Westwood Horizons Internet Cafe
Presents
A Remarkable Organ Called
The Heart
Background
Nervous
System
Respiratory System
Endocrine System
Lymphatic System
Digestive System
Immune System
Muscular System
Urinary System
Reproductive System
Skeletal System
Sensory Organs
Cardiovascular System
The Heart
Heart Muscles
Sinoatrial Node (SA) (Natural Pacemaker)
Atrioventricular Node (AV)
His-Purkinje Network
Heart Chambers
Left Atrium
Left Ventricle
Right Atrium
Right Ventricle
Heart Valves
Mitral Valve
Tricuspid Valve
Aortic Valve
Pulmonic or Pulmonary Valve
Blood Vessels
Arteries (Aorta, Coronary Arteries)
Veins
Capillaries
Blood Vessels of one person are over 60,000 miles long-long
enough to go around the world more than two times. The heart irrigates it
all.