BIOD 151 PORTAGE LEARNING Essential Human A & P Lab 7 Latest Review Exam Q & A

• Which type of epithelial tissue is primarily found in areas of high

abrasion and friction?

• Simple squamous
• Stratified squamous
• Simple cuboidal
• Pseudostratified columnar

Answer: B. Stratified squamous

Rationale: Stratified squamous epithelium is designed to protect

underlying tissues in areas of high abrasion.

• What is the primary function of simple columnar epithelium?
• Secretion and absorption
• Filtration
• Protection
• Gas exchange

Answer: A. Secretion and absorption

Rationale: Simple columnar epithelium lines organs like the digestive

tract where secretion and absorption are key functions.

• Which characteristic is unique to transitional epithelium?
• Ability to stretch
• Presence of cilia
• Single layer of cells
• Keratinization

Answer: A. Ability to stretch

Rationale: Transitional epithelium lines organs such as the bladder,

allowing them to expand and contract.

• Goblet cells are most commonly found in which type of epithelium?
• Stratified squamous
• Simple squamous
• Simple columnar
• Transitional

Answer: C. Simple columnar

Rationale: Goblet cells, which secrete mucus, are found within the

simple columnar epithelium lining the digestive and respiratory tracts.

• The presence of microvilli is most characteristic of which epithelial

tissue?

• Simple squamous
• Stratified squamous
• Simple columnar
• Pseudostratified columnar

Answer: C. Simple columnar

Rationale: Microvilli increase the surface area for absorption, a key

function of the simple columnar epithelium in the intestines.

• Which type of cell junction provides a waterproof seal between cells?
• Gap junctions
• Desmosomes
• Tight junctions
• Hemidesmosomes

Answer: C. Tight junctions

Rationale: Tight junctions form a barrier that prevents fluids from

moving between cells.

• In which location would you expect to find pseudostratified columnar

epithelium?

• Alveoli of the lungs
• Lining of the bladder
• Ducts of glands
• Trachea and upper respiratory tract

Answer: D. Trachea and upper respiratory tract

Rationale: Pseudostratified columnar epithelium, often ciliated, is found

in the respiratory tract where it helps trap and move particles out of the airways.

• What is the primary function of keratinized stratified squamous

epithelium?

• Absorption
• Secretion
• Protection from desiccation
• Filtration

Answer: C. Protection from desiccation

Rationale: Keratinized cells are found in the epidermis of the skin,

providing a waterproof barrier.

• Which feature distinguishes simple squamous epithelium from other

epithelial types?

• Multiple layers of cells
• Flat, scale-like cells
• Cube-shaped cells
• Column-like cells

Answer: B. Flat, scale-like cells

Rationale: Simple squamous epithelium consists of a single layer of flat

cells, facilitating diffusion and filtration.

• The basement membrane is found between which two layers?
• Epithelial and muscular
• Epithelial and connective
• Connective and muscular
• Muscular and neural

Answer: B. Epithelial and connective

Rationale: The basement membrane provides support and anchors the

epithelium to the underlying connective tissue.

• Which type of epithelium would be most affected by a reduction in

collagen production?

• Simple squamous
• Stratified squamous
• Simple columnar
• Transitional

Answer: B. Stratified squamous

Rationale: Collagen provides structural support, particularly in

connective tissue, which supports epithelial layers like the stratified squamous epithelium.

• How does the epithelial tissue contribute to the function of glands?
• By providing structural support
• By producing hormones
• By facilitating diffusion
• By secreting substances

Answer: D. By secreting substances