From early in embryonic
development, our body has to respond to its internal and external
environments. The levels of the solutes in our blood must be
regulated. We must continually respond to nerve signals triggered by
events occurring around us.
One way our body responds is
through chemical signals called hormones. Hormones are secreted by
the endocrine glands.
In this Lesson, we'll look at
some vertebrate endocrine glands. We'll introduce the glands and
discuss the hormones secreted by each gland. We'll also see how
hormones work together to maintain homeostasis.