MICROANATOMY

Detailed explanation-1: -The epithelium of the intestine completely self-renews within ∼5 days. By contrast, interfollicular epidermis takes ∼4 weeks to renew, whereas the lung epithelium can take as long as 6 months to be replaced. In addition, some epithelia present a cyclic mode of tissue homeostasis.

Detailed explanation-2: -The high regenerative capacity of this epithelium, with stem cells able to self-renew constantly throughout life, makes this tissue ideal for regenerative medicine approaches. At the same time, however, the continuous proliferation of intestinal stem cells accumulates mutations that can promote cancer growth.

Detailed explanation-3: -Epithelial tissue has great regeneration power because when epithelia are injured they regenerate more rapidly than other tissues and thus facilitate rapid healing of wounds.

Detailed explanation-4: -Answer and Explanation: Because of its high mitotic rate, epithelial tissue has the ability to heal itself so rapidly. The lower layers of epithelial tissue has a high amount of stem cells and these stem cells divide constantly so that they can replace the cells that are above them.