OrganEpicardiumepicardiumChestThe epicardium is the outermost layer of the heart wall and is the same structure as…
OrganEsophageal Musculaturetunica muscularis oesophagiChestThe esophageal musculature is unique in its transition from voluntary striated muscle in the upper esophagus…
OrganFibrous Pericardiumpericardium fibrosumChestThe fibrous pericardium is the tough, cone-shaped outer bag of dense connective tissue that surrounds the…
OrganFibrous Skeleton of the Heartskeleton fibrosum cordisChestThe fibrous skeleton is a framework of dense collagen at the base of the heart. It…
OrganFossa Ovalisfossa ovalisChestThe fossa ovalis is an oval depression on the right atrial side of the interatrial septum.…
OrganHeartcorChestThe heart is a hollow, four-chambered muscular pump about the size of a closed fist, weighing…
OrganHilum of the Lunghilum pulmonisChestThe hilum is the wedge-shaped area on the inner (mediastinal) surface of each lung where the…
OrganHorizontal Fissurefissura horizontalis pulmonis dextriChestThe horizontal fissure is found only in the right lung, where it separates the upper lobe…
OrganInferior Lobe of the Left Lunglobus inferior pulmonis sinistriChestThe inferior (lower) lobe of the left lung lies below and behind the oblique fissure, forming…
OrganInferior Lobe of the Right Lunglobus inferior pulmonis dextriChestThe inferior (lower) lobe of the right lung lies below and behind the oblique fissure and…
OrganInferior Mediastinummediastinum inferiusChestThe inferior mediastinum is the lower, larger part of the mediastinum, lying below the plane that…
OrganInteratrial Septumseptum interatrialeChestThe interatrial septum is the thin wall separating the right and left atria. It runs obliquely,…
OrganInterventricular Septumseptum interventriculareChestThe interventricular septum is the thick wall between the right and left ventricles. Most of it…
OrganInterventricular Sulcisulcus interventricularis anterior et posteriorChestThe anterior and posterior interventricular sulci are shallow grooves on the front and underside of the…
OrganLactiferous Ductsductus lactiferiChestLactiferous ducts are the main milk ducts of the breast, one draining each lobe. They run…
OrganLeft Atriumatrium sinistrumChestThe left atrium receives oxygenated blood from the lungs through four pulmonary veins. It forms most…
OrganLeft Auricleauricula sinistraChestThe left auricle (left atrial appendage) is a narrow, finger-like, often lobed pouch extending from the…
OrganLeft Bundle Branchcrus sinistrum fasciculi atrioventricularisChestThe left bundle branch is a broad sheet of conducting fibres that leaves the bundle of…
OrganLeft Lungpulmo sinisterChestThe left lung is slightly smaller than the right because the heart bulges to the left.…
OrganLeft Main Bronchusbronchus principalis sinisterChestThe left main bronchus carries air from the trachea to the left lung. It is about…
OrganLeft Ventricleventriculus sinisterChestThe left ventricle is the heart's main pumping chamber, driving oxygenated blood through the aortic valve…
OrganLingulalingula pulmonis sinistriChestThe lingula is a small, tongue-shaped projection of the left upper lobe that hangs below the…
OrganLobar Bronchibronchi lobaresChestThe lobar (secondary) bronchi are the branches of the main bronchi that supply each lobe of…
OrganLobules of the Breastlobuli glandulae mammariaeChestEach lobe of the breast is made of many small lobules: clusters of tiny milk-producing sacs…
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