Normal histology of various organs of shell fish (shrimp)

NORMAL HISTOLOGY OF VARIOUS ORGANS OF SHELLFISH (SHRIMP) 
  • The oral region is lined by a simple cylindrical epithelium overlaid by cuticle. The epithelial cell nuclei are at different heights giving a pseudo-stratified aspect. Tegumental glands are scattered throughout the oral region and their cells stains metacromatically with toluidine blue.

Histology_of_shrimp

Oral region
(Longitudinal section of the oral region.
c: cuticle; e: epithelium; m: muscle;
ma: mandible; tg: tegumental gland;
V: ventral. H&E. Scale bar: 25µm)

  • Midgut cells have central nuclei, small subapical vacuoles and a well developed brush border; some of them have a basophilic cytoplasm and are secreting actively small undifferentiated cells can be observed on the basal lamina.

Midgut-Cross_section Midgut-Cross_section

Midgut
(Cross section of the midgut showing the cylindrical epithelium and the basal cells (arrow). bl: basal lamina; l: lumen;
s: secretion)

Midgut epithelium
(The midgut epithelium. bl: basal lamina;
e: epithelium; s: secretion. H&E.
Scale bar: 25µm)

Sousa, L., 2006.Morphology and histology of P. argentinus (Crustacea, Decapoda, Caridea) digestive tract, Biocell 30(2).


Last modified: Saturday, 17 September 2011, 6:48 AM