ATI RN
Cardiovascular System Anatomy Questions and Answers Questions
Question 1 of 5
The valve that is located on the same side of the heart as the pulmonary semilunar valve is the:
Correct Answer: A
Rationale: The pulmonary semilunar valve is on the right side of the heart, controlling blood flow from the right ventricle to the pulmonary artery. The tricuspid valve, also on the right side, regulates flow between the right atrium and right ventricle. The mitral (bicuspid) and aortic valves are on the left side.
Question 2 of 5
The tunica adventitia is relatively thin and consists chiefly of:
Correct Answer: C
Rationale: The tunica adventitia, the outermost layer of blood vessels, is primarily connective tissue (including collagen and some elastic fibers) anchoring the vessel to surrounding structures. Epithelium is not present here.
Question 3 of 5
A client reports during a health history that a diagnosis of mitral valve prolapse has been made. The nurse knows that this valve prevents backflow of blood from the:
Correct Answer: C
Rationale: The mitral valve lies between the left atrium and ventricle and thus prevents ventricular backflow to the atrium. The tricuspid valve is between the right atrium and ventricle. The pulmonic valve is between the right ventricle and pulmonary artery. The aortic valve is between the left ventricle and the aorta. (Source: Document, Pretest Answer 4, p. 76)
Question 4 of 5
No granules are present in a:
Correct Answer: B
Rationale: Lymphocytes lack visible granules in their cytoplasm under a microscope, unlike neutrophils, eosinophils, and basophils, which are granulocytes with specific staining granules (neutrophils: neutral, eosinophils: red, basophils: blue).
Question 5 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.