The Endocrine system

The function of the system

The endocrine system includes all of the glands of the body and the hormones produced by those glands. The glands are controlled directly by stimulation from the nervous system as well as by chemical receptors in the blood and hormones produced by other glands. By regulating the functions of organs in the body, these glands help to maintain the body’s homeostasis. Cellular metabolism, reproduction, sexual development, sugar and mineral homeostasis, heart rate, and digestion are among the many processes regulated by the actions of hormones.
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The definition of homeostasis and its role in the endocrine system

Definition: Homeostasis is the ability to maintain a constant internal environment in response to environmental changes. It is a unifying principle of biology.


The nervous and endocrine system control homeostasis in the body through feedback mechanisms involving various organs and organ systems. Examples of homeostatic processes in the body include temperature control, pH balance, water and electrolyte balance, blood pressure, and respiration.

Negative feedback

negative feedback occurs when some function of a system ,process ,or mechanism is fed back in a manner that tends to reduce the fluctuations in the output ,whether caused by changes in the input or by other disturbances.An example of negative feedback in the body can be the human body temperature ,the hypothalamus of a human responds to temperature fluctuations and responds accordingly . If the temperature decreases ,the body shrivers up to bring up the temperature .


Diabetes type 1 & 2

Type 1 diabetes is a chronic condition in which the pancreas produces little or no insulin.Symptoms are excessive urination, sweating ,nausea ,excessive thirst ,fatigue ,or hunger ,sleepiness ,headaches blurred vision .The Prevalence are 200k to 3m U.S per year.Treatment includes taking insulin ,carbohydrate counting,eating healthy food and exercising regularly .

Type 2 diabetes is a chronic condition that affects the way the body processes blood sugar.Symptoms are fatigue ,excessive hunger , or increased thirst ,weight gain , blurred vision ,poor wound healing or frequent urination.The prevalence are more than 3m U.S cases a year. Treatment include healthy , regular exercise ,possibly ,diabetes medication or insulin therapy, Blood sugar monitoring .