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1. www.britannica.com › science › human-bodyHuman body | Organs, Systems, Structure, Diagram, & Facts ...

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   Sep 21, 2024 · Chemical composition of the body. Chemically, the human body consists mainly of water and of organic compounds —i.e., lipids, proteins, carbohydrates, and nucleic acids. Water is found in the extracellular fluids of the body (the blood plasma, the lymph, and the interstitial fluid) and within the cells themselves.

   • Author: The Editors of Encyclopaedia Britannica

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3. www.bbc.co.uk › bitesize › topicsWhat are the parts of the human body? - BBC Bitesize

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   The parts of the human body The human body comes in lots of different shapes and sizes but most are made up of the same parts which do the same job. We all have a skeleton.

4. en.wikipedia.org › wiki › Human_bodyHuman body - Wikipedia

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   The human body is composed of elements including hydrogen, oxygen, carbon, calcium and phosphorus. These elements reside in trillions of cells and non-cellular components of the body. The adult male body is about 60% total body water content of some 42 litres (9.2 imp gal; 11 US gal).

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     Parts of the body in English - Learn English Vocabulary

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     The Human Body: Anatomy, Facts & Functions

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     Body Structure | Definition, Function & Examples

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6. www.kenhub.com › en › libraryHuman body systems: Overview, anatomy, functions | Kenhub

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   • Skeletal system. The skeletal system is composed of bones and cartilages. There are two parts of the skeleton; axial and appendicular. The axial skeleton consists of the bones of the head and trunk.
   • Muscular system. The muscular system consists of all the body muscles. There are three muscle types; smooth, cardiac and skeletal muscles. Smooth muscle is found within walls of blood vessels and hollow organs such as the stomach or intestines.
   • Cardiovascular system. The cardiovascular system is comprised of the heart and the circulatory system of blood vessels. The heart is composed of four chambers; two atria and two ventricles.
   • Respiratory system. The respiratory system consists of a series of organs; the nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles and lungs (alveoli).

7. www.msdmanuals.com › home › fundamentalsIntroduction to the Human Body - Introduction to the Human ...

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   The biology of the human body includes. Physiology (how the body functions) Anatomy (how the body is structured) Anatomy is organized by levels, from the smallest components of cells to tissues and organs and to organ systems. Gross anatomy is the study of the body's organs as seen with the naked eye during visual inspection and when the body ...

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8. www.livescience.com › 37009-human-bodyWhat are the systems of the body? Fast facts about the human ...

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   Apr 5, 2024 · The different systems of the body interact with and rely upon one another. (Image credit: colematt via Getty Images) Immune: The immune system is the body's defense against bacteria, viruses and ...

9. People also ask

   What organs and systems are included in a human body?

   • For detailed discussions of specific tissues, organs, and systems, see human blood; cardiovascular system; human digestive system; human endocrine system; renal system; skin; human muscle system; nervous system; human reproductive system; human respiration; human sensory reception; and human skeletal system.

   Human body | Organs, Systems, Structure, Diagram, & Facts | Britannica

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   What are the parts of the human body?

   • The human body comes in lots of different shapes and sizes but most are made up of the same parts which do the same job. We all have a skeleton. The bones in your skeleton help you stay standing up and let you move around. They also protect the important organs inside you. Your ribs keep your heart, lung and stomach safe.

   What are the parts of the human body? - BBC Bitesize

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   What is the structure of the human body?

   • The human body is a complex, highly organized structure made up of unique cells that work together to accomplish the specific functions necessary for sustaining life. Overview of the Human Body: Ce... Anatomy is organized by levels, from the smallest components of cells to tissues and organs and to organ systems.

   Introduction to the Human Body - MSD Manuals

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   What is a human body composed of?

   • The human body is the entire structure of a human being. It is composed of many different types of cells that together create tissues and subsequently organs and then organ systems. The external human body consists of a head, hair, neck, torso (which includes the thorax and abdomen), genitals, arms, hands, legs, and feet.

   Human body - Wikipedia

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   How is anatomy organized in the human body?

   • Overview of the Human Body: Ce... Anatomy is organized by levels, from the smallest components of cells to tissues and organs and to organ systems. Gross anatomy is the study of the body's organs as seen with the naked eye during visual inspection and when the body is cut open for examination (dissection).

   Introduction to the Human Body - MSD Manuals

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   How does the body vary anatomically?

   • The body varies anatomically in known ways. Physiology focuses on the systems and organs of the human body and their functions. Many systems and mechanisms interact in order to maintain homeostasis, with safe levels of substances such as sugar, iron, and oxygen in the blood.

   Human body - Wikipedia

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10. www.medicalnewstoday.com › articles › organs-in-the-bodyOrgans in the body: Diagram and all you need to know

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    Jan 26, 2024 · Summary. The five vital organs in the human body are the brain, heart, lungs, kidneys, and liver. Other organs include the gallbladder, pancreas, and stomach. Organ systems, such as the nervous ...