ATI LPN
Cardiovascular Questions and Answers PDF Questions
Question 1 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 2 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 3 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.
Question 4 of 5
During heart transplants, the nerves are severed resulting in a faster resting heart rate (approximately 100 beats per minute) after the transplant.
Correct Answer: C
Rationale: The vagus nerve slows heart rate via parasympathetic input; severing it during transplant removes this inhibition, increasing resting heart rate.
Question 5 of 5
Both the internal and external carotid arteries bring blood to the brain.
Correct Answer: B
Rationale: The internal carotid supplies the brain, while the external carotid supplies the face and neck.