ATI RN
Multiple Choice Questions Skeletal System Questions
Question 1 of 5
There are six different types of synovial joints. What type of synovial joint is the wrist?
Correct Answer: B
Rationale: The wrist (radiocarpal joint) is a condyloid joint, allowing flexion, extension, abduction, and adduction. Pivot is rotation (e.g., neck), saddle is thumb, and gliding is sliding, making 'Condyloid' correct.
Question 2 of 5
Which one of the following is a bone that is embedded within a tendon?
Correct Answer: D
Rationale: Sesamoid bones (e.g., patella) ossify within tendons, enhancing leverage. Sphenoid and ethmoid are cranial, hyoid is free-floating—none are in tendons. Answer is D, per the document.
Question 3 of 5
Where are blood vessels in compact bone found?
Correct Answer: D
Rationale: Blood vessels in compact bone are in the central (Haversian) canal of osteons, supplying osteocytes via canaliculi. Canaliculi, periosteum, and lacunae don’t house vessels. Answer is D, per the document.
Question 4 of 5
Where is the epiphyseal plate of a long bone located?
Correct Answer: B
Rationale: The epiphyseal plate (growth plate) is hyaline cartilage between the diaphysis (shaft) and epiphysis (end), ossifying into a line in adults. Answer is B, per the document.
Question 5 of 5
The formula for the inorganic salts in bone is
Correct Answer: C
Rationale: Hydroxyapatite, Ca₁₀(PO₄)₆OH₂, is the primary inorganic salt in bone, containing calcium and phosphorus. Others are organic molecules. Answer is C, per the document.