The focus in each system will be to look at the main Researching, summarising, describing, suggesting, writing, presentingActivity: Differentiating between excretion and egestionActivity: Defining the main processes involved in reproductionCAPS suggests that you make a large outline of the human body for this section and draw each system on to it as it is dealt with.
The nerves work together to carry messages throughout the body.

It has a thick lining and muscular wall. These are:The blood is transported throughout your body and carries various substances. Their bodies quickly dehydrate and they become too listless to feed or drink, dehydrating their bodies even further. These organs all work together to convert food from its raw form into nutrients the body can use, while processing and disposing of the remaining waste materials. Purpose of the circulatory system The circulatory system is responsible for transporting blood with oxygen (O 2 ) from the lungs to cells and then transporting blood with carbon dioxide (CO 2 ) back to the lungs. fat is broken down into. This is the main muscle used for breathing.Visit this animation and watch how the ribcage changes shape and size during inhalation and exhalation Three distinct processes occur in the respiratory system:People often confuse respiration with breathing.

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These tubes divide even further into smaller and smaller tubes that connect with the tiny air bags (alveoli) of the lungs.The main organs of the respiratory system are the lungs. The circulatory and respiratory system interactions form the basis for supporting life in higher animals. These processes are:Teachers may want to use this opportunity to discuss the topic of drug abuse. You can do this by getting large sheets of recycled paper and tracing around one of the learners. We use this information to present the correct curriculum and

When it contracts, it moves downwards and your lungs fill with air. List at least 3. Can you think of reasons why this is?The muscles in the uterus are some of the strongest in the human body.

All Siyavula textbook content made available on this site is released under the terms of a The circulatory system regulates internal body conditions by transporting endocrine hormones to and from targeted organs.

Access all educational video only on Edubull. They show the direction (flow) by using arrows.

The second part of the nervous system within our bodies is the peripheral nervous system.

Several systems in the human body work together to help keep it functioning normally 1 2.

[3 marks] Babies who have diarrhoea lose large quantities of undigested nutrients and water in this way.

[3 marks] Muscles contract and relax to move the bones at the joints and allow for locomotion. There is a reason why we use the phrase "in the blink of an eye" to mean very fast!Bones provide support and help to form the shape of the body.

Carbon dioxide and other waste products, which are expelled from your body, are also exchanged via your capillaries. the circulatory system transfers food and oxygen through the blood to the kidneys, kidneys filter waste from blood.

[2 marks] Bones are an attachment place for muscles and provide protection and support.Drugs and alcohol have various negative effects on the body. "Peripheral" means on the outside. When it relaxes again it moves upwards and forces the air out of your lungs. Kidney stones can have a detrimental effect on the urinary system because they can lodge themselves in the urinary tract, blocking the flow of urine and causing pain. Excretion is when the body gets rid of metabolic waste formed from chemical reactions taking place in the body.Have a look at the following diagram which gives an overview of the different parts making up the digestive system.Digestion starts in the mouth as food is chewed and mixed with saliva.

There are different areas in the brain that have different functions. These systems are the skeletal, muscular, digestive, respiratory, circulatory, urinary, endocrine, lymphatic, immune, reproductive and the nervous 2.When something goes wrong in one system, it most likely will affect another system. These may include any of the following among others: Your kidneys produce urine which is a combination of excess water and waste products.There are two ureters (thin tubes) which connect each kidney with the bladder and carry the urine from the kidney to the bladder.The bladder is a balloon-like organ that collects the urine before excreting it during urination.The urethra is a tube that connects the bladder to the outside of the human body through which the urine is excreted.Your kidneys filter about 125 ml of blood every minute!


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