TYPES OF CELLS IN HUMANS
How many different types of cells are in the human body? There are about 200 different types of cells in the body. Here are just a few examples: red blood cells (erythrocytes) skin cells neurons (nerve cells) fat cells Humans are multicellular, complex organisms. The cells inside our bodies are “specialized.” This means that each type of cell performs a unique and special function. For this reason, each of the 200 different types of cells in the body has a different structure, size, shape, and function, and contains different organelles. For example: Cells in the brain may be longer in shape so they can transmit signals more efficiently. Cells of the heart have more mitochondria because they need a lot of energy. Cells in the respiratory system are responsible for taking up oxygen and releasing carbon dioxide. All the cells work together to keep the human body running efficiently.