• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

The Main Body Systems

Extracts from this document...

Introduction

The cardiovascular system The key features of the cardiovascular system are the heart, blood, and blood vessels such as veins, arteries and capillaries. It provides pulmonary circulation where blood is sent to the lungs to be is oxygenated; and systemic circulation so the oxygenated blood can be delivered to the rest of the body. Blood consists of plasma, red blood cells, white blood cells, and platelets. in pulmonary circulation Oxygen deprived blood travels to the heart by the vena cava after being used by the body. The blood then enters the right atrium of the heart and flows through the tricuspid valve into the right ventricle, from which it is then pumped through the pulmonary semilunar valve into the pulmonary artery to the lungs. Gas exchange occurs in the lungs, whereby CO2 is released from the blood, and oxygen is absorbed. The pulmonary vein returns the now oxygen-rich blood to the heart. Following this it is pumped around the rest of the body as systemic circulation. ...read more.

Middle

The hydrochloric acid has a low pH, which allows enzymes to work more efficiently. After a few hours a thick liquid is produced called chyme. Chyme will go through the small intestine, where 95% of absorption of nutrients occurs, through the large intestine with waste material eventually being eliminated during defecation. The renal system The Urinary System filters out excess fluid and other substances from the bloodstream. The substances that are filtered out from the body take the form of urine. Urine is a liquid that is produced by the kidneys, collected in the bladder and then excreted through the urethra. Urine is used to extract excess minerals or vitamins as well as dead blood cells from the body. The Urinary organs include the kidneys, ureters, bladder, and urethra. The Nervous system The nervous system is a network of specialized cells called neurons that transmit signals between different parts of its body The central nervous system contains the brain, spinal cord, and retina. ...read more.

Conclusion

The muscular system The muscular system is consists of three types of muscles; skeletal, smooth and cardiac muscles. It permits the control and movement of the body, maintains posture and structure and also circulates blood throughout the body. The muscular system in is controlled through the nervous system, although some muscles can be completely autonomous such as cardiac muscles. The Skeletal system The human skeleton consists of fused, such as the pelvis and the cranium, and individual bones, such as the Hyoid bone, which is located in the neck and serves as the point of attachment for the tongue, which are supported and supplemented by ligaments, tendons, muscles and cartilage. Some bones such as the Hyoid bone do not connect with other bones in the body but is supported by muscles and ligaments instead. The immune system The immune system consists of biological structures that protects against disease. In order to function properly, the immune system must detect a wide variety of pathogens and distinguish them from healthy tissue and helpful bacteria. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Healthcare section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Here's what a teacher thought of this essay

4 star(s)

A nice essay that discusses the main systems of the body. It is short and concise and would be an ideal starter piece to extend and build upon.

The writer has included the basics and there is ample opportunity to extend and add further detail. I feel that the work would benefit from some diagrams to show the major organs and put the systems into context.

****

Marked by teacher Sam Morran 13/08/2013

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Healthcare essays

  1. Marked by a teacher

    The Role of Energy in the Body and the Physiology of Three Named Body ...

    5 star(s)

    three cusps forming each valve are half-moon shaped); when the blood has been forced into the arteries by the ventricular muscle contractions, the blood must not be allowed to fall back into the ventricles when they relax. The valves mare also called the pulmonary and aortic valves.

  2. Describe the distribution of water in the body and the function of constituents of ...

    The water cycle is worked through the gravity (hydrological). 1. Materials can be transported between the cytoplasm and the outside cell environment by different process, some of which may require energy in the form of ATP. Active transport can be used in order to get the molecules to go against the concentration gradient, exchange to be faster etc.

  1. Describe the structure and main functions of all major body systems.

    The lymphatic system's main function is to remove excess tissues and proteins from the space between the cells, it also moves fatty acids from the digestive system but also defence of the body. The immune system's main function is to defend against an invasion by micro-organisms which cause ill health

  2. Use examples to explain how body systems interrelate with each other

    Our body systems work together in several ways for example if a person is exercising their somatic nervous system will tell the skeletal muscles to start working. The working muscles will demand energy and the energy will be produced by ATP in the cells.

  1. Child Development (AO3)

    Interactive play This is when children play together. They interact with one another by sharing ideas and supporting each other when playing. Heuristic play This is when there are objects involved to support the play activities. Indoor/Outdoor This type of play can occur indoors or outdoors.

  2. P4- Explain the physiology of two named body systems in relation to energy metabolism ...

    The swallowed bolus remains in the gullet for only a few seconds. The gullet is mainly a transit for food boluses. It moves by muscular slimming down known as peristalsis. http://www.umm.edu/graphics/images/en/8710.jpg The Stomach The stomach is the broadest part of the nutrient canal, which is tucked mainly behind the rib

  1. Health and Social Care Unit 3 Health and Well being

    I did this by discussing and incorporating a range of different definitions and opinions on health such as the holistic definition. I also spoke to health professionals about how they described the different definitions discussing which their favourite was and why.

  2. Health and Social Care Communication. Examples from work with a service user with ...

    It could also be irritable if there is too much or not enough light. Too much light could give Majella and I a headache whereas not enough light could make it difficult for effective communication because I will not be able to see her facial expressions, body movements, ect.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work