GENERAL HISTOLOGY

Detailed explanation-1: -Squamous.-nonkeratinized (covers the mucosa)-keratinized (skin) Cuboidal (lines excretory ducts of glands) Columnar (conjunctiva of the eyelids) Transitional (urinary tract)

Detailed explanation-2: -Stratified squamous epithelium consists of a single basal layer containing stem cells, 2–3 layers of proliferative basaloid cells in the suprabasal region, and larger keratinized cells toward the surface.

Detailed explanation-3: -Stratified squamous epithelium is the most common type of stratified epithelium in the human body. The apical cells are squamous, whereas the basal layer contains either columnar or cuboidal cells.

Detailed explanation-4: -The epidermis is a cornified stratified squamous epithelium. It consists mainly of keratinocytes which multiply in the basal layer of the epithelium, and then leave this layer toward the outer surface. Along the way they undergo the process of keratinization before its dead.

Detailed explanation-5: -Esophageal squamous epithelium is distinguished from the underlying mucosal lamina propria by the basal membrane, and is composed of three layers: a basal cell layer in contact with the basal membrane, a parabasal cell layer, and a superficial layer.