7.2 Flashcards
Digestive system is made up of organs.
Digestion is the process by which…
Food is broken down and absorbed into your blood for transport to your cells.
Physical digestion…
Is physically breaking down the food so it is easier to digest.
The main tool needed for physical digestion are the…
Teeth
We have 3 types of teeth…
Incisors, canines and molars.
Incisors…
Bite into food
Canines…
Tear the food
Molars…
Grind the food
We also have a large muscular organ known as …
A tongue in our mouths.
When we swallow a process known as…
Peristalsis occurs.
Peristalsis is…
The contraction and relaxation of muscles in the oesophagus as food is swallowed.
Chemical digestion is when…
Food is chemically broken down.
In the mouth (something) is made mainly of (something) and different types of (something).
Saliva, water, enzymes
Enzymes are…
Chemicals that can speed up a reaction
Where are nutrients absorbed…
The small intestine.
Inside the small intestine are little ridges known as…
Villi.
Villi can…
Increase the surface area that nutrients pass over.
