An overproduction of somatotropin before adolescence, causes gigantism.

The duct which conveys sperm from the testis to the ejaculatory duct, is vas deferens.

Glucagon brings about the breakdown of liver glycogen and the process is known as glycogenolysis.

The constancy of the internal environment in the body is called homeostasis.

The secretion of epinephrine (adrenalin) by the adrenal medulla is under the control of sympathetic nervous system.

Leydig cells constitute the endocrine portion of the testes.

Aldosterone is an example of hormones,  which influence salt and water metabolism in the body; such hormones are collectively called mineralocorticoids.

The hormonal substances, released by the exocrine glands in the external environment, which serve as a means of communication between members of a particular species are called pheromones.

The other name for the pituitary gland is hypophysis cerebri.

In the body iodine is needed for the synthesis of thyroxin.

The hormones from the pineal gland influences sexual development and may reduce sexual activity is called melatonin.

When the process of birth starts, the uterus begin to contract rhythmically about once every ten minutes; this is the onset of labour.

Hypothyroidism during the adult years causes myxedema. Myxedema is the swelling of the skin and underlying tissues giving a waxy consistency, typical of patients with underactive thyroid glands.

The recording of basal body temperature (BBT) helps to determine ovulation.

Chromaffin cells are the hormone producing cells of adrenal medulla.

Cretinism is a clinical condition which is associated with hyposecretion of certain hormones during the growing years; these hormones are thyroid hormones.

Cryptorchidism is a condition in which the testis are abdominal.

The source of melanocyte stimulating hormone is anterior pituitary.

Chemically the female sex hormones estradiol and progesterone are steroids.

Before ejaculation in mammals the spermatozoa are stored in epididymis.