Name the following:

The artery which carries deoxygenated blood.

Name the following:

The kind of blood cells which can squeeze out through the walls of one category of blood vessels.

The phase of the cardiac cycle in which the auricles contract.

Name the following:

The valve present in between the chambers on the right side of the human heart.

Name the following:

The phase of the cardiac cycle in which the ventricles get filled with blood from the atrium.

Name the following:

The fluid found between the membranes of the heart.

Note the relationship between the first two words and suggest a suitable word/words for the fourth place:

Lub : Atrioventricular valves :: Dup : _____.