Digestive System 1
Where does digestion begin?
The mouth
What does the heart do?
Pumps blood around the body.
What type of digestion is chewing?
Mechanical digestion
How many chambers are in the heart?
4
What is the name of the tube that carries food to the stomach?
Oesophagus
What are the parts of the circulatory system?
The heart and blood vessels.
Which chambers are at the top? Atria or ventricles?
Atria
Muscular contractions push food down the oesophagus. What is this called?
Peristalsis
What do arteries do?
Carry blood away from the heart.
What does the liver produce and secrete?
Bile
List the chambers in the heart.
Right atrium, left atrium, right ventricle, left ventricle
Gastric juices in the stomach break food down into a semi-liquid mixture. What is this mixture called?
Chyme
What 3 things does the circulatory system deliver around the body?
oxygen, nutrients and hormones
What does the pancreas produce?
Enzymes that help digest food.
Which type of blood vessels have valves to prevent backflow of blood?
Veins
What is an enzyme?
A protein that speeds up chemical reactions in the body
What is the name of the artery that carries blood from the heart to the rest of the circulatory system?
The aorta.
What is the flap that covers the trachea during swallowing so that food does not enter the lungs?
epiglottis
What is the medical term for the condition where there is a blockage in one of the coronary arteries supplying blood to the heart muscle?
Coronary artery disease (CAD) or coronary heart disease (CHD).