Epitheial Tissue

Question 1

Simple Squamous Epithlieum

Answer 1

Locations: Kidney Glomeruli, renal corpuscles, Air Sacs of lungs, lining of heart, blood vessels, and lymphatic vessels, and serosae
Functions: Diffusion, Filtration, Secretion (air sac gas exchange, capillary endothelium diffusion)

Question 2

Simple Cuboidal Epithelium

Answer 2

Functions: Secretion and Absorption (Active)
Locations: Kidney Tubules, ducts, secretory portions of small glands, ovary surface

Question 3

Simple Columnar Epithelium

Answer 3

Function: Absorption, secretion of mucus, enzymes, and other substances (ciliated type propels mucus or reproductive sells via cilliary action)
Locations: (Non-ciliated): Lines digestive tract, gallbladder, and excretory ducts of some glands
(Ciliated): Lines bronchi, uterine tubes, some regions of uterus
Contains: Goblet cells, microvilli, cilia

Question 4

Psuedostratified Columnar Epithelium

Answer 4

Function: Secrete substances (mucus), propulsion of mucus by ciliary action
Location: (Ciliated): Trachea, upper respiratory tract
(Non-ciliated): Male sperm carrying ducts, ducts of large glands
Characteristics: Goblet cells, cilia

Question 5

Stratified Squamous Epithelium

Answer 5

Function: Protects underlying tissues in areas subjected to abrasion
Location: (Nonkeratinized): Moist linings of the esophagus, mouth, and vagina
(Keratinized): Epidermis (dry)

Question 6

Transitional Epithelium

Answer 6

Functions: Distends readily, permits stored urine
Location: Lines the ureters, bladder, proximal urethra

Question 7

Stratified Cuboidal Epithelium

Answer 7

Functions: protection, secretion, absorption
Locations: ducts of some larger glands (sweat, and mammary)

Question 8

Stratified Columnar Epithelium

Answer 8

Functions: Protection
Locations: Pharynx, male urethra, lining some glandular ducts, anus, mammary/salivary gland