Types of Epithelial Tissue

Question 1

Simple Squamous

Answer 1

Blood vessels, Bowman’s capsule (kidney), alveolae
flat plate-like epithelial cells with elongated nucleus
allow diffusion of gases in alveolae, protection

Question 2

Simple cuboidal

Answer 2

Thyroid follicles, kidney tubules
a single layer of cube-shaped cells with central nucleus
Re-absorption in kidney tubules, protection

Question 3

Simple Columnar

Answer 3

Stomach and intestine lining, gall bladder
a single layer/long cells with nucleus located at the bottom of the cell Lubrication of gut, absorption in gall bladder

Question 4

Stratified Squamous

Answer 4

Keratinising – skin, non-keratinising – vagina/oesophagus – multiple layers of flat, plate-like cells with elongated nucleus
protection from abrasion and dehydration in skin

Question 5

Stratified Cuboidal

Answer 5

Sweat gland -> DUCT lining
multiple layers of cube-shaped cells with central nucleus
Transporting material through sweat glands

Question 6

Stratified Columnar

Answer 6

Large ducts and salivary gland lining
male urethra and vas deferens

Question 7

Pseudostratified Columnar

Answer 7

Upper respiratory tract + contains lot of cilia
Appears like multiple layers - actually single layer of cells
Protection + secretion of mucous