Day 3 Epithelial Tissue Flashcards
most cancers are what?
epithelial tissue cancers (85%)
CARCINOMAS
provide an example for squamous cell cancer?
squamous cell carcinoma
- squamous cell lung cancer
provide an example for Glandular cell cancer?
adenocarcinoma
-pancreatic adenocarcinoma
provide an example for transitional cell cancer?
Transitional cell cancer
urorethral cell cancer
what is a papanicolauo test?
a pap test is a collection and microscopic examination of epithelial cells scraped of apical layer of a tissue
in usual pap test they take non-keratinized stratified squamous cells from cervix
the objective is to detect cancerous chnges in non keratinized stratified squamous epithelium
Glandular epithelium:
Exocrine glands do what?
discharge secretions (enzymes mucins) on epithelial surface
Glandular epithelium:
what are 4 examples of exocrine glands?
serous glands (salivary amylase, pleural fluid)
mucous glands (mucous in saliva or respiratory tract
mixed glands
other (sebaceous
Can be unicellular or multicellular (sheet or pockets with duct to surface
Glandular epithelium:
Endocrine glands do what?
Also know as Ductless
Secrete hormones into extracellular fluid (usually blood) by exocytosis for transport to target area
example is tyroid and adrenal glands
what is an example of a simple tublar gland?
intestinal gland
what is an example of a simple coiled tubular?
merocrine sweat gland
what is an example of a simple branched tubular?
gastric glands
mucous glands of esophagus, tongue and duodenum
what is an example of a simple alveolar ?
not found in adult; a stage in development of simple branched glands
what is an example of a simple branched alveolar?
sebaceous (oil) gland
what is an example of a compound tubular gland?
mucous glands in mouth
bulbo-urethral glands in male reproductive system
testes
what is an example of a compound alveolar gland?
mammary gland
what is an example of a compound tubuloalveolar gland?
salivary glands
glands in respiratory passage
pancreas
what are three modes of exocrine gland excretion?
merocrine (secretory vesicles in salivary gland)
apocrine (breakdown and regrowth of mammary gland)
holocrine (in sebaceous gland cell division replace lost cells, cells produce secretion increasing size, cells burst releasing cytoplasmic contents )
Membranes: epithelia and connective tissue
Mucous membranes are where and do what?
line passageway that communicate with exterior protective and lubricated
digestive, respiratory, urinary, reproductive paths
Membranes: epithelia and connective tissue
serous membranes are where and do what?
line the ventral body cavities
pericardium, pleura, peritoneum
Membranes: epithelia and connective tissue
the cutaneous membrane is where and does what?
forms the skin
also called in integumentary system
protection
Membranes: epithelia and connective tissue
synovial membrane is where?
lines synovial joint cavities (produces synovial fluid)
what are the 4 membranes?
mucous
serous
cutaneous
synovial
