Your patient with diabetes presents with dry, cracked skin. What is the most likely cause of this?

The tricuspid valve prevents blood from:

A) moving between the right and left ventricles. B) flowing from the right ventricle into the right atrium. C) bypassing the pulmonary vessels and entering the right heart. D) flowing backward through the left atrium.

Very young children tend to breathe predominantly with their diaphragm because:

A. their chest wall and ribs are very pliable. B. they require less tidal volume per breath. C. their intercostal muscles are not fully developed. D. there is no nerve innervation of the intercostal muscles.