Heart Anatomy

1. ANATOMY OF RIGHT ATRIUM ; RIGHT
VENTRICLE; PULMONARY AND
TRICUSPID VALVE
BY: DR DHANESH KUMAR BHARDWAJ
DNB-CTVS

26. RIGHT ATRIUM
• RIGHT UPPER CHAMBER OF HEART
• RECEIVES VENOUS BLOOD FROM WHOLE
BODY THROUGH MAIN SIX TRIBUTARIES
• FORM RIGHT BORDER ; PART OF UPPER
BORDER ;STERNOCOSTAL SURFACE AND BASE
OF HEART

28. IMAGE OF
RIGHT ATRIUM

29. EXTERNAL FEATURES
• CHAMBER IS ELONGATED VERTICALLY ;RECEIVING
SVC AT UPPER END END AND IVC AT THE LOWER
END
• RIGHT AURICLE :UPPER END PROLONGED TO LEFT
TO FORM IT.
• AURICLE COVER THE ROOT OF AA AND PARTLY
OVERLAPS THE INFUNDIBULAM OF RV .
• ITS MARGIN ARE NOTCHED AND INTERIOR IS
SPONGE LIKE WHICH PREVENTS THE FREE FLOW
OF BLOOD .

30. • SULCUS TERMINALIS
• CRISTA TERMINALIS
• RIGHT ATRIOVENTRICULAR GROOVE

31. Tributaries of right atrium
• SVC
• IVC
• CORONARY SINUS
• ANTERIOR CARDIAC VEIN
• VENAE CORDIS MINIMI (THEBESIAN VEINS)
• SOMETIME RIGHT MARGINAL VEIN

32. INTERNAL FEATURES
• SMOOTHPOSTERIOR PART OR SINUS
VENARUM
• ROUGH ANTERIOR OR PECTINATE PART
INCLUDING THE AURICLE
• INTERATRIAL SEPTUM

33. TRICUSPID VALVE
COMPONANTS
• FIBROUS RING
• CUSPS

34. SURFACE MARKING OF TRICUSPID
VALVE
; BEING NEARLY
VERTICAL ;4CM LONG ;BEHIND THE RIGHT HALF OF
STERNUM OPPOSITE THE 4TH AND 5TH SPACES

44. PULMONARY VALVE
• SEMILUNAR VALVE
• NO FIBROUS RING
• LUNULE
• PULMONARY SINUS

45. SURFACE MARKING
• A HORIZONTAL LINE ;2.5CM LONG ;BEHIND
THE UPPER BOARDER OF 3RD LEFT COSTAL
CARTILAGE AND ADJOINING PART OF
STERNUM

51. RIGHT VENTRICLE
• TRINGULAR CHAMBER
• 2 SURFACES
• INFLOWINGOR TRABECULAE CARNEAE AND
OUTFLOWIG PART INFUNDIBULUM
• SUPRAVENTRICULAR CREST
• 2 ORIFICES
• MUSCULAR RIDGES OR T.C ARE THREE TYPES
;RIDGE; BRIDGE; PILLAR
• CRECNTRIC CAVITY

56. RIGHT VENTRICLE

58. THANKING YOU