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Histology Exam 1 - Lab Notes
Histology slide notes
61
Histology
Professional
09/18/2011

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Term
fibrocytes
Definition
produce connective tissue
Term
fibroblasts
Definition
maintain connective tissue
Term
mesenchymal cells
Definition
stem cells for all connective tissue (except blood)
Term
eosinophilia
Definition
stained pink, basic (cytoplasm, elastin, bone, RBCs, and muscle)
Term
basophilia
Definition
stained blue, acidic (nucleus, ER, ribosomes, DNA, and RNA)
Term
acinus
Definition
pie shaped segment of a pancreatic cell
Term
silver stain
Definition
used to see fibers (reticulate fibers of the lymph node); less cellular detail than H&E stains
Term
intercollated discs
Definition
connect two cardiac cells
Term
mallory stain
Definition
shows more cellular detail
Term
microvilli
Definition
line villi of lumen; need electron micrograph to see
Term
serous demilunes
Definition
half moon shaped cells lining mucous/serous ducts
Term
adenomere
Definition
FUNCTIONAL part of duct; found among parenchymal cells
Term
stroma
Definition
support structure of organ; NOT FUNCTIONAL
Term
myoepithelial cells
Definition
contract adenomeres
Term
melanocytes and melanophages
Definition
pigment cells; appear as orange spots on histology slides
Term
langerhans cells
Definition
antigen presenting cells within the epidermis
Term
merkel cells
Definition
cells within the epodermis
Term
external root sheath
Definition
surrounds hair follicle
Term
venus sinisoid
Definition
vascular area surrounding the external root sheaths of tactile hairs
Term
coronary epidermis
Definition
stratified squamous epithelium that makes up the hoof wall
Term
stratum basal of hoof
Definition
produces keratin
Term
exocrine gland
Definition
forms a duct
Term
endocrine gland
Definition
within the epithelium
Term
endothelium
Definition
epithelium that surrounds blood vessels
Term
mesothelium
Definition
epithelium that lines the outside of organs; "blue lines with bulging nuclei"
Term
goblet cells
Definition
look like clear globes of mucous; cells present in the ciliated simple columnar epithelium lining the trachea
Term
esophagus lining
Definition
stratified squamous epithelium
Term
lining of the duodenum
Definition
simple columnar epithelium
Term
glands present in skin
Definition
apocrine, merocrine, holocrine, and sebacious
Term
holocrine
Definition
method of secretion of sebacious gland
Term
serous
Definition
method of secretion of apocrine glands
Term
epithelium lining the ureter
Definition
urothelium - translational epithelium (stratified cuboidal epithelium)
Term
mucus adenomere
Definition
BLUE - basophilic; secreting mucus
Term
serous adenomere
Definition
BRIGHT PINK - eosinophilic; filled with serous fluid
Term
mixed adenomere
Definition
mixed salivary gland; light pink in color; mucus filled
Term
secretory duct
Definition
striated - mitochondria required for energy to secrete
Term
excretory duct
Definition
passive secretion
Term
isogenous nests
Definition
indicates interstitial growth of hyaline cartilage
Term
lacuni
Definition
spaces within cartilage containing chondrocytes
Term
fibrocartilage
Definition
found in intervertebral dics; has no perichondrium; nuclei are in lacunae
Term
dermal papillae
Definition
indentation at the base of hair follicles where vessels and nerves enter
Term
dense connective tissue
Definition
right under epithelium; more extracellular fibers; less nuclei
Term
loose connective tissue
Definition
farther from epithelium; less extracellular fibers; more nuclei
Term
stratum externum
Definition
outer wall of hoof
Term
stratum medium
Definition
epidermis of hoof; beneath stratum externum; contains tubular horns
Term
tubular horns
Definition
project into the stratum medium of the hoof to provide strength
Term
corium
Definition
dermis of hoof
Term
ceniculae
Definition
contain cell processes of osteocytes
Term
osteoid
Definition
new, non-mineralized bone matrix
Term
growth plate
Definition
hyaline cartilage
Term
meniscus
Definition
made of fibrocartilage
Term
intermembranous ossification
Definition
growth of non weight bearing bones
Term
endochondrial ossification
Definition
growth of weight bearing bones
Term
epimycium
Definition
outer covering of bone
Term
perimycium
Definition
lining of "marrow cavity" of bone
Term
endomycium
Definition
connective tissue filling internal cavity of bone
Term
inner circular layer
Definition
deep smooth muscle layer surrounding lumen of duodenum
Term
outer longitudinal layer
Definition
superficial smooth muscle layer surrounding inner circular layer and lumen of duodenum
Term
purkinje fiber
Definition
increases conduction of cardiac muscle
Term
apical
Definition
farther from lumen
Term
basal
Definition
closer to lumen
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