What refers to contraction of the atria?

Be sure to indicate right or left. Identify the specific structure indicated by the arrow.

Which of the following would you find in the ventricles, but not in the atria?

Identify the specific vessel indicated by the black arrow. The vessel is shown at a distance and close up. You do not need to indicate right or left.

Identify the specific type of lymph node at the tip of the arrow.

Together the group of vessels indicated by the yellow arrows is the _____. The vessels are shown at a distance and close up.  

Identify the specific chamber. Be sure to indicate right or left.

You can find the femoral artery, femoral vein, and femoral nerve in the anteromedial thigh. Which of those structures is most medial?

The artery indicated by the black arrow is the right _____.

The percentage of blood volume consisting of packed erythrocytes is the _____.