Question

What is the relationship between a cell, a tissue, an organ and an organ system?

Answer 1

1. Cell: The structural and functional unit of life is known as a cell. Example: nerve cells, muscle cells, etc.
2. Tissue: Tissues are a group of cells that are involved in a particular function of the body. Example: bone, blood, etc.
3. Organ: Different types of tissues aggregate to work together to perform a single function, this organization of tissues is called an organ. Example: Stomach, kidney, heart, etc.
4. Organ system: An organ system comprises a group of organs and different types of tissues that perform a group of functions. Example: digestive system, circulatory system, etc.
5. Therefore, cell ---→ tissue ---→ organ ---→ organ system.