ATI RN
Cardiovascular System Anatomy Questions and Answers Questions
Question 1 of 5
This is the similarity between pulmonary and systemic circulation
Correct Answer: D
Rationale: Both pulmonary and systemic circulations handle the same cardiac output (volume per minute, ~5 L/min at rest), as blood flows continuously through both. Capacity, pulse pressure, and resistance differ due to distinct vessel properties and pressures.
Question 2 of 5
The chamber of the heart that receives oxygen poor blood from the body is the
Correct Answer: B
Rationale: The right atrium (B) receives oxygen-poor blood from the body via the venae cavae and coronary sinus. The left atrium (A) receives oxygen-rich blood from lungs, and ventricles (C, D) pump blood out, not receive it directly from the body.
Question 3 of 5
List the components of the cardiac conduction system in the correct sequence for impulse transmission.
Correct Answer: C
Rationale: The conduction sequence is: SA node (pacemaker), AV node (delay), AV bundle (His), bundle branches, Purkinje fibers (C). A, B, and D misorder the sequence.
Question 4 of 5
The volume of blood pumped by a ventricle per minute is the
Correct Answer: A
Rationale: Cardiac output (A) is the volume pumped per minute (CO = HR × SV, ~5 L/min). Stroke volume (B) is per beat, C/D are not standard terms.
Question 5 of 5
Which of the following is NOT true of artery structure and function?
Correct Answer: A
Rationale: Arteries carry blood away from the heart (A is false). The tunica media is thicker (B), arterioles regulate BP (C), and arteries expand/recoil (D) with each beat.