grinds and recieves food as it first enters the body
pharnyx
the first region in the foregut which is heavily muscled to help with swallowing
esophagus
swallows food and dumps it into the crop
salivary gland
secretes fluid to lubricate food as it passes out of the pharnyx and down the esophagus and into the crop. Secretes some digestive fluid
crop
stores food while midgut enzymes are allowed to enter through proventriculus to digest the food
proventriculus
acts as a valve between crop and midgut. it often contains heavy teeth for grinding food
mid gut
secretes digestive enzymes and the peritrophic membrane. it absorbs nutrients from food broken down by digestive enzymes
gastric caeca
fingerlike pouches off midgut they are known to house symbiotic bacteria
malphigian tubules
filters harmful substances and nitrogenous waste from hemolymph.
peritrophic membrane
membrane secreted by midgut cells. protects the cells of the mid and hind gut. encloses food but is permable to enzymes and allows digestive products to leave and be further digested or absorbed by midgut cells
ileum
first part of the hind gut, larger than the colon
colon
narrow portion of the hindgut
rectum
posterior part of hindgut. dehydrates wastes and compresses it into pellets