Types of Epithelial Tissue

Question 1

Single layer of flat cells; allows for diffusion and filtration (e.g., in the lungs and blood vessels).

Answer 1

Simple Squamous

Question 2

Single layer of cube-shaped cells; involved in secretion and absorption (e.g., in glands and kidney tubules).

Answer 2

Simple Cuboidal

Question 3

Single layer of tall, column-like cells with nuclei at the same level; specialized for absorption and secretion (e.g., lining of the stomach and intestines).

Answer 3

Simple Columnar

Question 4

Commonly seen in simple columnar epithelium that produces a lubricating mucus

Answer 4

Goblet cells

Question 5

Appears layered due to cell nuclei at varying heights, but is actually a single layer; involved in secretion and movement of mucus (e.g., respiratory tract).

Answer 5

Pseudostratified columnar

Question 6

Cells on top are squamous while those on basement are cuboidal or columnar. Multiple layers of flat cells; protects underlying tissues from abrasion (e.g., skin, mouth).

Answer 6

Stratified squamous

Question 7

Typically two layers of cube-like cells; involved in protection (e.g., ducts of sweat glands).

Answer 7

Stratified cuboidal

Question 8

Surface are columnar but basal vary. Rare, consists of multiple layers of columnar cells; involved in protection and secretion (e.g., male urethra).

Answer 8

Stratified columnar

Question 9

Multiple layers of cells that can stretch; lines the bladder and allows it to expand and contract.

Answer 9

Transitional

Question 10

Specialized epithelial cells that form glands.

Answer 10

Glandular epithelium

Question 11

Glandular epithelium. Ductless glands that secrete hormones directly into the bloodstream (e.g., thyroid gland).

Answer 11

Endocrine gland

Question 12

Glandular epithelium. Glands that secrete their products into ducts (e.g., sweat glands, salivary glands).

Answer 12

Exocrine gland