1. Circulatory System

2.  Function  Transports  Water  Oxygen  Wastes  Regulates temperature  Removes disease

3. Circulatory System  Heart  Center of the circulatory system  Large muscle  Pumps continuously

4. Circulatory System  Blood Vessels  Arteries  Vessels that take blood away from the heart  Veins  Vessels that return blood to the heart

5. Circulatory System  Capillaries  Connect arteries and veins  Deliver nutrients to the cells  Take away waste

6. Circulatory System  Red Blood cells  Give blood color  Carry oxygen  White Blood cells  Destroy disease  Pus

7. Circulatory System  Four Chambers  Right Atrium  Receives blood into heart from body, from veins  Right Ventricle  Pumps blood out to the lungs  Left Atrium  Receives blood into heart from lungs  Left Ventricle  Pumps blood out into body via arteries

8. Lungs

10. Disorders of the heart  Foramen Ovale (infants)  Opening in the heart where the blood enters the left atrium from the right atrium.  Congestive Heart Failure  Heart becomes enlarged and cannot pump properly  Heartworms  Parasitic worm living in the heart and arteries

11. http://www.youtube.com/watch?v=JxffglvuWGI

12. Pulmonary System

13. Respiratory  Respiration is the exchange of gases (oxygen and carbon dioxide) between the atmosphere and the body cells  Ventilation means the bringing in of fresh air  Ventilation is also known as breathing

14. Respiratory System  Function:  Takes oxygen from the air  Places it in the bloodstream  Removes carbon dioxide

15. The Respiratory System  The respiratory system is divided into upper and lower tracts  The upper respiratory tract consists of the nose, mouth, pharynx, epiglottis, and larynx  The lower respiratory tract consists of the trachea, bronchial tree, and lungs

16. Respiratory System  Structures  Nostrils  Large amounts of air  Nasal Chamber  Mouth  Brings in air

17. Respiratory System  Structures  Pharynx  Passageway for  Food  Water  Air  Controlled by epiglottis

18. Respiratory System  Larynx  Voice box (Adam’s apple)  Prevents material from entering lungs.

19.  Trachea  Large tube  Made of rigid cartilaginous rings

20. Respiratory System  Bronchi  Branch out further  Lungs  Gas exchange

21. Lungs Gas exchange  3 lobes  Superior  Middle (smallest)  Only on right lung  Inferior

22. Lungs Cow Horse smoker Non-smoker

23. Respiratory System  Alveoli  Surrounded by blood vessels  Carbon dioxide is removed from blood  Oxygen is absorbed into blood

24. Respiratory System  Diaphragm  Large muscle under the lungs  When contracted, rib cage expands and air comes in  When the diaphragm relaxes, air is forced out

25. Re-cap  http://www.youtube.com/watch?v=SPGRkex I_cs http://www.youtube.com/watch?v=SPGRkex I_cs