★ Heart Quiz
What are the thick inferior chambers of the heart that pump blood into the arteries called?
A. Ventricles
B. Atria
C. Auricles
D. Trabeculae carneae
E. AV valves
Select your answer:
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Parathyroid Gland › ViewWhere is the calcium absorbed from when PTH activates vitamin D?
A. stomach
B. intestines
C. esophagus
D. bone
Endocrinology › View
Which best describes the characteristics of a TARGET CELL?
A. Cell that contains receptors for a specific hormone
B. Cell that sends chemical messengers to other cells
C. Cells that are targetted by hormones