Human System
Respiratory sys
Digestive sys
Circulatory
Muscular sys
Allows body to exchange gases with surrounding air, taking in oxygen that is needed respiration to take place and removing carbon dioxide that is produced during respiration
TRANSPORT oxygen. digested food, water and mineral salts to all parts of our body and trasnports carbon dioxide and other waste materials for removal
Skeletal sys
works with skeletal sys to allow us to move
Supports our body and gives our body its shape
Protects our
vital internal organs
Works together with the muscular sys to allow us to move
Breaks food down into simpler substances and
absorb them into the bloodstream
Mouth
Skull protects our brain
Ribcage protects our lungs and heart
Produce digestive juices (saliva) to digest food
Teeth in the mouth cuts food into smaller pieces as you chew, to make swallowing easier and increasing the food's surface area that is in contact with digestive juices, allowing the digestive juices to act on and break the food down into simpler substances at a greater rate
Gullet
Gullet is made of muscles that pushes food down
from mouth into stomach
Stomach
Produces digestive juices to digest food
Churns and grind the food into semi-liq state
Small
Intestine
Produces digestive juices to fully digest food
Digestion ends in small intestine
Absorb the fully digested food into bloodstream through its walls
Large
Intestine
Absorbs water and mineral salts from undigested food
Digestion takes place in Mouth, Stomach, Small Intestine
NO digestion takes in Gullet and Large intestine
Includes Nose, Windpipe, Lungs
Includes Heart, Blood vessels carrying blood
Includes Skull, Rib cage, Backbone, Other bones
we can control muscles in our arms
but not muscles of our heart
Tongue rolls food into a ball so that it can be swallowed easily
A muscular bag that holds food for digestion (a few hours)
Partially digested food from stomach enters small intestine
Undigested food goes into the large intestine