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P3: Outline the Gross Structure of All the Main Body Systems

  • Submitted by: anisah123
  • on December 3, 2013
  • Category: Social Issues
  • Length: 4,450 words

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LO1 – Know the organisation of the human body

P3: Outline the gross structure of all the main body systems


Body systems:

  1. Cardiovascular system

  2. Respiratory system

  3. Digestive system

  4. Renal system

  5. Nervous system

  6. Endocrine system

  7. Reproductive system (male + female)

  8. Musculoskeletal system

  9. Lymphatic system

  10. Immune system

  1. Cardiovascular system

What is the cardiovascular system?

The cardiovascular system is a complex network of the heart, blood vessels and blood. Its job is to deliver nutrients to the body and remove by-products from the tissues. At the centre of the cardiovascular system is the heart--a four chambered pump that dispenses blood to the arteries. The arteries carry nutrients and oxygenated blood to the body's tissues. The veins return de-oxygenated blood to the heart, where the cycle repeats itself continuously.

The function of the cardiovascular system:

The cardiovascular system consists of the heart, blood vessels, and blood. This system has three main functions:

    • Transport of nutrients, oxygen, and hormones to cells throughout the body and removal of metabolic wastes (carbon dioxide, nitrogenous wastes).

    • Protection of the body by white blood cells, antibodies, and complement proteins that circulate in the blood and defend the body against foreign microbes and toxins. Clotting mechanisms are also present that protect the body from blood loss after injuries.

    • Regulation of body temperature, fluid pH, and water content of cells.


The structure of the cardiovascular system:

The structure of the circulatory system is a...

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