So pituitary gland is called the master gland because it secretes tropic hormones which control the hormone secretions from rest of the endocrine glands. (1 mark)
Hormones secreted from the pituitary gland help control the following body processes:
Growth (GH), Blood pressure, Some aspects of pregnancy and childbirth including stimulation of uterine contractions during childbirth (Parturition), Breast milk production, etc. (1 mark)