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Pulmonary circulation facilitates the process of external respiration: Deoxygenated blood flows into the lungs. It absorbs oxygen from tiny air sacs (the alveoli) and releases carbon dioxide to be exhaled. Systemic circulation facilitates internal respiration: Oxygenated blood flows into capillaries through the rest of the body.
- The Heart
One chamber on the left receives oxygen-rich blood from the...
- Blood Vessels
If you were to lay out all the blood vessels of the body in...
- Glossary
When oxygenated blood reaches the narrow capillaries, the...
- Free AR Lab Activities
AR lab manual and homework assignments using VB Suite on an...
- Web Suite
Download the Visible Body Suite mobile app to your phone or...
- Brain
The hypothalamus helps to process sensory impulses of smell,...
- Female Reproductive System
This lining, like the inner layer of the uterine tubes, is...
- Respiratory
Through breathing, inhalation and exhalation, the...
- The Heart
3 dni temu · 1. Blood Enters the Right Atrium. The journey of blood flow through the heart begins as deoxygenated blood, rich in carbon dioxide, enters the right atrium. This blood arrives from the upper part of the body via the superior vena cava and from the lower part of the body via the inferior vena cava. 2.
Tracing blood flow through arteries follows the current in the direction of blood flow, so that we move from the heart through the large arteries and into the smaller arteries to the capillaries. From the capillaries, we move into the smallest veins and follow the direction of blood flow into larger veins and back to the heart.
Blood flows through your heart, lungs and body in a series of steps. After delivering oxygen and nutrients to all your organs and tissues, your blood enters your heart and flows to your lungs to gain oxygen and get rid of waste.
21 lis 2023 · Pulmonary and systemic circulation. Blood circulation starts when the heart relaxes between two heartbeats: The blood flows from both atria (the upper two chambers of the heart) into the ventricles (the lower two chambers), which then expand.
25 lip 2023 · Blood flow through the body delivers oxygen, nutrients, hormones, cells, products of defense mechanisms for wound healing, and platelets. The heart pumps these products to the organs, while the vessels transport them to and from the organs.
24 mar 2022 · Español. Arteries and veins link your heart to the rest of the circulatory system. Veins bring blood to your heart. Arteries take blood away from your heart. Your heart valves help control the direction the blood flows. Heart valves control the flow of blood so that it moves in the right direction. The valves prevent blood from flowing backward.
