The concept of hormones, their biological role.
ENDOCRINE SYSTEM – system of glands that produce hormones and secrete them directly into the blood. These glands, called endocrine glands or ductless, have no excretory ducts; they are located in different parts of the body, but functionally closely related. The figure shows the location of major endocrine glands in the human body. Absent the figure the pineal gland (epiphysis), studied enough, but now it belongs to the endocrine system. This gland is a small formation in the midbrain, and in mammals, it plays a role in neuroendocrine transducer, which goes from the eye through the brain Continue reading