Question

which are the glands that join to small intestine in herbivores​

Answer 1

Answer:

Animals obtain their nutrition from the consumption of other organisms. Depending on their diet, animals can be classified into the following categories: plant eaters (herbivores), meat eaters (carnivores), and those that eat both plants and animals (omnivores). The nutrients and macromolecules present in food are not immediately accessible to the cells. There are a number of processes that modify food within the animal body in order to make the nutrients and organic molecules accessible for cellular function. 

Answer 2

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Intestine:

• Spiral intestine: Lampreys and fish (except more evolved Teleosts); it is  a longitudinal fold with spiral arrangement: spiral valve.

• Elongated and contoured intestine; Teleosts and tetrapods; is more accused in  herbivores than carnivores. In birds and mammals they have microvilli  intestinal and cecum (2 in birds and 1 in mammals).  Intestinal derivatives (glands): They come from folds of the foregut.  They function as exocrine (intestinal digestion) and endocrine (metabolism) glands  carbohydrate).

• Liver: It comes from a ventral evagination. Has an external discharge:  (gall gland or gallbladder), bile which is a digestive juice for the digestion of  fats, hematopoietic and excretory activity. And an internal secretion:  tyrosine, insulin and metabolic substances.

• Pancreas: It comes from a dorsal and two lateral evagination. Has a region  exocrine (pancreatic juice) and an endocrine region (islets of Langerhans).