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Small Muscular Artery in the Heart. Cross Section.
Description:A small muscular artery in the heart, specifically, in the moderator band. Notice the three layers of the vessel: intima, media, adventitia. The connective tissue in the adventitia stains blue. It is obvious that the smooth muscles of the media make up the thickest portion of the vessel wall. This vessel supplies the cells of the moderator band. What will happen to the heart if there is a sudden and complete blockage of this vessel? Original mag. 50x Masson trichrome. Samll artery. Heart. Circulatory System. Sheep.