ATI RN
Multiple Choice Questions About Skeletal System Questions
Question 1 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 2 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 3 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.
Question 4 of 5
What is the only bone in the body that does not articulate with another bone?
Correct Answer: B
Rationale: The hyoid bone, in the neck, is unique as it does not articulate with any bone, suspended by ligaments. The patella, phalanges, and occipital all articulate, making 'hyoid' correct.
Question 5 of 5
The ribs that attach to the thoracic vertebrae and directly to the sternum via costal cartilage are called ribs.
Correct Answer: C
Rationale: Vertebrosternal (true) ribs (pairs 1-7) attach to thoracic vertebrae and directly to the sternum via their own costal cartilage. Vertebral are floating, and vertebrochondral share cartilage, making 'vertebrosternal' correct (incomplete options assumed).