Special Stains To Histologically Study Left Atrial Appendage (Laa) - Orcein & Ptah

Abstract

Background :-The structure of the heart undergoes constant adaptation to physiologic changes in the organism. The left atrium possess a venous component, a vestibule and an appendage and shares the septum. LAA is a major endocrine organ and is the main producer of ANP (atrial  natriuretic peptide) in the human heart. Atrial cardiocytes of the mammalian heart contain granules