|
|
|
2
|
blood vessels
|
|
5
|
A muscular walled tube
|
|
6
|
a large vein carrying deoxygenated blood into the heart.
|
|
7
|
two upper cavities of the heart from which blood is passed to the ventricles.
|
|
8
|
each of the two main chambers of the heart, left and right
|
|
|
|
|
|
|
1
|
A tube that carry's in most cases oxygen in the blood circulatory system
|
|
2
|
is one of three major types of muscle, the others being skeletal and smooth muscle.
|
|
3
|
In humans it passes over the heart from the left ventricle and runs down in front of the backbone.
|
|
4
|
separates 2 chambers
|
|
|
|
