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Mrs. Wharton’s Science Class

Mrs. Wharton’s Science Class. Circulatory System. Cardiovascular System. Made up of the Heart, blood vessels and blood Carries needed materials to cells (oxygen) and carries waste products away from cells. Heart. Heart -Muscular organ that pumps blood throughout the body

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Mrs. Wharton’s Science Class

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  1. Mrs. Wharton’s Science Class Circulatory System

  2. Cardiovascular System • Made up of the Heart, blood vessels and blood • Carries needed materials to cells (oxygen) and carries waste products away from cells

  3. Heart • Heart-Muscular organ that pumps blood throughout the body • Each time the heart beats it pushes blood through the vessels of the cardiovascular system. • Valve- A flap of tissue that prevent blood from flowing backward inside the heart.

  4. Heart • Atrium- receives blood that comes into the heart. • Ventricle- Lower chamber. Pumps blood out of the heart into the body.

  5. Heart Parts • Arteries- Carry blood away from the heart (O2 rich) • Veins- Carries blood to the heart. • Capillaries- Any vessel where substances are exchanged between blood and body cells.

  6. Heart Health • Pacemaker- put inside the body. Controls the need for O2 • Blood Pressure- The force in which the valves shut. • Hypertension- Higher blood pressure than normal

  7. Lymphatic System • Network of vein like vessels that return fluid to the bloodstream. • Lymph nodes- Small nodes of tissue- traps bacteria. • Lymph nodes may enlarge when they are helping the body fight infection.

  8. Heart Health • Cardiovascular health can be maintained by strengthening the heart muscle through regular exercise. • Eating Right

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