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Human body

The heartland of medicine is the human body. It is the science that deals with diseases (illnesses), the best ways to prevent them, and the best ways to return to a healthy condition. The human body is an incredible machine.

Cells are the basic building units of life, in other words, all organisms are made of cells. Living organisms are classified as unicellular or multicellular. Unicellular organisms are living things made of a single cell. A few examples of unicellular organisms include amoeba, bacteria, and paramecium.

Multicellular organisms are those that are made up of more than one cell. Life thrives on Earth as plants, animals, and other living things. It is full of multicellular (many-celled) organisms.

Multicellular organisms are those that are made up of more than one cell

Multicellular organisms are those that are made up of more than one cell

All cells are divided into two types: prokaryotic and eukaryotic cells. Prokaryotic cells are those that do not have a nucleus. They are much smaller and simpler than eukaryotic cells. Bacteria and archaea are both prokaryotes. Bacteria come in different shapes and sizes (spheres, rod-shaped, and spirals). Bacteria can be found in soil, lakes, rivers, oceans, acidic hot springs and radioactive waste.

Eukaryotic cells have a true nucleus, which means the cell’s DNA is surrounded by a membrane. They are much larger and more complex than prokaryotic cells. Animals, plants, and fungi (yeast and mushrooms) are all eukaryotic organisms.

Biology is the most powerful technology ever created. DNA is software, protein are hardware, cells are factories, Arvind Gupta

Biology is the most powerful technology ever created. DNA is software, protein are hardware, cells are factories, Arvind Gupta

A group of cells with a specific function is called a tissue. An organ is a collection of tissues that has a specific and important role to play in the human body. Examples of organs are the stomach, heart, lungs, eyes, ears, and brain. An organ system consists of two or more organs working together to perform a specific function.

Our body is an incredible machine that works tirelessly to keep us alive! We need to take good care of it to stay healthy and live longer and better.

Best Free Anatomy Websites and Apps

Open Anatomy Project

Open Anatomy Project

Innerbody Research

Innerbody Research

Anatomy Learning

Anatomy Learning

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