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  2. The Human Circulatory System | Parts, Functions & Problems

    study.com/academy/lesson/the-human-circulatory-system-parts-and-functions.html

    The functions of the circulatory system are essential for all other organ systems (e.g., the digestive system, endocrine system, reproductive system, etc.) to effectively perform their functions.

  3. The Function of the Circulatory System Lesson for Kids

    study.com/academy/lesson/the-function-of-the-circulatory-system-lesson-for...

    The function of the circulatory system is to move blood around the body. Discover the parts of the circulatory system, such as the heart and types of blood vessels, and how they work together.

  4. Circulatory System, Hearts & Brains - Lesson - Study.com

    study.com/academy/lesson/the-octopus-circulatory-system.html

    The Octopus Circulatory System. Octopus has a closed circulatory system. In a , the blood moves from various vessels and finally returns to the heart. In an open circulatory system, the body ...

  5. Bird Circulatory System | Heart, Structure & Functions

    study.com/academy/lesson/bird-circulatory-system-function-structure.html

    The circulatory system is defined as a body system that has the primary function of transporting oxygenated blood throughout the body, and the key organ that does this is the heart. Much like the ...

  6. Annelid Circulatory System | Definition, Structure & Function

    study.com/learn/lesson/annelid-circulatory-system-facts-structure.html

    The members of the phylum Annelida, commonly referred to as , have fully functioning, complex body systems. The Annelida circulatory system is a that is similar to a human's circulatory system in ...

  7. Earthworm Circulatory System | Overview, Anatomy & Diagram

    study.com/.../lesson/do-earthworms-have-a-closed-or-open-circulatory-system.html

    Its circulatory system consists of (1) two major vessels (dorsal and ventral blood vessels), (2) smaller lateral vessels that supply blood to all tissues and organs and connect the ventral blood ...

  8. Reptile Circulatory System | Overview, Anatomy & Diagrams

    study.com/academy/lesson/reptile-circulatory-system.html

    The reptilian circulatory system is a closed circulatory system, meaning that blood is always contained within vessels. In contrast, animals that have open circulatory systems, like many mollusks ...

  9. Components of the Circulatory System | Main Parts & Structure

    study.com/learn/lesson/circulatory-system-components-parts.html

    The components of the circulatory or cardiovascular system are the heart, blood vessels, and blood. The blood is made up of a fluid portion known as the and a solid portion comprised of cells. The ...

  10. Cardiovascular System | Function & Organs - Lesson - Study.com

    study.com/academy/lesson/what-is-the-cardiovascular-system-function-organs.html

    The cardiovascular system definition is an organ system that transports blood around the body. The cardiovascular system is always working, even when a person is resting or asleep. It increases ...

  11. The Human Vascular System | Main Parts & Function

    study.com/learn/lesson/vascular-system-blood-vessels-movement.html

    The definition of the human vascular system, also known as the circulatory system, is a collection of organs, nodes, and vessels that function to move blood and lymph throughout the body. The ...