ATI RN
Cardiovascular System Anatomy Questions and Answers Questions
Question 1 of 5
Which of the following is not a plasma protein?
Correct Answer: D
Rationale: Albumin, globulins, and fibrinogen are plasma proteins synthesized by the liver. Platelets are cellular fragments, not proteins, involved in clotting.
Question 2 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 3 of 5
In the heart, valves that ensure one-way flow of blood are found:
Correct Answer: D
Rationale: Valves ensure one-way flow at two key locations: atrioventricular (AV) valves (A) between atria and ventricles (tricuspid, mitral), and semilunar valves (B) between ventricles and arteries (pulmonary, aortic). No valves exist between vena cavae and atria (C), so D (A and B) is correct.
Question 4 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 5 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.