What is the function of the circulatory system and what is it formed by?
Circulates blood and other substances in the body. It is formed by the heart, blood vessels and blood
What is the excretory system responsible for?
Removing liquid waste
What are two purposes of a food pyramid?
It helps us to decide which foods to eat and how much to have a healthy and balanced diet.
Where does blood leave the heart?
the right and left ventricle
What is the function of arteries?
They carry blood away from the heart towards all body tissue
What is the excretory system responsible for and what are the 4 parts?
for eliminating waste substances from the blood. Kidneys, ureters, bladder, urethra
What is the respiratory system responsible for?
Carrying out gas exchange
What is the circulatory system responsible for?
Transporting nutrients and gases
What are 4 groups of nutrients?
Proteins, vitamins and minerals, fats and carbohydrates
What is the function of capillaries?
The walls allow nutrients and oxygen to pass into the body cells and for carbon dioxide to leave the cells.
What is the function of red and white blood cells?
red: carry oxygen from the lungs to all body cells. white: protect us from germs.
What is the function of veins?
They carry blood back to the heart from all body tissues.
What are the 4 parts of the heart?
left atrium, right atrium, valves, right ventricle and left ventricle
True or False: In exhalation the diaphragm relaxes and rises, pushing air out of the lungs.
True
True or False: In inhalation the diaphragm relaxes and increases creating space for the lungs to contract
False. The diaphragm contracts and descends, creating space for the lungs to expand
Describe ingestion
begins in the mouth,teeth break down food&mix with saliva from salivary glands making bolus which is pushed into the pharynx&down the oesophagus to the stomach
What is the digestive system responsible for?
digestion of the food and obtaining nutrients
What are the 10 parts of the digestive system?
mouth, salivary glands, pharynx, oesophagus, stomach, large intestine, small intestine, liver, pancreas, anus
What is one example of each group of nutrients?
student answer
Where does absorption take place?
small intestines
describe elimination
takes place in the large intestine and faeces leave the body through the anus
Explain gas exchange
student answer
What are nutrients?
They are healthy substances obtained from food.
Where does gas exchange take place?
at the air sacs which are surrounded by the capillaries
Describe digestion
begins in stomach, gastric juices dissolve bolus making it chyme which passes into small intestines. intestinal juices and other juices turn chyme into chyle
What are 3 vital functions performed by living beings?
Nutrition, interaction and reproduction
Where does blood enter the heart?
the right and left atria
What is blood made up of?
Plasma, red and white blood cells, platelets
Your experience on this site will be improved by allowing cookies.