ATI RN
Skeletal System Questions Questions
Question 1 of 5
The hollow space in the middle of bones is filled with ...
Correct Answer: D
Rationale: The medullary cavity in long bones contains bone marrow (red for blood production, yellow for fat). Air isn’t present, blood is in vessels, cells are in matrix—not the cavity. 'Bone marrow' is correct.
Question 2 of 5
Hemopoiesis would most likely take place in the
Correct Answer: B
Rationale: Hemopoiesis (blood cell production) occurs in red bone marrow, abundant in spongy bone of vertebrae, ribs, and pelvis in adults. The hyoid lacks marrow, maxilla has limited marrow, and scapula has some but less than vertebrae, which are a primary site.
Question 3 of 5
Teeth are found in the
Correct Answer: A
Rationale: Teeth are embedded in the maxillae (upper jaw) and mandible (lower jaw) only. The palatine bones form the hard palate but do not house teeth.
Question 4 of 5
A fractured coracoid process would involve the
Correct Answer: B
Rationale: The coracoid process, a projection on the scapula, aids shoulder stability. A fracture there involves the scapula, not the clavicle, ulna, or ribs.
Question 5 of 5
Surgery to remove a tumor of the pituitary gland would involve the
Correct Answer: D
Rationale: The pituitary gland sits in the sella turcica, a depression in the sphenoid bone. Surgery (e.g., transsphenoidal) targets this area, not the mastoid, pterygoid, or styloid processes.