. What is the functional unit of the muscle?

Correct Answer: C

Sarcomere is muscle’s contractile unit.

Q22. Which connective tissue covers individual muscle fibers?

Correct Answer: C

Endomysium surrounds each fiber.

Q23. Which two bones form the shoulder joint?

Correct Answer: A

Humerus and scapula form shoulder.

Q24. During running, ground reaction forces primarily affect:

Correct Answer: B

Ground reaction affects joints.

Q25. The sagittal plane divides the body into:

Correct Answer: A

Sagittal divides left/right halves.

Q26. The lever arm is:

Correct Answer: A

Lever arm is perpendicular distance.

Q27. Which of the following is a function of ligaments?

Correct Answer: B

Ligaments link bones.

Q28. Flexion of the forearm decreases the angle at the:

Correct Answer: A

Flexion reduces elbow angle.

Q29. Name the joint type found in the human wrist:

Correct Answer: D

Wrist joints are gliding joints.

Q30. Muscle contraction is triggered by:

Correct Answer: A

Calcium releases trigger contraction.

Q31. The muscle responsible for extension at the elbow is:

Correct Answer: B

Triceps brachii extends the elbow.

Q32. Biomechanics applies mechanical principles to:

Correct Answer: B

Study of mechanical laws in living bodies.

Q33. Which lever class has the effort between the fulcrum and load?

Correct Answer: C

Third class lever has effort in middle.

Q34. The center of mass for most human body is located near:

Correct Answer: A

Center of mass is near pelvis.

Q35. The muscle spindle is part of which system?

Correct Answer: A

Sensory receptor within muscles.

Q36. Which energy form is stored in a stretched tendon?

Correct Answer: A

Elastic potential energy.

Q37. The most abundant type of bone in the human skeleton is:

Correct Answer: A

Cortical bone is the dense type covering outer surface.

Q38. Which movement decreases the angle between bones at a joint?

Correct Answer: A

Flexion reduces angle.

Q39. A fulcrum in biomechanics is:

Correct Answer: C

Fulcrum is pivot or rotation axis.

Q40. Torque is calculated as:

Correct Answer: A

Torque = force Γ— perpendicular distance.

Latest Blogs