histology
study of tissues
primary tissue classes
epithelial, connective, nervous, muscular
8 types of epithelial tissue (2 broad, 4 in each)
Simple=squamous, cuboidal, columnar, pseudostratified
Stratified=rare, transitional, keratinized, cuboidal
connective tissue 5 classification
fibrous, adipose, cartilage, bone, fluid
3 types of muscle tissue
skeletal, cardiac, smooth
intercellular junctions
all cells anchored to each other or their matrix by these junctions
three kinds of intercellular junctions
tight, desosomes, gap
tight junctions
zipper like, encircles an epithelial cell, tight to prevent fluid seepage. found in stomach and urinary tracts
desosomes
snap-like, holds cells together, enables cell to resist mechanical stress. found in skin, heart, cervix
gap junctions
pore joining, allows fast communication, found in neurons, smooth and cardiac muscle
glands
exocrine, endocrine
exocrine
secretes into a duct
endocrine
secretes into the blood
types of exocrine glands
simple, compound, shape of gland
gland classified by types of secretion
serous, mucous, mixed
gland classified by method of secretion
merocrine, apocrine, holocrine