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Hormones are an alternate way of coordination in animals. It helps in coordinating information when it comes to wider distribution of information to all tissues. Hormones help in regulating growth in our body. Adrenaline hormone from endocrine gland helps in stress situations. Thyroxin hormone is necessary for balanced growth. Growth hormone controls growth in our body. Insulin hormone regulates blood glucose level. Get Hormonal Coordination in Animals Homework Help from expert tutors at Tutorspoint

Hormonal Coordination in Animals Homework Help

Hormones are defined as chemical compounds secreted by specialized cells or glands which are helpful in transmitting information to different locations. It is also helpful in the wider distribution of information in animals. Hormones constitute an alternate way of coordination in animals besides electrical impulse transmission of information using nerve cells.

Growth regulation by hormones

Hormones secreted by various glands like endocrine glands (Fig 1) in our body helps in regulating growth by performing certain specific functions e.g. adrenaline, thyroxin, growth hormone, insulin, Testosterone, and estrogen. Secretion of these hormones should be in an accurate quantity and very precise as minor changes in their level in the body may result in serious effects.

Endocrine glands in female and male

Adrenaline

This hormone is secreted by the adrenal gland and is released in stress situations like fear, pain, anxiety etc. It generally acts on the heart. The response of this hormone includes faster heartbeat, increased breathing rate and contraction of muscles around digestive system, skin, diaphragm and rib muscles.

Thyroxin

This hormone is secreted by the thyroid gland and helps the body to get a balanced diet for proper growth. Thyroxin plays a major role in metabolizing protein, fats etc. Iodine plays a major role in the secretion of thyroxin. This is the reason why iodized salt is advised in the diet. Deficiency of iodine leads to goiter disease with symptoms of the swollen neck.

Growth hormone

This hormone helps in proper and balanced growth and development of the body. Deficiency of this hormone in childhood may lead to dwarfism.

Insulin

This hormone is secreted by the pancreas and it regulates the glucose level in blood. As the level of insulin decreases in our body concentration of glucose starts increasing leading to diabetes and many other side effects.

Testosterone and estrogen

Testosterone in case of males and estrogen in case of females are sex hormones that are produced at the time of puberty and helps in the development of secondary sex characters in our body.