circulatory

this is a kind of basic cartoony picture of the circulatory system.






here is another pic of arteries






lots to memorize once again. but i'm learning much about the human body. its interested to see how blood brings oxygen throughout our bodies.

it starts with the conduction system in the heart.






from the sa node the electrical impulse travels to the av node through the internodal pathway.
then to the bundle of his, followed by the right and left bundle branches. after that the impulse contracts the purkinje cells of the ventricular myocardium. finally the moderator bands relay the message to the papillary muscles.

and the blood flows through the body.

Pig heart.

it was strange taking off the lungs from the heart. i'd like to dissect the lungs after we are done with the heart. it took me a while to accept the fact that i'm dissecting these animals. now i find it really interesting.

heres a pic of a pig heart.






its not very detailed.

heres a cross section:






we also have 15 terms to know and love

Trabeculae Carnae
Pectinate
Chordae Tendinae
Papillary
Brachiocephalic
Myocardium
Circumflex
Eustachian Valve
Sinus of Valsalvia
Tricuspid Valve
Mitral Valve
Great Cardiac Vein
Middle Cardiac Vein
Left Anterior Descending Artery
Posterior Descending Artery

fun fun