Histology Midterm Flashcards
Leydig cells which produce a lot of steroid hormones will have an abundant amount of
smooth ER
Muscle cells that need a lot of energy to contract will have an abundant amount of
mitochondria
increase of cells in mitosis can indicate
cancer
hematoxylin stains acidic structures what color
blue
Eosin stain stains basic structures what color
pink/red
What color will the nucleus be in an H&E stain
blue/purple
what color to acidic structures stain
blue
what color do basic structures stain
pink
what does the rough ER do in the cell
synthesize protein
what does the smooth ER do
synthesize hormones and phospholipids
what are the purpose of lysosomes
intracellular digestion
free ribosomes, microtubules are examples of
non membranous organelles
membranous organelles include
mitochondria, nucleus, Golgi etc
what are examples of inclusions
nutrients, lipids, myelin (color)
putting tissue in formalin to preserve is called…
fixation
the dehydration of tissue with ethanol for histology is called what
processing/dehydration
what are the steps for preparing tissue
tissue collection, fixation, processing, embedding, sectioning, and staining
metabolically inactive DNA
heterochromatin
metabolically active DNA
Euchromatin
where do many tumors arise from
epithelium tissue
what kind of epithelium is located on the luminal side of blood vessels
endothelium
what kind of epithelium lines the outside of organs
mesothelium
where is Cillia present
respiratory tract
what do goblet cells secrete
mucus
where is pseudo stratified epithelium found
respiratory tract
what is the function of microvilli and where is it located
increase surface area and absorption and found in intestines
what is the function and location of cillia
to move particles or liquid located in respiratory system
where is transitional epithelium located
urinary tract
what is the purpose of tight junctions
to keep things out
what is the purpose of the adhering belt
to hold cells together
what is the purpose of gap junctions
communication
