• 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

    P2: Describe the structure of the tissues of the body and their role in ...

    4 star(s)

    For example the skull protects the brain and the rib cage protects the heart, lungs and kidneys. Cartilage: Cartilage is softer and more flexible compared to the bone. Cartilage is found in very few places within the human body. The hyaline cartilage is the most widespread cartilage, it contains collagen fibre which are covered with rubbery matrix.

  2. Marked by a teacher

    Investigating Diseases. I will be looking at and comparing communicable and non communicable diseases. ...

    4 star(s)

    This can cause them to become unfit, they may not be as active as they were before. Intellectually- They will find it hard to think about other things i.e. their future, education, friends, family and etc... Emotionally- they will feel upset and low self esteem about themselves.

  1. Explain the importance of homeostasis in maintaining the healthy functioning of the body. examples ...

    If blood glucose level becomes too high it's very dangerous and may make a person dehydrated and exhausted. Hypo may cause, * Weakness * Dizziness * Sweating * Hunger * Shaking * Mood swings Low blood glucose can happen if a person does not have enough sugar from the food

  2. Unit 11 - Working in Health and Social care - SECTION B - SUBSECTION ...

    the person could not for fill a task or meet requirements. Workers are usually treated equitably on the basis of gender to allow males and females doing the same or a similar job to be paid on comparable scales with equivalent opportunities for promotion.

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

    Magnesium is found in bone and teeth, as well as being used in contraction of muscles and is also an activator for various enzymes. 5. Chloride is required to produce hydrochloric acid in the stomach. There are trace elements present in the body.

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

    The cardiovascular system will have delivered oxygen and glucose to the cells where ATP is produced. There are nine major systems working in conjunction with one another to keep the body operating at peak performance: 1) Skeletal 2) Musculoskeletal 3)

  1. 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

  2. Outline current legislation, guidelines policies and procedure within own UK Home Nation affecting the ...

    If employment is terminated or a person suffers as a result of whistle blowing they are then protected by law under the Public Interest Disclosure Act 1998, this law was brought in to protect whistle blowers from detrimental treatment by their employers.

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