Quiz 2 - Types of Epithelial tissues Flashcards
simple squamous
very delicate, reduces friction, absorbs and secretes materials (locations: line body cavities, heart, blood vessels, alveoli of lungs)
Stratified squamous
in areas of severe mechanical stress (exposed body surfaces)
keratinized
surface of skin
non-keratinized
lines mouth, esophagus, anus, vagina
simple cuboidal
performs secretions and absorptions (locations: thyroid gland, ducts, kidney tubules)
simple columnar
secretion, absorption, protection (locations: lining of stomach, intestines, uterine tubes)
pseudostratified columnar
nucleus situated at different levels (locations: nasal cavity, trace, bronchi)
transitional
can stretch extensively, consists of many layers of irregularly shaped cells (locations: urinary bladder, ureter)
glandular epithelium
produce and secrete materials/fluids
types of secretions from glandular epithelium
endocrine glands and exocrine glands
endocrine glands
secretions enter into the blood or lymph
exocrine glands
secretions travel through ducts to the epithelial surface
types of exocrine glands
serous, mucous, mixed
serous
secrete watery fluid rich in enzymes
mucous
secretes glycoporteins (mucins) that absorb water to produce mucus