Histology review Flashcards
exam 2
ectoderm
external
“internal”
endoderm
internal
mesoderm- mesothelial cells
epithelia
avascular, polarized and express keratin
all nuclei are in a row
simple
wandering
lymphocytes
epidermis
SSKE
esophagus
SSNKE
SSNKE
all the way to the free surface, living, see the nuclei
SSKE has a
dark pigmented line
pseudostratified
all cell contact basal lamina, not all reach the surface
transitional
large surface cells and binucleate
urothelium
translitional
unicellular you will see
goblet cell
pancreas duct
multicellular compound
dermal sebaceous gland
multicellular simple
exocrine pancreas
merocrine
exocrine pancreas shows what type of cells?
simple columnar
decapitation secretion
apocrine
mammary gland: milk
apocrine e
dermis-sebaceuos gland
holocrine
serous secretion (4)
- watery secretion
- abundant rer
- round nucleus
- cell well stained
mucous (4)
- thick secretion
- clear cytoplasm
- flat nucleus
- cells poorly stained
zonula occludens and zonula adherens will always be present in
the plane of section
makes the dots beneath the terminal bar
zonula occludens and zonula adherens
tight junction
zonula occludens
transmembrane proteins (2)
- occludin
- claudin
transmembrane proteins are attached to
actin
calcium dependent intercellular junction
Zonula adherens
E-cadherin
Zonula adherens
zonula adherens is
continuous with actin cytoskeleton
zonula adherens job
transduce signals from adjacent cells
gap junction
communicating junction
communicating junctions job
facilitates transcellular movement of:
- metabolites
- 2nd messengers
- ion
basal lamina you only see in
EM
basal lamina is
discontinuous
reticular lamin
collagen III
basal lamina + reticular lamina
basement membrane
indigenous cells (5)
(1) fibroblast
(2) adipocytes
(3) mesenchymal cells
(4) osteogenic cell and derivatives
(5) chondrogenic cell and derivatives
Immigrant cells (7)
plasma cells mast cells macrophages basophil lymphocytes eosinophil neutrophils
indigenous cells key point
will always be in the CT
Most common cell in most CT
fibroblasts
have the capacity to differentiate into myofibroblasts but only in ______
fibroblasts in wound healing
collagen II is made by
chondrocytes
chicken-wire
white adipose tissue
brown adipose tissue has a lot of
capillaries
plasma cells are
differentiated B-lymphocytes
“cock-face”
Plasma face
round granules, one nuclei and the nuclei is smaller to cytoplasm
mast cells
basophils are found in the
blood
macrophages differentiates from
blood monocytes
they have phagocytic vacuoles, esosinophilic cytoplasm
macrophages
recirculate from blood to CT and back to blood
lymphocytes
lymphocytes are subsets of
B and T cells
small, dark nuclei, and little cytoplasm
lymphocytes