ATI LPN
Cardiovascular Questions and Answers PDF Questions
Question 1 of 5
Which of the following is NOT true of the heart's functions?
Correct Answer: C
Rationale: The heart does not mix oxygen-poor and oxygen-rich blood; this is prevented by its structure, including the septum.
Question 2 of 5
Identify the structures blood will flow through as blood flows from the left ventricle.
Correct Answer: B
Rationale: Blood flows sequentially from the left ventricle into arteries, then arterioles, capillaries, venules, and finally veins.
Question 3 of 5
The vasomotor center that controls the diameter of blood vessels is located in the
Correct Answer: A
Rationale: The vasomotor center, which regulates blood vessel diameter and vascular tone, is located in the medulla oblongata.
Question 4 of 5
The opening between the two atria in the fetus is the
Correct Answer: C
Rationale: The foramen ovale allows blood to pass from the right atrium to the left atrium in the fetus.
Question 5 of 5
Cardiac muscle fibres are electrically connected to neighbouring fibres by
Correct Answer: C
Rationale: Gap junctions allow for the rapid transmission of electrical impulses between cardiac muscle cells, facilitating synchronized contractions of the heart.