List of abbreviations
of micros-
specialist terms
explained in
English +

Every attempt was made to provide correct information and labelling, however any liability for eventual errors or incompleteness is rejected!

dieser Seite

Dr. med.
H. Jastrow

of use
Junctional complex with desmosomes between two epithelial cells of the ileum (rat)
(for unlabelled original image click here, please!)

Af = actin filaments (run from inside the microvilli [Mv] into the terminal web [Rt] and anchor the microvilli);
Af* = actin filaments which are attached to the apical cell membrane of microvilli;
C = cytoplasm (cellular fluid); Cjc = Complexus junctarum cellularum (junctional complex);
Clv = Vesiculum clathrinum (clathrin-coated vesicle, i.e. endocytotic vesicle);
Cri = crista mitochondrialis (partly degeneratively widened);
CMV = Corpusculum multivesiculare (multivesicular body); D = Junctio intercellularis digitiformis (interdigitations);
Gx = glycocalyx on top of the cell membrane; IF = intermediate filaments; Lyp = Lysosomae (lysosomes); Lys = heterolysosome;
Ma = Macula adhaerentes (spot desmosomes); Mi = mitochondria (crista-type);
Mm = Membrana mitochondrialis (mitochondrial membrane); Mv = microvilli; P = Plasmalemma (cell membrane);
Pr = polyribosomes (the translation of genetic information takes place here);
Rt = Rete terminale (terminal web consists of actin-, spectrin- and further filaments; is anchored to the cell membrane at Za);
Spi = Spatium intercellulare (intercellular space); Za = Zonula adhaerens (adhaesive stripe = intermediate junction);
Zo = Zonula occludens (tight junction, very close apposition of cell membranes due to interlinked membane proteins);
+ = intercellular space with a "glueing substance" in the region of a spot desmosome [Ma] which consists
of the transmembrane linking proteins desmoglein + desmocollin;
# = cytoplasmic plaque of a Ma (consists of placoglobin and desmoplakines).

A junctional complex consits of a tight junction (Zonula occludens), an adhaesive stripe (Zonula adhaerens) and a spot desmosome (Macula adhaerens).
It is responsible for a stable connection between epithelial cells and allows only a limited amount of water and smallest ions to pass the intercellular space.

--> ileum; junctional complex, desmosome, epithelia
--> Electron microscopic atlas Overview
--> Homepage of the workshop

Page, image & copyright H. Jastrow.