2. Wednesday 5/13/15 Pick up a red & blue pencil. Get out your Human Body Book & clear your desk.

4.  To carry nutrients and oxygen to and remove waste from the cells of the body. The Function

5. What makes up the circulatory system? 1. Heart 2. Blood 3. Blood vessels

6. There are 3 types of blood vessels: 1. ARTERY 2. VEIN 3. CAPILLARY

7. The Heart ARTERIES carry blood away from the heart ARTERIES - carry blood away from the heart VEINS– bring blood toward the heart VEINS – bring blood toward the heart

8. The Heart Aorta

9. Basic Heart RALA RVLV 4 chambers: atria (A) - 2 atria (A) ventricles (V) - 2 ventricles (V)

10. Aorta Superior Vena Cava Inferior Vena Cava Descending Aorta R Atrium R Pulmonary Veins R Pulmonary Artery R Ventricle L Pulmonary Artery L Pulmonary Veins L Ventricle LUNGS L Atrium RA RV LV LA X X X

12. Function of the Immune System To defend the body from foreign pathogens Defenders are: WBC’s (White Blood Cells) & Lymph Nodes

14. Function of Respiratory System Respiration means breathing  bringing in O 2 and releasing CO 2

15. Steps in Breathing 1 st Step  Take in air through the nose or mouth.

16. Steps in Breathing 2 nd Step  Air flows into pharynx, passes epiglottis, and moves through larynx. When you swallow food, the epiglottis covers the entrance to the trachea, which prevents food from getting into the air pathways.

17. Steps in Breathing 3 rd Step  Air travels into the windpipe, or trachea.

18. Steps in Breathing 4 th Step  Trachea splits into two pipes called the bronchi, which lead into the lungs.

19. Steps in Breathing 5 th Step  Air sacs in the lungs called alveoli, where gas exchange occurs.

20. Diaphragm Larynx (voice box) Trachea Pharynx Lung Bronchii Take in Air Bronchioles

21. How do you breathe? INHALEEXHALE