ATI RN
Cardiovascular System Anatomy Questions and Answers Questions
Question 1 of 5
Contraction of the atria of the heart leads to blood moving directly
Correct Answer: D
Rationale: Atrial contraction pushes blood through atrioventricular valves (D, tricuspid and mitral) into ventricles. Auricles (A) are atrial extensions, arteries (B) and veins (C) are not directly involved.
Question 2 of 5
Heart chamber that pushes blood through the right atrioventricular valve when it contracts
Correct Answer: A
Rationale: The right atrium (A) contracts to push blood through the right AV valve (tricuspid) into the right ventricle during atrial systole. Ventricles (B, D) pump out, left atrium (C) serves the mitral valve.
Question 3 of 5
Another name for the right AV valve
Correct Answer: B
Rationale: The right AV valve is the tricuspid valve (B). Mitral (A) is left AV, aortic (C) and pulmonary (D) are semilunar.
Question 4 of 5
Which of the following is NOT a major function of the blood?
Correct Answer: D
Rationale: Blood transports oxygen (A), regulates pH (B), and protects against disease (C), but does not produce oxygen (D); that occurs in the lungs.
Question 5 of 5
Which of the following blood cells release granules that intensify the inflammatory response and promote hypersensitivity (allergic) reactions?
Correct Answer: D
Rationale: Basophils (D) release histamine and heparin, enhancing inflammation and allergies. Eosinophils (A) target parasites, monocytes (B) phagocytize, lymphocytes (C) are immune.