ATI RN
Skeletal System Questions Questions
Question 1 of 5
The ribs attach to the vertebrae.
Correct Answer: D
Rationale: The 12 pairs of ribs attach to the 12 thoracic vertebrae via costal facets, forming the thoracic cage. Cervical, lumbar, and sacral vertebrae lack rib articulations, making 'thoracic' correct.
Question 2 of 5
The most anterior portion of the coxal bone is the:
Correct Answer: D
Rationale: The pubis, the anterior lower part of the coxal bone, forms the pubic symphysis. The ilium is superior, ischium posterior, and acetabulum lateral, making 'Pubis' correct.
Question 3 of 5
In one foot, there are tarsals, metatarsals and phalanges.
Correct Answer: B
Rationale: One foot has 7 tarsals (ankle), 5 metatarsals (foot), and 14 phalanges (toes: 2 in big toe, 3 each in others). '7-5-14' is the correct count.
Question 4 of 5
The joint between the carpal and first metacarpal of the thumb is a joint.
Correct Answer: C
Rationale: The thumb’s carpometacarpal joint is a saddle joint, allowing opposition (e.g., grasping). Hinge is one-plane, condyloid is two-plane, and gliding is sliding, making 'saddle' correct.
Question 5 of 5
Doing arm circles is an example of
Correct Answer: B
Rationale: Arm circles involve circumduction, a circular motion combining flexion, extension, abduction, and adduction (e.g., shoulder). Rotation is single-axis, flexion bends, and pronation rotates the palm, making 'circumduction' correct.