Home » Paragraph Writing » Paragraph on “Glands and Hormones” complete paragraph for Class 9, Class 10, Class 11 and Class 12

Paragraph on “Glands and Hormones” complete paragraph for Class 9, Class 10, Class 11 and Class 12

Glands and Hormones

Our body has various glands which secrete chemical substances. These include the Pituitary gland, Thyroid gland, Pancreas, Adrenal glands, Ovaries, Testes etc. Glands are primarily of two types i.e. Endocrine glands and Exocrine glands. Endocrine glands secrete substances called Hormones which are sent directly into the blood stream. On the other hand Exocrine glands release their substances through tubes into the intestines or onto the skin. Examples of exocrine secretion include sweat glands which release sweat to the pores of the skin, salivary glands which produce saliva in the mouth, tear glands in the eyes produce tears, and digestive glands in the intestines and stomach produce digestive juices to help in digestion. Also falling in this category is the liver which produces bile. Endocrine glands do not have any ducts so they release substances called Hormones into the blood stream. These hormones control body functions including reproduction and growth. The most important endocrine gland is the Pituitary gland which is as big as a pea and is located in the brain. This gland secretes nine different hormones which influence different body functions. Another important Endocrine gland is the the Thyroid gland which, controlled by the Pituitary gland, secretes hormones which control the rate at which our body uses energy. The substance which is secreted by the glands is called a Hormone.

Various types of hormones are secreted by the glands and each plays an important role in controlling some body function. For example the Thyroid gland produces a hormone called Thyroxine which controls the pace of chemical process in the body. In females the ovaries produce Oestrogen and Progesterone which control the formation of female characteristics and pregnancy respectively. In males the testes produce Testosterone which controls the formation of male characteristics.

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