What is the function of digestive caeca in cockroach?

Answer 1

the alimentary canal of the cockroach is divided into 3 parts i.e. foregut, midgut and hindgut.the mouth opens to a small tubular pharynx leading to a narrow tubular passage called oesophagus. this opens to a sac like structure called crop which helps in storing food.the crop is followed by gizzard which helps in the function of grinding the food.a ring of 6-8 blind tubules called hepatic or gastric caecea which is present in the junction of foregut and midgut, which secretes digestive juice. at the junction of midgut and hindgut there are several thread like structures called malphigian tubules which helps in the removal of excretory product from haemolymph. the hind gut is differentiated into ileum, colon and rectum. the rectum at last opens out through anus.

Answer 2

Digestive system of cockroach is very easy. Roach mouth opens to esophogus, where saliva mix with food (oft excrement or other food waste / rot.] Then this mix saliva and food is pushed to crop of insect, but not digest it there. Next, from crop the food moves to gizzard which crush / process food before leading to stomach. After stomach, this reaches intestines; to do actual digestion making component molecules which roach's body may use.

These molecules pass direct to blood through intestine wall; then carried to rest of roach's body with circulatory system. Energy from these process be stored in fat bodies throughout roach.

Excess / non usable part of food (or bi-product of digestion) are passed to rear intestine, and then colon section to form "pellet" which then roach will excrete to remove through its anus.

I hope this helps, I cannot see a way to attach diagrams into answer itself so here is link to a good picture: http://www.entomology.umn.edu/cues/4015/morpology/de.jpg

Hope this will help you!

Answer 3

The crop on a cockroach holds food, the gastric cacea has enzymes that help digest food, and the gizzard grinds food before it goes to the stomach. The midgut absorbs nutrients, the ileum absorbs fats, and the colon eliminates waste.

Answer 4

The digestive system of a male cockroach includes a stomach for breaking down food. It also contains a small and large intestine.

Answer 5

they secrete gastric juices that will pour of flow into the stomach to aid in digestion