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Hypoxic pulmonary vasoconstriction (HPV), also known as the Euler–Liljestrand mechanism, is a physiological phenomenon in which small pulmonary arteries constrict in the presence of alveolar hypoxia (low oxygen levels).
The first muscle protein discovered was myosin by a German scientist Willy Kühne, who extracted and named it in 1864. [7] In 1939 a Russian husband and wife team Vladimir Alexandrovich Engelhardt and Militsa Nikolaevna Lyubimova discovered that myosin had an enzymatic (called ATPase) property that can break down ATP to release energy. [8]
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A simple squamous epithelium, also known as pavement epithelium and tessellated epithelium, is a single layer of flattened, polygonal cells in contact with the basal lamina (one of the two layers of the basement membrane) of the epithelium. [1]
Arthur Clifton Guyton (September 8, 1919 – April 3, 2003) was an American physiologist.. Guyton is well known for his Textbook of Medical Physiology, which quickly became the standard text on the subject in medical schools.
Human body temperature; Human feces; Human skeletal changes due to bipedalism; Human skin color; Human vestigiality; Human waste; Hepoxilin; 5-Hydroxyeicosatetraenoic acid; 12-Hydroxyeicosatetraenoic acid; Hyperchlorhydria
A pulmonary shunt is the passage of deoxygenated blood from the right side of the heart to the left without participation in gas exchange in the pulmonary capillaries. It is a pathological condition that results when the alveoli of parts of the lungs are perfused with blood as normal, but ventilation (the supply of air) fails to supply the perfused region.