ATI RN
Anatomy And Physiology Nutrition And Metabolism Question Quizlet Questions
Question 1 of 5
The smallest living unit within the human body is
Correct Answer: B
Rationale: The cell is the basic structural and functional unit of life in all living organisms, including humans.
Question 2 of 5
The proximal and distal ends of a long bone are called the
Correct Answer: A
Rationale: The epiphyses are the ends of a long bone, while the diaphysis is the shaft, and other terms refer to different regions.
Question 3 of 5
The central canal of an osteon contains
Correct Answer: D
Rationale: The central (Haversian) canal of an osteon contains blood vessels and nerves.
Question 4 of 5
A fascicle is a
Correct Answer: A
Rationale: A fascicle is a bundle of muscle fibers wrapped by perimysium.
Question 5 of 5
The efferent division of the peripheral nervous system innervates ___ cells.
Correct Answer: D
Rationale: The efferent division innervates all listed cell types (skeletal, smooth, heart muscle, and glandular cells) via somatic and autonomic pathways.