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Anterior view of the heart, with all great vessels labeled. Great vessels are the large vessels that bring blood to and from the heart. [1] These are: [1] [2] [3] Superior vena cava; Inferior vena cava; Pulmonary arteries; Pulmonary veins; Aorta; Transposition of the great vessels is a group of congenital heart defects involving an abnormal ...
Congenital heart diseases involving only the primary arteries (pulmonary artery and aorta) belong to a sub-group called transposition of the great arteries (TGA), which is considered the most common congenital heart lesion that presents in neonates.
In anatomy, the venae cavae (/ ˈ v iː n i ˈ k eɪ v i /; [1] sg.: vena cava / ˈ v iː n ə ˈ k eɪ v ə /; from Latin 'hollow veins') [2] are two large veins (great vessels) that return deoxygenated blood from the body into the heart. In humans they are the superior vena cava and the inferior vena cava, and both empty into the right atrium ...
This is a list of historical ship types, which includes any classification of ship that has ever been used, excluding smaller vessels considered to be boats.The classifications are not all mutually exclusive; a vessel may be both a full-rigged ship by description, and a collier or frigate by function.
[8] [9] American and British 19th century maritime law distinguished "vessels" from other watercraft; ships and boats fall in one legal category, whereas open boats and rafts are not considered vessels. [10] Starting around the middle of the 18th century, sailing vessels started to be categorised by their type of rig.
This is a list of the oldest ships in the world which have survived to this day with exceptions to certain categories. The ships on the main list, which include warships, yachts, tall ships, and vessels recovered during archaeological excavations, all date to between 500 AD and 1918; earlier ships are covered in the list of surviving ancient ships.
This timeline reflects the largest extant passenger ship in the world at any given time. If a given ship was superseded by another, scrapped, or lost at sea, it is then succeeded. Some records for tonnage outlived the ships that set them - notably the SS Great Eastern, and RMS Queen Elizabeth.
The vessels may be reversed ("transposition of the great vessels"). The two halves of the split tract must migrate into the correct positions over the appropriate ventricles. A failure may result in some blood flowing into the wrong vessel (e.g. overriding aorta). The four-chambered heart and the great vessels have features required for fetal ...