ATI RN
Skeletal System Questions Questions
Question 1 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 2 of 5
Mammalian pinna is supported by
Correct Answer: A
Rationale: The pinna (external ear) in mammals is supported by elastic cartilage, which provides flexibility and resilience to maintain its shape. Hyaline cartilage is rigid (e.g., nose), white fibrous tissue is dense (e.g., tendons), and calcified cartilage is hardened—elastic cartilage is uniquely suited for the pinna.
Question 3 of 5
Which bone is the longest and strongest bone in the human body?
Correct Answer: B
Rationale: The femur (thigh bone) is the longest and strongest bone in the human body, supporting significant weight and muscle forces during movement. The cranium is a collection of bones, not a single bone, while the tibia and radius are shorter and less robust.
Question 4 of 5
Which of the following bones listed is an example of a short bone?
Correct Answer: C
Rationale: Carpals (wrist bones) are short bones, cuboidal in shape, providing stability and limited movement. The femur and radius are long bones, and the cranium comprises flat and irregular bones, not short ones.
Question 5 of 5
The skull houses the brain, which sits in the cranial ... .
Correct Answer: A
Rationale: The brain resides in the cranial cavity, a well-defined space within the skull formed by the cranial bones. 'Hole' and 'pit' are vague and not standard terms for this structure.