The mastoid process is a structural prominence of the

Correct Answer: D

Rationale: The mastoid process, a bony projection behind the ear, is part of the temporal bone. The sphenoid, parietal, and occipital bones lack this feature.

Correct Answer: D

Rationale: Tendons (connecting muscle to bone) and ligaments (connecting bone to bone) are both dense, fibrous connective tissues composed primarily of collagen fibers. While ‘connective tissue’ (B) is broadly correct, ‘fibrous connective tissue’ (D) is more specific and accurate, distinguishing them from other connective tissue types like adipose or loose areolar tissue.

Correct Answer: D

Rationale: Hyaline cartilage is avascular (lacks blood capillaries), contains cells (chondrocytes) in lacunae (spaces), but does not have prominent fibers like elastic or fibrous cartilage. Its matrix is smooth and glassy, making ‘fibres’ the correct feature it lacks.

Correct Answer: B

Rationale: Ribs, sternum, and scapulae are flat bones, characterized by their thin, broad structure. Flat bones provide protection (e.g., ribs for lungs) and surfaces for muscle attachment (e.g., scapulae). They aren’t long (elongated), short (cuboidal), or irregular (complexly shaped).

Correct Answer: B

Rationale: The sternum (breastbone) is a flat bone in the chest that, along with the ribs, forms the rib cage, primarily protecting the heart. It also shields the lungs to some extent, but its central role is heart protection. The brain is protected by the cranium, and the liver is below the diaphragm.