Q31. Which type of bone is the vertebra classified as?
A) Long bone
B) Short bone
C) Flat bone
D) Irregular bone
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Correct Answer: D) Irregular bone
Explanation: The vertebrae are classified as irregular bones due to their complex shapes, which help protect the spinal cord and support the body
Q32. What is the smallest bone in the human body?
A) Stapes
B) Incus
C) Malleus
D) Femur
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Correct Answer: A) Stapes
Explanation: The stapes, located in the middle ear, is the smallest bone in the human body. It plays a crucial role in the mechanism of hearing.
Q33. Which joint is the largest in the human body?
A) Elbow
B) Knee
C) Hip
D) Shoulder
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Correct Answer: B) Knee
Explanation: The knee joint is the largest joint in the human body. It functions as a hinge, allowing the leg to bend and straighten.
Q34. What type of joint is found in the wrist?
A) Hinge
B) Pivot
C) Ball and socket
D) Gliding
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Correct Answer: D) Gliding
Explanation: The wrist contains gliding joints, which allow the bones to glide past one another in any direction.
Q35. Which bone is commonly known as the kneecap?
A) Patella
B) Tibia
C) Fibula
D) Femur
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Correct Answer: A) Patella
Explanation: The patella, or kneecap, is the bone that protects the knee joint.
Q36. What connects bones to muscles?
A) Ligaments
B) Tendons
C) Cartilage
D) Fascia
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Correct Answer: B) Tendons
Explanation: Tendons are fibrous connective tissues that attach muscles to bones, facilitating movement.
Q37. What is the main mineral found in bones?
A) Iron
B) Magnesium
C) Calcium
D) Potassium
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Correct Answer: C) Calcium
Explanation: Calcium is the main mineral found in bones, providing strength and structure.
Q38. Which bone is located in the lower jaw?
A) Maxilla
B) Zygomatic
C) Mandible
D) Nasal
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Correct Answer: C) Mandible
Explanation: The mandible is the bone that forms the lower jaw and holds the lower teeth in place.
Q39. How many ribs does a typical human have?
A) 12
B) 24
C) 36
D) 48
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Correct Answer: B) 24
Explanation: Typically, a human has 24 ribs, 12 on each side of the rib cage.
Q40. What is the function of red marrow found in bones?
A) To store fat
B) To produce blood cells
C) To provide structural support
D) To cushion joints
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Correct Answer: B) To produce blood cells
Explanation: Red marrow is responsible for producing red blood cells, white blood cells, and platelets.