Hormonal system, Science

Hormonal system:

Most of us are not even aware that another system works constantly, along with  the nervous system and the muscles, to direct our bodily functions. The system depends on chemical substances  called hormones  that are released by  special glands called endocrine glands. These glands have no opening or ducts but release  their secretions directly into the blood stream as it passes through their.tissues. You can see theirlocation  in the body in Fig.   

1340_hormonal system.png

Each hormone acts on a certain organ in a specific way. Many of the effects of hormones arlong term changes,  for example,  the changes that take place in the body during growth and sexual maturity. However, some of the changes may be quick like the ones that occur whenthe heart rate and breathing rate is increased or decreased. Alias of some of the major endocrine glands a!ong  with the hormones they secrete is given in Table.  You are  not expected to remember  each of them. The information is providedin case, you are curious to know more about these glands. You can see  that these hormones are  vital for the proper functioning  of the body. They regulate the chemical reactibns  in the body and consequently play a critical role in maintaining nohal physical conditions or homeostasis. If hormones are to serve a regulatory function. they must be produced at the proper time.  in proper amounts. This is controlled by  the brain, receiving information from all parts of  the body and giving . appropriate signals to the glands. This feedback system is very much like a thermostat that controls  temperature in a machine. 

Posted Date: 9/28/2012 8:49:18 AM | Location : United States







Related Discussions:- Hormonal system, Assignment Help, Ask Question on Hormonal system, Get Answer, Expert's Help, Hormonal system Discussions

Write discussion on Hormonal system
Your posts are moderated
Related Questions
Which are clouds formed at the highest altitude: cirrocumulus

what is force?

Determine the term - soil moisture The higher the soil moisture, the more rapid is the rate of reaction. The quantity of liming material to be applied to raise the soil pH to a

Explain Physiology of Gastrointestinal System In this unit we shall focus on the gastrointestinal system. The gastrointestinal system, you would realize, is also referred to as


what is ecology

What are all the planets in our solar system?

Unit 1 : Due this friday. 11/09 ........ 150 word.. no more than 190 word Discussion topic #1: Drawing upon two major conclusions from the author, explain why the artic


Conservation of mineral resources: Mineral reserves are present in a limited quantity and they can be exhausted. At  the present rate of consumption many of  them will not last