engagement in class

in my opinion my engagement in this class is pretty good because i try to ask as many questions in this class as i possibly can. also i will do anything in my power to do anything to show that i can do a better handstand then mrs. philips. ;)

Circulatory system review

PULMONARY SYSTEM:

The blood leaves the heart from the right ventricle, the blood is deoxygenated. The deoxygenated blood travels through the pulmonary artery to the lungs. Then the blood becomes oxygenated and returns to the heart from the pulmonary vein.

SYSTEMIC SYSTEM:

oxygenated blood leaves the heart from the left ventricle through the aorta to the rest of the body where systemic circulation happens, and deoxygenated blood is brought back up to the heart from veins

Arteries

-Takes blood from heart to the whole body.

-Has smaller lumen

-Has oxygenated blood

-Doesn't have valves

Veins
-Takes deoxygenated blood from body to the heart.
-Have larger lumen. Able to stretch more.
-Deoxygentated blood
-Has valves

Heart 1

I wanna know how a heart transplant happens? And if the person temporarly dies?

http://m.youtube.com/watch?v=bdIZkasIDas

The surgeon will begin by exposing the chest cavity through a cut in the ribcage. The surgeon will then open the pericardium (a membrane that covers the entire heart) in order to remove your diseased heart. The back part of your own left atrium will be left in place, but the rest of the heart will be removed.

Your new heart will be carefully trimmed and sewn to fit the remaining parts of your old heart. This transplant method is called an "Orthotopic procedure". This is the most common method used to transplant hearts.

http://www.cts.usc.edu/ht-pg-hearttransplantprocedure.html

A person doesnt die when the heart transplant surgery is happening because they put a machine that pumps blood through your body so you do not die.

http://m.youtube.com/#/watch?v=SMGQODiX3dE&feature=youtube_gdata_player&desktop_uri=%2Fwatch%3Fv%3DSMGQODiX3dE%26feature%3Dyoutube_gdata_player