Body Flashcards
What is a tissue?
Similar cells working together
What is an organ system?
Organs working together
What does the digestive system do?
Breaks down food
What does are heart do?
Pumps blood
What do arteries do?
Carry blood away from the heart
What do veins do?
Returns blood to the heart
What does your mouth do?
Chews food
Adds saliva to lubricate food
Contains enzymes to break down starch
What does the gullet do?
Food passes along it after it is swallowed.
Muscular contractions squeeze food along
What does your stomach do?
Stores food
Hydrochlic acid kills bacteria
Contains enzymes called protease that break down proteins
What does your small intestine do?
High alkali conditions
small molecules like glucose absorbed into blood stream
What does your large intestine do?
Water is absorbed back into blood stream
Fibre swells up and keeps waste products moving along
What does your ainus do?
Waste material is stored until it goes out your body
What are all living things made of?
Cells
