Levels of Organisation (2)

Organs (1)

A group of different tissues combine to form organs

Organs (2)

Organs perform special functions as a result of the combination of tissues that form the organ

Tissues that form the heart organ

The heart organ is composed of epithelial tissue, cardiac muscle tissue, connective tissue and nerve tissue

Cell organization in multicellular organisms (1)

Each multicellular organism is made up of many organs

Cell organization in multicellular organisms (2)

Different organs work together to carry out a specific function to form an organ system

Main organ systems in the human body (1)

Respiratory system that consists of trachea, nose, lungs and diaphragm

Function of respiratory system

Exchange of oxygen and carbon dioxide gases between the body and external environment

Main organ systems in the human body (2)

Muscular system that consist of skeletal muscles, smooth muscles and cardiac muscles

Function of muscular system

Contracts and relaxes to produce movements in different parts of the body

Main organ systems in the human body (3)

Male reproductive system that consist of testes, prostate gland and penis