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Contributor: Hannah Brooks. Lesson ID: 12574
Blood doesn't just travel around veins for fun like a physiological water park. It makes pickups and deliveries on its travels. Pick up (and display) the pulse of this system's activities!
Journey into the mysterious world of the circulatory system, where we'll unravel the mystery behind what all that blood is doing as it travels ceaselessly through your amazing bodies.
Get ready to explore the astonishing wonders of your inner workings and discover the true essence of life itself — the circulatory system!
The circulatory system moves blood, using the heart as a pump and the vessel system throughout the body to distribute nutrients and oxygen.
You would not be able to survive without the circulatory system because it interacts with so many other body systems in important ways!
The circulatory system works closely with the lungs to provide oxygen to the blood.
Lungs are a part of the respiratory system and use the air you breathe to dissolve oxygen for use in the body. Oxygen is added to the blood in the lungs, pumped to the heart, and distributed to the entire body through the network of blood vessels.
As blood transports oxygen, it helps remove carbon dioxide and waste from cells.
The excretory system can release these waste products. Kidneys regulate salts and waste products in the body and excrete them through the bladder.
The endocrine system, responsible for managing hormones, uses the circulatory system to provide hormones and other chemical signals to cells throughout the body.
These chemicals help regulate processes in every system, like the body's hair development during puberty and adrenaline regulation during stressful situations.
The circulatory system is controlled by the nervous system and the brain, which sends electrical impulses to drive the cardiac cycle of contractions.
Heartbeats are caused by a unique system of electrical impulses creating a rhythm. These impulses travel along nerves that conduct signals from the brain to the heart.
Humans cannot survive without the heart and the circulatory system, but this important body system relies heavily on other systems to function.
The respiratory system provides oxygen to the blood, while the endocrine system uses blood to distribute hormones to cells. Blood helps the excretory system by removing waste and carbon dioxide that the bladder can filter and remove.
These body systems are interdependent, meaning they need one another to function and sustain life!
In the Got It? section, complete a hands-on activity to test the relationship between body systems in your own body!
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