Chapter 27 Circulation Types of Circulatory Systems

Chapter 27: Circulation

Types of Circulatory Systems: 1) Open Circulatory System: 2) Closed Circulatory System:

Heart: Pump propelling blood through vessels

Circuits of the Circulatory System:

Heart Anatomy: Right atrium Right ventricle Atria: Collect blood from body Left atrium Left ventricle Ventricles: Circulate blood through body

Heart Anatomy: Pulmonary Arteries Pulmonary Veins (4) Vena Cavas Aorta

Heart Anatomy: Tricuspid Valve Pulmonary Semilunar Valve Atrioventricular Valves: Bicuspid (Mitral) Valve Aortic Semilunar Valves:

Heart Anatomy:

Pathway of Blood

Cardiac Cycle:

Coordination of Heart Contraction: 2) Atria contract 4) Ventricles contract

Nervous System / Hormones Influence Heart Rate:

Blood (“River of Life”): Components: 1) Formed Elements (living cells) Volume = 5 - 6 L

Blood (“River of Life”): Components: 2) Plasma (Non-cellular - Fluid)

Erythrocyte = Red blood cell

Leukocyte = White blood cell

Platelets:

Blood Vessels: Arteries Arterioles Arteries Capillaries Heart Veins Venules

Blood Vessels: Arteries Arterioles Capillaries Heart Veins Venules

Blood Vessels: Arteries Arterioles Capillaries Heart Veins Venules

Blood Vessels: Arteries Arterioles Veins Capillaries Heart Veins Venules

Blood Vessels: Arteries Arterioles Veins Capillaries Heart Veins Venules

Skeletal Muscle Pump: Vein Valve:

Cardiovascular Disorders:

Lymph System:

Elephantiasis