Human organ systems
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Today we are going to discuss about one of the most important part of human body that is our organ system.
organ system is the group of organs which together perform some specific functions.
In human body organ system are eleven (11) in number. Which are following:---
1. Digestive System .
2. Respiratory System.
3. Skeletal System.
4. Urinary system/Renal System.
5. Nervous System.
6. Lymphatic System / Immune system.
7. Muscular system.
8. Integumentary system/ Exocrine system.
9. Endocrine system.
10. Reproductive system.
11. Cardiovascular System.
Let us learn more about these one by one:------
1. Digestive System:- This system is responsible for intake and outoff of food as well as maintains the nutrition of body by digesting and absorbing it . There are 11 organs present in this system..
2.Respiratory System:- This system is mainly responsible for exchange of gases in human body by the process of Inhalation and exhalation. There is about (6) organs in this system.
3.Skeletal System:- This system provides frame to the human body.Bone and cartilage are major elemants of skeletal system. Osteology is the study of skeleton. It is consists of 206 bones in adult and having 300 bones at the time of birth in humans.
4.Urinary System/Renal System:-This system is mainly responsible for purification/filtration of blood and removal of harmful. Urea compound from the body in the form urine .
5. Nervous System:- It is the network of nerve cells and fibres which transmits nerve impulses between parts of the body. Neurone is the Smallest unit of nervous system.
6.Lymphatic System / Immune system :-
7. Muscular System :-
The muscular system is composed of specialized cells called muscle fibers. Their predominant function is contractibility. Muscles, attached to bones or internal organs and blood vessels, are responsible for movement. Nearly all movement in the body is the result of muscle contraction.
8 Integumentary system/ Exocrine System:- The integumentary system comprises the skin and its appendages acting to protect the body from various kinds of damage, such as loss of water or damages from outside. The integumentary system includes hair, scales, feathers, hooves, and nails.
9.Endocrine system:- The endocrine system is a chemical messenger system comprising feedback loops of the hormones released by internal glands of an organism directly into the circulatory system, regulating distant target organs. In vertebrates, the hypothalamus is the neural control center for all endocrine systems.
10. Reproductive system :- the system of organs and parts which function in reproduction consisting in the male especially of the testes, penis, seminal vesicles, prostate, and urethra and in the female especially of the ovaries, fallopian tubes, uterus, vagina, and vulva.
11. Cardiovascular System :- The cardiovascular system is sometimes called the blood-vascular, or simply the circulatory, system. It consists of the heart, which is a muscular pumping device, and a closed system of vessels called arteries, veins, and capillaries.whose main function is to pumb the blood to each and every part of body.
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