human mast cell in connective tissue Dr. Jastrow's electron microscopic atlas

Vocabulary
of micros-
copic
anatomy
specialist terms
explained in
English +
German

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

dieser Seite

Editor:
Dr. med.
H. Jastrow

Conditions
of use

human mast cell in connective tissue of human toe subcutis
(for unlabelled original image click here, please!)

C = cytoplasm (cellular fluid); Dp = Diaphragma pori (tiny diaphragm which covers a Pnu);
Ec = euchromatin; F = fibrocyte (resting cell of connective tissues); Hc = heterochromatin;
Ko = collagen fibres: Ko1 longitudinally running - Ko2 cross-sectioned; Mas = mast cell;
Me = membrane of secretory vesicles [Vs]; Mi = mitochondria (crista-type); Mn = Membrana nuclearis (nuclear membrane);
N = nucleus; Pnu = Porus nuclearis (nuclear membrane pore); Ps = Pseudpodia (pseudopods);
RER = rough endoplasmic reticulum; Va = Vacuole (lipid droplet); Vs = Vesiculae secreti (secretory vesicles containing the
biogen amines histamine and heparine which are released in case of inflammatory or allergic reactions.
The metachromatic vesicles are basophilic and are rapidly exocyted e.g., in case of allergic reactions when
immunglogulin E (IgE) which is released by plasma cells binds to receptors on the cell membrane of the mast cell.
* = spiral protein structures inside a mast cell vesicle [Vs] which are typical for human mast cell vesicles only.

--> detail of human mast cell vesicles
--> mast cells, free connective tissue cells, connective tissue, collagen fibres
--> Electron microscopic atlas Overview
--> Homepage of the workshop