Digestive Organs
Where does digestion begin?
(Mouth)
Juice present in saliva.
(Saliva/Salivary amylase)
Organ used for breathing.
(Lungs)
Organ used by fish to breathe.
(Gills)
Breaking food into simpler substances.
(Digestion)
Tube connecting mouth and stomach.
(Oesophagus)
Juice that emulsifies fats.
(Bile)
Tube carrying air to lungs.
(Trachea)
Special structure in birds that helps breathing.
(Air sacs)
Taking air into the lungs.
(Inhalation)
Organ where food is churned.
(Stomach)
Organ producing pancreatic juice.
(Pancreas)
Tiny air sacs for gas exchange.
(Alveoli)
Gas absorbed by fish from water.
(Oxygen)
Releasing air from the lungs.
(Exhalation)
Organ where most nutrients are absorbed.
(Small intestine)
Finger-like projections in the small intestine.
(Villi)
Muscle below the lungs.
(Diaphragm)
What does cow chew?
Cud
Movement of oxygen into blood and carbon dioxide out.
(Gas exchange)
Largest gland in the body.
(Liver)
Process of breaking food into simple substances.
(Digestion)
Two branches of the trachea.
(Bronchi)
Process of chewing cud.
(Rumination)
Energy-releasing process inside cells.
(Respiration)