Dr. Larry Johnson Texas A&M University

Medical School Histology: Images of the Rat Intestine Please subscribe

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FOUR BASIC TYPES OF TISSUES IN THE BODY

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Epithelium Connective tissue

Muscular tissue Nervous tissue

Distinguishing features of epithelium

Always sit on a basement membrane, but come in a variety of configurations: classified on the basis of their shape and of the surface cells and whether one (simple) or more (stratified) layers of cells are stacked upon each other.

These cells are always attached to their neighbors by desmosomes, tight junctions, and gap junctions.

Epithelium

CELLS, CELLULAR STRUCTURES, AND GROUPS OF CELLS IN THE DIGESTIVE SYSTEM

LAMINA PROPRIA

CONNECTIVE TISSUE BETWEEN INTESTINAL GLANDS AND FORMS CORES OF INTESTINAL VILLI

CENTRAL LACTEAL

LARGE NUMBERS OF LYMPHOCYTES, PLASMA CELLS, EOSINOPHILS, MAST CELLS, AND MACROPHAGES

SMOOTH MUSCLE INNERVATED BY MEISSNER’S PLEXES

32409 rat intestine

Goblet cells of ileum, monkey

250

Terminal bars

Terminal bars Terminal bars

Terminal bars

• Intestine toluidine blue 32409 – http://viewer.serenusview.com/LinkHandler.axd?LinkId=469f3768-acb7-4ef3-aa82-2bdd18f77dc6

Download actual images at

The End