This system protects the body from damage from the outside world and the harmful substances. It consists of the skin, hair, nails and sweat glands. The word integument comes from the Latin word integumentum, meaning “cover” or “enclosure. It is the most visible organ system and one of the most complex. The Skin …
This system gives individuals the ability to move, using muscles and the skeleton. It consists of the body’s bones, muscles, tendons, ligaments, joints, cartilage, and other connective tissue. Muscles Muscles are classified into three different types, which are skeletal, smooth and cardiac. Skeletal muscles, also known as striated due to its appearance, or voluntary…
The Respiratory System We have already learnt how the circulatory system is responsible for supplying oxygenated blood to all parts of the body. We are now going to look at the respiratory system, which works hand in hand with the circulatory system. The main function of the respiratory system is to allow oxygen to enter…
The Circulatory System The main functions of this system are to supply oxygenated blood throughout the body, and to remove waste products, such as carbon dioxide. It is able to carry out this task by using three organs; the blood, vessels and the heart. Blood If we think of the circulatory system as a…
The human body is a complex organism made up of many structures. Before we begin to look at the systems that allow us to function, we need to have a basic understanding of how it all works. Our bodies are made up of small structures that all work together. The most basic, simplest unit in…
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