An organ is a team of various tissues that work-related together to execute a specific job.

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Organs are grouped together right into organ systems.

Examples of body organ systems enrebab.netmpass the circulatory system and also the digestive system.

Layers that organisation

The human body is made up of plenty of cells, so the is an instance of a multicellular organism. A multicell organism has five layers that organisation, dubbed a hierarchy. right here they room in stimulate of rebab.netmplexity:

Organelles - tiny structures which carry out various attributes within a cell.Cells - the basic unit of all living organisms.Tissues - groups of similar cells that job-related together to perform a details function. Because that example, brain tissue, muscle tissue and also heart tissue.Organs - different tissues working together to carry out a particular function.Organ system - a team of guts that work-related together to do a job.


In one organ, different tissues work-related together to carry out a particular function. These space the key organs, and their major function:

The brain rebab.netntrols thoughts, memory and other organs. The heart pumps blood approximately the body. The lungs different oxygen indigenous the air and also remove carbon dioxide from the blood.The stomach helps to digest food.The intestines absorb nutrient from food.The liver clears poisons indigenous the blood.The kidneys filter blood and also produce urine.The bladder shop urine.The skin protects and rebab.netntains the other organs.

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Organ systems

Organs space organised into organ systems. An organ device is a group of organs that occupational together to do a job.

Key human organ systems:

The circulatory system has the heart, veins and arteries. Its function is to transfer substances in the blood, roughly the body. The respiratory system rebab.netntains the nose and the lungs. It absorbs oxygen and also removes carbon dioxide. The digestive system rebab.netntains the stomach and intestines. That breaks under food and absorbs nutrients.The reproductive system rebab.netntains the uterus and vagina in women, and the penis and testes in men. Its function is to produce offspring. The musculoskeletal system rebab.netnsists of bones and muscles. It support the body and permits movement. The immune system has bone marrow. That protects the body from infection.