Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Question
This is a blood flow diagram.
Transcribed Image Text:**Transcription for Educational Website:**
## Cardiac Circulation Diagram
This diagram is a schematic representation of the cardiac circulation process, illustrating how blood flows through the heart and body. Follow the steps below by labeling numbers 1 through 10:
- **Circle with line**: Represents a valve in the heart.
- **Arrow**: Indicates a blood vessel through which blood flows.
- Numbers **3** and **9** are pointing to arrows, identifying key points in the blood vessel pathways.
### Labeling Key Points:
1. **Right atrium**: The entry point where deoxygenated blood from the body enters.
2. The blood flows through a valve to reach the right ventricle.
3. Through the **SL valve** (semilunar valve), blood is directed into the pulmonary artery.
4. It travels to the lungs to pick up oxygen.
5. Oxygenated blood returns to the heart via the pulmonary veins.
6. The left atrium receives oxygenated blood.
7. Blood moves through another valve into the left ventricle.
8. The left ventricle pumps the oxygen-rich blood into the aorta.
9. Through another point in the blood vessel, the blood circulates through the body.
10. Finally, deoxygenated blood returns to the right atrium, completing the circulation loop.
This flow represents the continuous circuit essential for effective oxygen transport and waste removal in our body. Understanding this process is crucial for comprehending cardiovascular health and physiology.
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The heart is the muscular organ that continuously pumps blood by rhythmic contraction and relaxation.
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