What is an epithelium? Enumerate the characteristic features of different epithelia.

Explanation

The cellular covering of internal and external surfaces of vering of internal and external surfaces of the body including the lining of vessels and other small cavities.
Characteristic features of different epithelia.
The functions of epithelium includes protection, absorption, filtration, excretion, secretion. and sensory reception.
The squamous epithelium found in the kidney glomeruli, lining the heart, blood vessels involved in functions like forming a diffusion boundary and filtration
(iii) The cuboidal epithelium found in the kidney tubules, secretory port bules secretory portions are mainly involved in secretion and absorption.
(iv) The columnar epithelium lining the digestive tract includes absorption, secretion of mucus, enzymes and other substances.
(v) The main function of compound epithelium is to provide protection against chemical and mechanical