Unit 4 Flashcards
What are epithelial tissues primarily responsible for?
Epithelial tissues are primarily responsible for covering body surfaces, lining cavities, and forming glands.
True or False: Epithelial tissues have a high degree of vascularity.
False: Epithelial tissues are avascular, meaning they lack blood vessels.
Fill in the blank: Epithelial tissues are classified based on the number of ______ and the shape of ______.
layers; cells
What are the two main types of epithelial tissues?
Simple and stratified epithelial tissues.
Which type of epithelial tissue has only one layer of cells?
Simple epithelium.
Name the three basic shapes of epithelial cells.
Squamous, cuboidal, and columnar.
True or False: Stratified epithelial tissues are more robust and provide more protection than simple epithelial tissues.
True.
What type of epithelial tissue is best suited for diffusion and filtration?
Simple squamous epithelium.
Multiple Choice: Which type of epithelial tissue is found in the lining of the respiratory tract? A) Stratified squamous B) Simple cuboidal C) Pseudostratified columnar
C) Pseudostratified columnar.
What is the primary function of glandular epithelium?
To produce and secrete substances such as hormones, enzymes, and mucus.
Fill in the blank: Epithelial tissues rest on a ______ membrane.
basement
Which type of epithelial tissue is specialized for absorption and secretion?
Simple columnar epithelium.
True or False: Transitional epithelium can stretch and is found in the urinary bladder.
True.
What are tight junctions in epithelial tissues?
Tight junctions are connections between adjacent epithelial cells that prevent leakage of materials.
Multiple Choice: Which of the following is NOT a function of epithelial tissue? A) Protection B) Absorption C) Blood circulation
C) Blood circulation.
What is the role of microvilli in epithelial cells?
Microvilli increase the surface area for absorption.
Fill in the blank: Ciliated epithelial cells help in the movement of ______.
mucus
What is the difference between exocrine and endocrine glands?
Exocrine glands secrete substances onto surfaces or into cavities, while endocrine glands secrete hormones directly into the bloodstream.
True or False: Epithelial tissues can regenerate quickly after injury.
True.
Name a location where simple cuboidal epithelium can be found.
In the kidney tubules.
What is the primary characteristic that distinguishes epithelial tissues from other tissue types?
Epithelial tissues have closely packed cells with minimal extracellular matrix.
Multiple Choice: Which type of epithelium is characterized by multiple layers of cells and is found in areas subject to abrasion? A) Simple squamous B) Stratified squamous C) Simple columnar
B) Stratified squamous.
What do ciliated epithelial cells do?
They help move particles or fluids across the epithelial surface.
Fill in the blank: The ______ layer of the basement membrane anchors the epithelial tissue to underlying connective tissue.
basal
True or False: Epithelial tissues can be innervated and can detect sensory stimuli.
True.
What is the primary function of stratified cuboidal epithelium?
To provide protection and secretion.
