Athlete's foot (tinea pedis<span>) is a </span>fungal<span> infection of the skin of the foot. Most athlete's foot is caused by one of two types of fungus. Trichophyton </span>mentagrophytes<span> often causes toe web or vesicular (blisterlike) infections. </span>
<span>The gland which signals other glands to secrete hormones is the pituitary gland.</span>
Cancer is the typical result of cell division
Elements in the first row (hydrogen and helium) will have outer electrons in the first energy level. Their principal quantum number is 1. Elements in the second row (lithium through neon) will have valence electrons in the second energy level with a principal quantum number of 2.