Which of the following is NOT a cartilagenous joint?

Correct Answer: B

Rationale: Cartilaginous joints (e.g., vertebrae via discs, rib-sternum via costal cartilage, pubic symphysis) use cartilage. Tooth sockets (gomphosis) are fibrous joints, not cartilaginous, making 'between a tooth root and its socket' correct.

Correct Answer: B

Rationale: Blood cells are produced in red bone marrow, primarily in flat bones and epiphyses of long bones. Yellow marrow, mostly fat, does not produce blood cells in adults, making 'False' correct.

Correct Answer: A

Rationale: A fossa is a shallow depression on a bone (e.g., olecranon fossa), per anatomical terminology, for articulation or muscle attachment. This is correct, making 'True' the answer.

Correct Answer: A

Rationale: The sternum’s xiphoid process is its lowest part, below the manubrium and body, often cartilaginous in youth. This is correct, making 'True' the answer.

Correct Answer: A

Rationale: The patella, a sesamoid bone, is the kneecap, protecting the knee joint. This is standard terminology, making 'True' correct.