This stylized anatomical illustration depicts a human heart in an anterior view, emphasizing its gross external morphology and coronary vasculature. The organ exhibits its characteristic ovoid shape with superiorly positioned great vessels, including cross-sectional views of the aorta and pulmonary trunk. The surface anatomy highlights the intricate branching patterns of the coronary arteries and veins, demonstrating their distribution across the myocardium toward the apex. The image uses an artistic, high-contrast color palette of green, blue, and yellow to delineate anatomical boundaries and the etched texture of the cardiac tissue. Educationally, the diagram serves to illustrate the relationship between the major cardiac chambers and the superficial vascular network, particularly in the context of cardiovascular health and hemodynamic pressures. The visualization emphasizes the complexity of the organ's blood supply, which is critical for understanding conditions like hypertension and coronary artery disease.

This clinical photograph of a formalin-fixed human heart cadaver specimen illustrates a Type V anatomical variation of the coronary arterial supply to the atrioventricular (AV) node. The image displays the inferior aspect of the heart, focusing on the inferior pyramidal space. Key vessels are labeled: the circumflex branch of the left coronary artery (LCxA), the atrioventricular nodal branch (AVNb), and the inferior interventricular branch (IVb). In this specific anatomical configuration, the AVNb is seen as a distinct, thinner vessel with a pale-yellow appearance originating directly from the LCxA, which has a larger diameter and more prominent reddish-brown coloration. The IVb is positioned inferiorly, and the AVNb acts as a connecting vessel between the LCxA and the distal myocardial structures. A small schematic inset in the bottom right corner provides a simplified diagram of this branching pattern. This material is significant for cardiovascular anatomy and surgical planning, demonstrating the variability of coronary dominance and blood supply to the cardiac conduction system.

Educational medical diagram and diagnostic imagery illustrating left ventricular (LV) segmentation and coronary artery distribution based on 2015 ASE guidelines. The graphic includes an anatomical heart illustration, schematic apical views, and corresponding echocardiographic frames. The anatomical diagram color-codes the Right Coronary Artery (RCA, blue), Left Anterior Descending artery (LAD, green), and Circumflex artery (CX, pink), with striped patterns indicating overlapping territories. Three schematic diagrams represent standard echocardiographic planes: Apical Four-Chamber (A4C), Apical Two-Chamber (A2C), and Apical Long-Axis (ALX), mapping coronary blood supply to specific LV myocardial segments. Below these, three transthoracic echocardiogram frames demonstrate automated segmentation masks: Region A (apical, anterior, and anteroseptal walls) in green, Region F (inferior and inferoseptal walls) in orange, and Region L (anterolateral and inferolateral walls) in purple. This visual resource is designed to teach the correlation between coronary anatomy and regional wall motion territories in cardiac imaging.

This clinical photograph of a formalin-fixed human heart specimen demonstrates a Type IV anatomical variation of the coronary arterial supply. The image focuses on the inferior pyramidal space, showing the Right Coronary Artery (RCA) and its distal branches. Key anatomical structures labeled include the RCA, the Inferior Interventricular Branch (IVb), and a duplicated Atrioventricular Nodal Branch (AVNb). The AVNb exhibits a distinct pale, yellowish-beige color and smooth texture compared to the deeper reddish-brown, striated appearance of the RCA and IVb. The duplicated AVNb originates from the RCA in close proximity to the origin of the IVb, illustrating a specific branching pattern relevant to cardiac electrophysiology and surgical anatomy. A schematic diagram in the lower right corner provides a simplified representation of the Type IV branching configuration. The specimen highlights developmental arterial variations that are clinically significant for procedures involving the AV node or during coronary revascularization.