1. OBJ: Given notes, activity sheet SWBAT state the functions of the hart and cardiovascular (circulatory system) with 70% accuracy. BRING IN TEXTBOOK DN: Distribute CRE Review Sheets and Body’s Transport System (Classwork) ACT: Introduction to Circulatory System (Notes; HEART) Complete Classwork Activity (Matching Column A to B) & State Exam Questions; Review Results HW: Text, read p.78-84; Complete Body Transport System Booklet (HW Check tomorrow); CRE EXAM, March 9; INERH Exam, March 20.

2. Circulatory (Cardiovascular) System: a tube (transport) system which carries nutrients to body cells and carries away waste. Blood moves through these tubes carrying nutrients and waste as well as contains cells that fight disease.

3. Circulatory System Notes Heart: consists of four (4) chambers that pumps blood through out body –Atria: upper chambers that receives blood –Ventricles: lower chambers that pumps blood away from heart. ** RIGHT VENTRICLE: pumps blood to LUNGS ** LEFT VENTRICLE: pumps blood to BODY (AORTA) RVL LVB RIGHTLEFT BACKWARDS LUNGS BODY CELLS AORTA (Away)

4. Circulatory System Notes Pattern of Blood Flow: First Loop (right ventricle) HeartLungs Second Loop (Left Ventricle; Aorta) HeartBody

5. Circulatory System Notes Valve (veins): prevents backflow (due to lower blood pressure) Pacemaker: sends out electrical signal to heart; heart muscle contracts regularly. Blood Vessels Types: Arteries: carries blood AWAY from heart Veins: carries blood to heart; has VALVES Capillaries: tiny thread-like vessels for nutrient & waste exchange between blood and body cells.

6. Higher Pressure Lower Pressure Capillary (nutrient & waste) Exchange with Tissue (Body) Cells