The four heart valves (tricuspid, pulmonary, mitral and aortic) open and close at just the right moment to keep the blood moving in the proper direction through the heart. It is helpful to visualize ...

Branches off directly from the arch of the aorta (as it travels down to supply oxygenated blood to the upper body) Passes between the anterior and middle scalene muscles (located in the neck) Ends at ...

WASHINGTON — SpaceX’s seventh Starship/Super Heavy test flight ended prematurely Jan. 16 when the Starship upper stage was apparently lost while ascending into space. The vehicle lifted off ...

ANEURYSMS of the thoracic aorta may be of diverse etiology. Atherosclerosis, syphilis, medial degeneration, trauma and occasionally sepsis have been implicated. 1–4 The present case represents a ...

with a left heart drainage tube placed at the root of the right upper pulmonary vein. For patients in the CA group, after establishing CPB, the nasopharyngeal temperature was gradually reduced to 32°C ...

What is aortic stenosis in children? Aortic stenosis means that your child has a heart valve that is too narrow or is blocked. The aortic valve is 1 of 4 heart valves that keep blood flowing through ...

She was diagnosed with severe aortic stenosis. This is a degenerative heart condition in which the valve between the heart and the main artery that carries blood to the rest of the body becomes ...