List three ways to take care of your bones:

Correct Answer: A

Rationale: Bones require protection and nutrition to stay healthy. Wearing a helmet (Choice A) prevents skull fractures during activities like biking. Other correct options from the document include wearing pads, using sports equipment, avoiding trampolines, eating calcium-rich foods, and being active. Sitting all day, eating candy, and skipping exercise weaken bones, making 'wear a helmet' a representative correct choice.

Correct Answer: C

Rationale: The diaphysis, or shaft, of a long bone is primarily compact bone, providing strength and support. Spongy bone is in the epiphyses, hyaline cartilage covers joint surfaces, and fibrous tissue forms membranes like the periosteum, making 'compact bone' the correct answer.

Correct Answer: B

Rationale: Spongy bone consists of a network of trabeculae, bony plates that provide lightweight strength and house red marrow. Lamellae are in compact bone, lacunae contain osteocytes, and canaliculi connect them, making 'trabeculae' the correct answer.

Correct Answer: C

Rationale: The epiphyseal plate (growth plate), between the epiphysis and diaphysis, is where long bones grow in length via cartilage ossification. The epiphysis is the end, diaphysis the shaft, and periosteum the outer layer, making 'epiphyseal plate' correct.

Correct Answer: B

Rationale: Paranasal sinuses (frontal, maxillary, etc.) drain into the nasal cavity via ducts. Mastoid sinuses (air cells in the temporal bone) connect to the middle ear, not inner ear, for drainage and pressure, making 'nose: middle ear' correct.