What are crypts?

Which of the following sttements regarding small intesitine are incorrect? (i) Throughout the small intestine, there are crypts of lieberkuhn at the base of the villi. (ii) In douodenum, there are, in addition, small rounded peptic glands. (iii) The small intestine is strongly self-rotective, by means of a copious production of mucus and a mechanism of the rapid replacement of cells damaged by contact with food and digestive juices. (iv) Each villus is richly supplied with blood capillaries only

What are twins ? What are their types ?

What is Lens ? What are types of lenses ?

What are porins? What role do they play in diffusion?

What are root stocks ? What are its function?

What is cryptorchism? What is the solution for this?

What are neurons? What are their functions.

What are chordae tendinae and what is their function?

What is Calculus ? What are the types of Calculus ?