Circulatory Notes

01 Circulatory System

Circulatory system - takes ________oxygen____________ and nutrients to all cells and removes carbon dioxide and waste products.  

Open circulatory system - blood baths the _______organs____________ directly; no blood vessels; Ex: insects  

Closed circulatory system - blood is confined to blood vessels; Ex: ____humans_______.

Arteries - carry blood _______away_____ from heart.

Arterioles - small ______arteries_________.

Capillaries - where oxygen and _______carbon dioxide____ exchange takes place.  

Venules - small _______veins________.

Veins - carry blood ______to________ the heart.  

Valves - keep blood in _______veins_________ flowing towards the heart.

Varicose veins - caused by the __________failure_________ of vein valves.    

Blood - made up of ____red__________ blood cells, white blood cells, platelets, plasma, and things that are dissolved in plasma.

Plasma - _______fluid________ in the bloodstream.

Superior vena cava - 2nd largest _____vein________ that brings in deoxygenated blood from upper body.  

Inferior vena cava - largest vein that brings in deoxygenated blood from ______lower_________ body.  

Right atrium - receives deoxygenated blood; _______upper____ chamber on right side.

Tricuspid valve - connects _______right________ atrium & right ventricle.  

Right ventricle - deoxygenated blood; _______lower___________ chamber on right side.

Pulmonary semilunar valve - connects ______right____ ventricle & pulmonary arteries.

Pulmonary artery - deoxygenated blood; takes blood to ______lungs_________.    

Lungs - respiratory organ to take in ______oxygen_______ and give off carbon dioxide.

Pulmonary vein - oxygenated blood; takes blood back to ______left_______ atrium.

Left atrium - oxygenated blood; _______upper_______ chamber on left side.

Bicuspid (mitral) valve - connects left atrium & _______left________ ventricle.  

Left ventricle - ____oxygenated______________ blood; lower chamber on left side.  

Aortic semilunar valve - connects left ________ventricle_______ & aorta.

Aorta -largest artery in the body; carries oxygenated blood to the heart(through the body).  

Coronary arteries - arteries that supply the _______heart________ muscle with oxygen.  

Heart attack - _________complete_____________ obstruction of a coronary artery and some of the heart muscle dies from lack of oxygen.

Angina pectoris - chest pain from a partial obstruction of a _______coronary_________ artery and some of the heart isn't getting enough oxygen.

Angioplasty - stick a balloon catheter in, expand the balloon, ______expand________ the artery, and compress the plaque.    

For some interesting pictures go to http://www.heartpoint.com/gallery.html  Be sure to check out the angioplasty animation.