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

Cardiovascular, respiratory and digestive system

Extracts from this document...

Introduction

´╗┐Cardiovascular, respiratory and digestive system The cardiovascular system, also known as the circulatory system uses the blood to carry oxygen and nutrients to the body?s cells and then takes the waste products from them. The cardiovascular system contains ? the heart which is a muscle that acts like a pump to keep blood moving, the arteries which carry blood from the heart, the veins which carry blood into the heart and the capillaries which are tiny vessels that are near the body cells. The cardiovascular system carries oxygenated blood on the right of the diagram and deoxygenated blood on the left. deoxygenated blood travels from the head and the liver and the rest of the body, to the heart, and from the heart to the lungs. ...read more.

Middle

The lungs have the gas exchange surfaces, bronchiole which is smaller tubes which are inside the lungs and come from the bronchus to the alveoli. The alveoli are tiny air sacs at the end of the bronchioles and this is where gas exchange occurs. Ribs which give a moveable cage and to protect the lungs, the intercostals muscle is what helps the ribcage tpo change volume. The diaphragm work with the intercostals muscle to make ventilation happen. http://mrediv5.edublogs.org/files/2013/09/respiratory-system-diagram-1reje5r.jpg The digestive system is an organ system which humans can exchange substances with the environment. It contains many parts which have different functions. Digestion breakdown larger molecules into smaller molecules so they are soluble and can get absorbed by the body. ...read more.

Conclusion

is at the ileum which is at the end of the DS. This is where nutrients are absorbed and they go through the hepatic portal vein to the liver and then to the rest of the CVS. The link between the CVS and RS is simple, as cardio is the heart and lungs and vasculated means the blood vessels found in the body the air from the environment is pulled into the alveoli which is in the lungs and this is vascular which means it is part of the cardiovascular system. This is where gas exchange occurs ? oxygen goes in and carbon dioxide goes out- and then it is the RS which brings in oxygen into the body and removes carbon dioxide. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Humans as Organisms section.

Found what you're looking for?

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

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 GCSE Humans as Organisms essays

  1. How the respiratory system is adapted for the purposes of gas exchange

    The inner surface of the trachea is lined with ciliated columnar epithelium as with the nasal cavity, the outer wall contains C-shaped cartilage and fibrous and elastic tissue for strength and to keep the passageway open at all times. The trachea divides off into the left and right bronchi, similar in structure to the trachea, only smaller.

  2. Cardiovascular and Respiratory Systems

    The heart is divided into left and right by a cell wall called the septum. The heart weighs about 250 grams in adult females and 300 grams in adult males. It is able to contract rythmatically independent of the nerve supply because, it is stimulated by an area of specialised tissue in the right atrium called the sino-atrial node.

  1. The cardiovascular and respiratory system

    When the blood reaches the heart it re-enters through the vena cava and into the right atrium. It is then pumped down into the right ventricle, where it is move up towards the pulmonary artery to make its way back through the pulmonary CV system and the cardiovascular cycle continues.

  2. human body system

    skeletal muscles 5) tendons (attaching muscle to bone) Our back bone is made up of 33 separated bones called vertebrae. They have joints between them so we can bend and twist. Our vertebrae are supported by strong muscles. Each vertebra is hollow inside the space is the spinal cord.

  1. Physiology and anatomy of the cardiovascular system

    Structure of Blood Vessels All over the human body there are three main types of blood vessels: arteries, veins and capillaries. Arteries are the vessels that carry blood away from the heart and to the rest of the body; these do not contain valves and have a relatively small inner diameter.

  2. OBESITY & THE CARDIOVASCULAR SYSTEM

    These are the vessels that carry blood away from the heart. Blood leaves the left ventricle (systemic circulation) through the aortic artery (arteries carry blood at high pressure so artery walls have to be thick, strong and elastic) which divides into progressively smaller branches to the smallest of the arteries, arterioles.

  1. Investigating the control of the cardiovascular system.

    * Also that they haven't got a cold or an illness The health and safety risks involved in this monitoring There are many risks involved in using the blood pressure machine as if you don't use it properly it could lead to an accident.

  2. Digestivesystem / Cardio-respiratory System Assignment

    This absorption causes a state of satiety and hunger decreases. Within a few hours after we eat, the concentration of these nutrients falls as they are used for fuel. As the available nutrient concentration in the blood falls, the satiety level decreases and hunger signals begin to start once again.

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