digestion Flashcards
stages of digestion
ingestion - taking food in the body
digestion - breaking down food into small chemical units, happens in the stomach and small intestine
absorption - when the chemical units are passed into blood and are carried to the liver happens in small inestine
metabolism - where chemical units are converted into energy
excrection - removal of any indigestible material
dog and cat
monogastric - short digestive tract
digestive system -
oral cavity
pharynx
oesphogus
stomach
small intestine (Duodenum, jejunum, ileum)
large intestine (caecum, colon, rectum, anus)
oral cavity
lips, pharynx, cheek to cheek
separate regions
buccal cavity - inside of the cheek
central cavity - hard palate dorsally, tongue ventrally, teeth laterally
oral cavity
prehension - pick up food with lips and tongue
break food up - via mastication
lubrication - easier to swallow
how does sweating cool us down?
vasodilation causes warm blood to move to the surface of the skin which allows it to be cooled down, when sweat evaporates, it cools down the surface of the skin which lowers temperature, panting icreases resp rate which allows more cool air to enter and cooling down the body