The endocrine system comprises glands distributed throughout the body and is responsible for secretion and regulation of hormones. The endocrine system is made up of the following glands:
• Pituitary gland
• Adrenal glands
• Thyroid gland
• Parathyroid glands
• Ovaries, testes
Figure 4.1 shows a diagram of the endocrine system.
Figure 4.1. Endocrine system.
Problems with the endocrine system occur when there is too little production or excess production of hormones. The onset of endocrine disorders can appear suddenly and be life-threatening, or can appear gradually.