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The chin is_________ to the mouth, and the knee is_________ to the ankle.

Which type of immunity is passed from a mother to a fetus?

In anatomical terms, the arm is the_________ region and the fingers are the_________ region.

Which formed element provides defense  against pathogens?

Excess production of  RBC’s is a condition called ________________

The T wave of an ECG is produced by the _________.

Each lung has only one _________.

The iron rich molecule in the RBC that binds to oxygen is ______________.

The first heart sound (lub) results from the closing of the _________ valves in the beginning of _________.

The _________ valve prevents backflow of blood from the aorta into the _________ ventricle.