ATI RN
Multiple Choice Questions About Skeletal System Questions
Question 1 of 5
Identify the classifications of bones based upon shape.
Correct Answer: D
Rationale: Bones are classified by shape: long (e.g., femur), short (e.g., carpals), flat (e.g., scapula), irregular (e.g., vertebrae), and sometimes sesamoid (round, e.g., patella). 'Square,' 'cubed,' and 'triangular' are not standard categories; 'round' aligns with sesamoid bones, making 'long, short, flat, irregular and round' the most accurate.
Question 2 of 5
Spongy bone is characterized by bony plates called
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.
Question 3 of 5
Bones grow in length at the:
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.
Question 4 of 5
The paranasal sinuses drain into the and the mastoid sinuses drain into the
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.
Question 5 of 5
The bones that serve as pathways for ducts that carry tears from the eyes to the nose is the bone.
Correct Answer: B
Rationale: The lacrimal bones, near the eyes, contain the nasolacrimal duct, channeling tears to the nasal cavity. The ethmoid, maxillae, and nasal bones are nearby but lack this duct, making 'lacrimal' correct.