Transcript lesson-2-gross-anatomy-of-the-digestive-system

Lesson Starter
Teeth play an important role in DIGESTION;
use your own words to describe the role of
our teeth.
Importance of teeth in digestion
We use our TEETH to grind down food, making it easier to
swallow.
This is a PHYSICAL CHANGE – although our food does not
look the same as when we ate it, it is still what we put in.
Learning Intention
•To be able to explain the journey food
takes through the digestive system.
•To be able to label the digestive
system.
•To describe the role of the organs in
the digestive system.
How do we get
from this…
…to this?
The Digestive
System
small intestine
oesophagus
(gullet, or
food pipe)
stomach
large intestine
anus
Step 1: Inside the Mouth
oSalivary glands
oProduces saliva
oEnzymes
oLubrication
Step 2: Swallowing
oOesophagus
oTube to stomach
oMuscle
Step 3: Inside the stomach
oStomach- acid
o Liver- bile
oGall bladder- store
bile
Step 3: Inside the stomach
oStomach- acid
o Liver- bile -fat
oGall bladder- store
bile
oPancreas- enzymes,
carbs, fat, protein
Step 4: Intestines
oSmall intestine
o23.3ft long (approx)
oAbsorbs nutrients
Step 5: Intestines
oLarge intestine
oColon- water and salt
o Rectum- signals brain
for bowel movement
Step 6: Out of the body
oAnus
oWaste (faeces/poop)
Tweet your answers #Digestion
What do you think is the most important
organ in the digestive system and why?
Include the organs function and why you think it is the most important