Cardio Vascular System

Over the last couple of weeks I have been learning about the cardio vascular system. We learned combining forms related to the heart, suffixes, prefixes, and a lot of vocabulary.

The heart is made up of four different chambers; right and left atrium, and right and left ventricles.
The Ventricles are the two lower chambers of the heart. The left ventricle pumps blood through the arteries from the heart back to body tissue. The right ventricle pumps blood to the lungs.

The atriums are the two upper chambers. The right atrium recieves blood returning from the body through the viens. The left atrium recieves blood from the lungs.

Now, there are also antrioventricular valves that lie between the atriums and ventricles. The mitral valve lies between ther left atrium and the left ventricle. The Tricuspid lies between the right atrium and the riught ventricle.

I also learned about different types of blood cells such as Leukocytes abd Erythrocytes.
Leukocytes are white blood cells that combat infection and respond to inflamation. There are also five different types of leukocytes:

• Neutrophil
• Eosinophil
• Basophil
• Lymphocyte
• Monocyte

The other type of blood cell is Erythrocytes. These are red blood cells that carry oxygen. These blood cells develop in bone marrow.

I learned alot of cardio vascular vocabulary aswell.

• Ischemia - Deficiency of blood flow
• Cardiomegaly - Enlargment of the heart
• Pericarditis - Inflamation of the sac surrounding the heart
• Angioma - tumor composed of blood vessels.
• Fibrillation - Rapid, quivering, noncoordinated contractions of tha atria or ventricles.
• Aneurysm - balooning of a weakend portion of an arterial wall.
• Cardiac Arrest - sudden cessation of cardiac output and effective circulation.