Epithelium Flashcards
What is the function of the basement membrane
forms a semipermeable filter for substances reaching epithelial
_______ is also known as basal lamina
Basement membrane
What is a noncellular, a thin extra cellular sheet of macromolecules (protein-polysaccharide rich)
Basement membrane
What is the physiologic function of the microvilli
Increases the surface area for absorption
When looking for the microvilli under a microscope, where would you find them densely packed?
Brush Border
Describe the microvilli
apical cytoplasmic projections
Define Cilia
long, highly motile apical structures
What special cell surface modification is seen at the apical surface of the epithelium in the trachea (respiratory tract)
Cilia
What is the physiologic function of cilia
Moving fluid and particles in the respiratory tract
What special cell surface modification is longer than microvili?
Cilia
What type of epithelium can be seen in the ureter?
Transitional Epithelium
What is the function of Transitional Epithelium?
Allows for distension which alters the cell shape
Transitional Epithelium can be classified as _______
Stratified
What type of epithelium cells are described as dome-like umbrella cells
Transitional Epithelium
What type of epithelium are found lining the lower urinary tract
Transitional Epithelium
What type of specialized classifications of simple squamous epithelium lines the walls and covers the serosal surfaces (free outer surfaces) of the closed cavities of the body
Mesothelium
Where can Mesothelium be found in the body?
abdomina
pericardial
pleural cavities
What type of exocrine gland secretion accumulate product as they mature and enlarge culminate in rupture of cell?
Holocrine Secretion
What type of exocrine gland secretion releases product into sebaceous glands of hair follicles
Holocrine Secretion
Is epithelium avascular or vascular
Avascular
