Asked by thania tanijaya on Jun 16, 2024
Verified
A red blood cell that is flowing through the aorta would pass through ________ heart valves before reaching the right ventricle.
A) one
B) two
C) three
D) four
Heart Valves
Structures within the heart that open and close to control the flow of blood through the heart's chambers and into the arteries.
Aorta
Originating from the heart's left ventricle and stretching to the abdomen, it is the body's biggest artery, responsible for delivering oxygen-rich blood to the circulatory system.
Right Ventricle
A chamber of the heart that pumps deoxygenated blood to the lungs for oxygenation via the pulmonary artery.
- Acquire knowledge of the essential structure and role of the heart.
Verified Answer
SL
Sahil LohchabJun 17, 2024
Final Answer :
C
Explanation :
A red blood cell in the aorta would first pass through the aortic valve to leave the heart, then enter systemic circulation. To return to the right ventricle, it would pass through two more valves: the tricuspid valve, after returning via the venae cavae, and the pulmonary valve, after leaving the right ventricle and returning from the lungs via the pulmonary veins. This totals three valves: aortic, tricuspid, and pulmonary.
Learning Objectives
- Acquire knowledge of the essential structure and role of the heart.