Unit 3 - P3- Produce a series of annotated diagrams to provide an overview of each the body systems.

The nervous system consists the brain and the spinal cord which is the central nervous system and the nerves that pass through the whole body is the peripheral nervous system.

The nervous system also works with the body’s important functions i.e. breathing, and it gives human beings the ability to observe, comprehend and respond to the world.

The reproductive system is the gathering of organs working together to produce new life however male and females reproductive system is different as they consist in different purposes.

The males system involves two parts known as the testes where the sperm is created and the penis which are both outside of the abdominal making the regulation of sperm easier as it requires specific temperatures to live and to produce sperm.

On the other hand the female reproduction system also contains two parts which is the vagina and the uterus which operate as containers for semen and the ovaries. It produces necessary egg cells for reproduction and female sex hormones are produced to maintain the reproductive cycle.

The reproduction system contains two ovaries both attached to a fallopian tube which the thick walled uterus/ womb is connected to the vagina.

The digestive system is located in the stomach and it’s an abdominal organ which lies beneath the diaphragm on the left side of the stomach. The digestive systems main function is to break down food molecules into simpler substances which will then be absorbed and delivered to the cells. There are two parts to the digestive system, the mechanical and chemical process.  After the digestive process it then moves onto the last stage, excreting all waste products from the body.

The digestive system is made up from organs such as the mouth, stomach, oesophagus, liver small intestine, gallbladder, colon and rectum.

The cardiovascular system function is to circulate blood through the vessels within the body to provide cells with oxygen and nutrients. Its also helps remove metabolic waste. Oxygenated blood leaves the heart, through the arteries and it gives out nutrients and oxygen to the whole body for carbon dioxide and waste products.

The respiratory systems main function is to supply of oxygen to the blood which then supplies oxygen to all parts of the body which is done while breathing. When the oxygen is breathed in it passes into the alveoli and extends through the capillaries into the arterial blood and carbon dioxide follows the same routine out of the lungs when exhaling. The respiratory system also made up of the nose, mouth, trachea, lungs, diaphragm and intercostals muscles.