4.2.1 Principles of Organisation
Cells
- Each living organism is made from many cells being put together
- Cells are the basic building blocks of all living organisms
- Cells are specialised and differentiated, and are adapted to their specific function
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Tissues
The same type of specialised cell, with similar structures and functions, come together to form a tissue
- Many cardiac cells make up cardiac tissue and work together to contract and push blood out of the heart
Can you name some examples of tissues?
- Cardiac tissue
- Epithelial tissue
- Nervous tissue
Organs
Different types of tissues come together to make an organ
- The heart is an organ, and is made from muscular, epithelial, nervous and connective tissue
Can you name some examples of organs?
- The heart
- The lungs
Organ Systems
- Organs systems are made up of different organs
- Different organs are grouped to perform a function
Can you name some examples of organ system?
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