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Cannulation : Typically blood is drained by gravity through two cannulae inserted into the superior and inferior vena cavae. During bypass, if the SVC and IVC are snared, the entire venous return to the heart is diverted to the pump (total cardio pulmonary bypass). Whenever the right side of the heart has to be opened, the patient has to be on total bypass. Otherwise, when a chamber is opened, air will enter the tubing, causing air lock and cessation of venous retu1-n. For an aortic valve replacement or coronary artery bypass, the right side need not be opened. So the operation can be done using a single, two stage venous cannulae passing through right atrium into the inferior vena cava (atrio-venous cannula). The oxygenated blood is returned through an arterial cannula inserted into the ascending aorta or femoral artery.
Casein is the main protein in milk. There are three types of casein, one of which is beta casein. Beta casein comes in two main variants called A1 and A2. The order of amino acids
Comparing to cyclostomes (primitive vertebrates) what are the main novelties presented by fishes? Compared to cyclostomes, evolutionary novelties shown by fishes are: pectoral
How is the chromosome region where the centromere is located called? How are chromosomes classified in relation to the position of their centromere? The chromosome region where
Cobalt (Co) - Micronutrients The Co concentration in the dry matter of plants grown in soil normally lies around 0.02 to 0.5 ppm. In soils the content varies from 1 to 40 ppm.
Q. What are the cytochromes? Cytochromes are proteins of the interior mitochondrial membrane that are specialized in electron transfer and participate in the respiratory chain.
why is it known as middle man
Mortality - Population Parameters and Regulation The death of an individual in a population is known as mortality. Mortality rate like natality rate can be expressed as the nu
Evolution can be explained as follows 1) The change in the life over time by adaptation, over-reproduction, variation and differential survival/reproduction, a procedure refer
Why does geographical isolation lead to speciation? The Geographical isolation between groups of the same species leads to formation of a new species since it disallows crossin
WHICH SOIL WILL BE FRUIFUL FOR GROWING LENTILS AND OTHER PULSES
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