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The Cardiovascular System

The Cardiovascular System. Function 1:. Delivering materials Nutrients to body cells. Function 2:. Removing Waste: Blood picks up CO2 and delivers it to the lungs. Function 3:. Fighting Disease: Blood cells attack micro-organisms. Structures within the cardiovascular system:. Arteries:

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The Cardiovascular System

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  1. The Cardiovascular System

  2. Function 1: Delivering materials • Nutrients to body cells

  3. Function 2: Removing Waste: Blood picks up CO2 and delivers it to the lungs

  4. Function 3: Fighting Disease: Blood cells attack micro-organisms

  5. Structures within the cardiovascular system: • Arteries: • Carry blood AWAY from the heart • AWAY

  6. Structures within the cardiovascular system: Veins: Bring blood to the heart BACK

  7. Structures within the cardiovascular system: Capillaries: Exchange of gasses takes place here

  8. Structures within the cardiovascular system: Heart: Muscular organ that pumps oxygen to every living cell in the human body

  9. Chambers of the Heart: Atria: Always receive blood Ventricles: Always pump blood

  10. Halves of the Heart…… HUH?? Left half: always responsible for blood Right half: always responsible for blood OXYGENATED DEOXYGENATED

  11. The Heart Superior Vena Cava Aorta Arteries to the lungs Veins from the lungs Veins from the lungs Left Atrium Right Atrium Left Ventricle Right Ventricle Inferior Vena Cava

  12. The Heart: For real

  13. CIRCULATION

  14. Heartbeat Phases:

  15. Get your textbooks out!!

  16. The Respiratory System

  17. The Functions of the Respiratory System

  18. The Pathway of Air • The Nose and Nasal Cavities: • Air enters the body through 2 nostrils and then moves into the nasal cavities

  19. The Pathway of Air • 2. The Pharynx • Next, air enters • the pharynx • (throat) The Pharynx

  20. The Pathway of Air • The Larynx • The larynx contains • the vocal cords. The Epiglottis The Larynx

  21. The Pathway of Air • 4. The Epiglottis • The epiglottis is a small flap of tissue that closes the trachea when you swallow food or drink. It opens again when you breathe. The Epiglottis The Larynx

  22. The Pathway of Air • 5. The Trachea • The windpipe; tube that leads from the larynx to the lungs

  23. The Pathway of Air 6. Bronchus The trachea divides into 2 bronchi. These bronchi enter the lungs Bronchi

  24. The Pathway of Air 7. Lung Bronchi divide into smaller tubes. At the end of these tubes are the ALVEOLI.

  25. The Alveoli The exchange of oxygen and carbon dioxide occurs here

  26. Internal vs. External Respiration Internal Respiration – Exchange of gasses occurs at the body’s cells External Respiration – Exchange of gasses occurs within the lungs

  27. What muscle controls breathing? The Diaphragm!!!

  28. Keeping your respiratory system healthy!!!!

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