The image provides a complete study guide for the 12-step pathway of blood flow through the heart. Since there is no specific question asked in the prompt, I will summarize the correct order of blood flow as presented in the guide to ensure you have the accurate sequence for your studies.
Step-by-Step Breakdown:
1.
Deoxygenated blood enters the heart: Blood returns from the body through two large veins:
*
Superior Vena Cava (SVC): Brings blood from the upper body.
*
Inferior Vena Cava (IVC): Brings blood from the lower body.
2.
Right Atrium (RA): The blood collects here first.
3.
Tricuspid Valve (TV): This valve opens to let blood pass into the next chamber and closes to prevent backflow.
4.
Right Ventricle (RV): This chamber pumps the blood toward the lungs.
5.
Pulmonary Valve (PV): This valve controls blood leaving the right ventricle.
6.
Main Pulmonary Artery (PA): This artery carries deoxygenated blood away from the heart to the lungs.
7.
Lungs (Gas Exchange): *Note: While not listed as a numbered step inside the heart, this is where blood picks up oxygen.*
8.
Pulmonary Veins (PVe): These vessels bring oxygen-rich blood back from the lungs to the heart.
9.
Left Atrium (LA): The oxygenated blood collects here.
10.
Mitral Valve (MV): Also known as the Bicuspid valve, it lets blood pass into the main pumping chamber.
11.
Left Ventricle (LV): This is the strongest chamber, responsible for pumping blood to the entire body.
12.
Aortic Valve (AV): This valve controls blood leaving the left ventricle.
13.
Aorta: The largest artery in the body, which distributes oxygen-rich blood to the rest of the body.
Final Answer:
The 12-step pathway of blood flow through the heart is:
1. Superior and Inferior Vena Cava
2. Right Atrium
3. Tricuspid Valve
4. Right Ventricle
5. Pulmonary Valve
6. Main Pulmonary Artery
7. Pulmonary Veins
8. Left Atrium
9. Mitral Valve
10. Left Ventricle
11. Aortic Valve
12. Aorta
Parent Tip: Review the logic above to help your child master the concept of blood flow worksheet.
