1. Quiz Tomorrow Add to study guide: Nervous tissue is specialized to transmit and receive messages or impulses in the body. Blood, bone and cartilage are examples of Connective Tissue

3. Quiz Tomorrow Add to study guide: Skeletal, Cardiac, and Smooth are the three types of Muscle tissue. Fat is another name for Adipose tissue

4. Quiz Tomorrow Add to study guide: From the smallest functional units to the largest, the body is organized as: Cell, tissue, organ, organ system, body.

6. Functions of the circulatory system… DELIVER MATERIALS Red Blood Cells - Contain hemoglobin that enables RBC’s to carry Oxygen to the body and pick up Carbon Dioxide. They trade the Carbon Dioxide for Oxygen in the lungs What does oxygen do for us? Oxygen helps our body to make energy

7. Where does the Carbon Dioxide come from? We make Carbon Dioxide in our body when we make energy How does your body know when to breathe? When your body notices that there is too much carbon dioxide, it makes you breath to remove the poisonous CO2. Carbon dioxide blocks Oxygen from traveling on the RBC’s. If we can’t exhale we can’t make energy

8. White Blood Cells - Fight disease and foreign objects in the body Platelets - Assist in blood clotting Hemoglobin - iron- containing protein that gives blood its red color

10. Heart Ventricle - lower chamber of the heart Atrium - upper chamber of the heart Pacemaker - small bundle of cells in the right atrium that starts each heartbeat

11. Capillaries Smallest vessels that are very thin & allow oxygen and carbon dioxide to pass through the walls Blood Vessels Tubes that carry blood – capillaries, arteries and veins Veins Carry blood to the heart Valve Arteries Carry blood away from the heart Muscle

12. Cardiovascular disease causes a buildup of plaque in the arteries Coronary arteries are the arteries that give the cardiac muscle oxygen When plaque blocks a coronary artery the heart muscle is not able to make enough energy and you have a heart attack What causes plaque build-up? Plaque Blood Flow

13. In heart bypass surgery the blockage in the coronary artery is bypassed A vein is taken from the leg is connected to the aorta and then to a place beyond the blockage. http://www.pbs.org/wgbh/nova/eheart/transplantwave.html

14. Angioplasty – where a balloon is blown up in side an artery. The balloon pushes the plaque to the sides, so the passage is clear. Deflated balloon in artery Balloon pushes plaque against artery wall

15. Questions of the Day What is the function of the circulatory system? What is the difference between arteries and veins? What are capillaries? What is cardiovascular disease? Prevention? When do you take a breath?

16. Respiratory System – gas exchange Path of the Respiratory System: Air enters the mouth or nose Air continues down the pharynx past the larynx (voice box) and into the trachea (windpipe) The lower end of the trachea splits into 2 bronchi

17. The bronchi split off into several bronchioles At the end of each bronchiole there is an air sac The air sac is made up of several alveoli The alveoli have capillaries wrapped around them Capillaries Alveoli Trachea Bronchioles Blood cells with Oxygen Oxygen in CO2 out Blood cells with CO2

18. Why would the alveoli have capillaries around them? Gas can pass through the walls of the capillaries exchanging Carbon Dioxide for Oxygen At what point do the Respiratory and Circulatory Systems interact?

19. When you inhale muscles in between your ribs contract and the diaphragm (a muscle below your lungs) contracts When you exhale the muscles in between your ribs relax and the diaphragm relaxes

20. Asthma - respiratory disease in which certain airways in the lungs become constricted Bronchitis – mucous accumulates in the bronchioles and does not allow as much air to pass through Emphysema – the alveoli lose their elasticity Pneumonia – the alveoli fill with liquid (pus, mucous etc)