Intro to tissue Flashcards
Epithelial Tissue
line hollow organs
Muscle tissue
Contractile
Nerve tissue
communication
connective tissue
structural strength and defense
Microscope
- thin tissue slices are transparent
- cant always see cell boundaries
- plane of section affects appearance
hemotaxylin
- basic dye
- stains acids purple
- DNA and RNA
Eosin
- acidic dye
- stains bases pink
- proteins
Simple squamous epithelium
line blood vessels (endothelium)
Simple cuboidal epithelium
thyroid follicles
Simple columnar epithelium
gall bladder
small intestine
ducts in a gland
keratinized stratified squamous epithelium
skin side of lip
non-keratinized stratified squamous epithelium
oral surface of lip
esophagus
Goblet cells
mucous producing
stratified cuboidal epithelium
rare
mammary duct
stratified columnar
rare
sublingual duct
psuedostratified epithelium
trachea (respiratory tract)
all cells touch basal lamina
transitional epithelium
urinary bladder
p63
changes cells from simple to stratified
affects the appearance of basal cells
protective feature
skeletal muscle
multi-nucleated
peripheral nuclei
look like purple cigars
cardiac muscle
smaller
branching
1-2 central nuclei
smooth muscle
small
tapering ends
1 central nuclei - stain pale
Neuron nucleus
large and pale with dark nucleolus
neuron axon
no rNA
neuron cell bodies
large with lots of cytoplasmic RNA
