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Question 1: Injection of 10 ml of saline at 200 C into the right atrium gives rise to a momentary fall in Swan Ganz catheter tip temperature, which is positioned in the right pulmonary artery. This fall in temperature can be approximated to a triangle, with a maximum fall of 0.50 C and a duration2 of 7 seconds. See elsewhere for physical properties of blood and saline. Assume the initial temperature of the blood is 37.00 C. Estimate Cardiac Output in l/min.
Question 2: Cardiac output can also be estimated non-invasively by using radioactive substances or by high frequency electric current. Explain ONE of these methods explaining advantages and disadvantages compared to the method in (a).
Question 3: What factors lead to myocardial ischaemia (MI) and how can the risk of a life-threatening MI be reduced through surgical procedures?
Explain the flow of blood through the body by using the following terms: pulmonary circuit, systemic circuit, arteries, veins, capillaries, left ventricle and right ventricle, left atrium, right atrium, deoxygenated and oxygenated blood.
Consider the reaction: PCl5 (g) = PCl3 (g) + Cl2 (g). The degree of dissociation is given by the fraction of PCl5 that has undergone dissociation.
What would be the effect on the pH of the mitochondrial matrix of reducing the oxygen supply?
A true breeding wild-type strain of flies was crossed to another strain homozygous for the recessive X-linked mutant alleles m, r, and v. The F1 female offspring were testcrossed to a recessive strain of males. The following offspring were examine..
The genes for mahogany eyes and ebony body are approximately 25 map units apart on chromosome 3 in Drosophila. Assume that a mahogany-eyed female was mated to an ebony- bodied male and that the resulting F1 phenotypically wild-type females were ma..
Determine which of the following statements is true regarding the flow of energy from the sun to stored chemical energy?
q1. erminette fowls have mostly light-coloured feathers with the occasional black one giving a flecked appearance. a
If the sequence of amino acids coded for by a strand of DNA is: alanine-valine-lysine-leucine-serine-serine-asparagine-leucine what is the order of bases in thenon coding strand of DNA?
write 400-600 words that respond to the following questions with your thoughts ideas and comments. be substantive and
Draw a phylogenetic tree of photosynthetic organisms. Include the following in your tree: angiosperms, photosynthetic bacteria, non-photosynthetic bacteria, animals, photosynthetic protists, non-photosynthetic protists, gymnosperms, monocots, bryo..
Polio and HIV are both +ssRNA viruses have very different strategies for replicating their genomes. After the viral genomes enter the cell, explain the first step involved in replication of each genome.
A recipe calls for 10 ml of a 25mM stock of EDTA. However, all you have on hand is a five hundred mM stock. How much more concentrated is what you have relative to what the recipe calls for?
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