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Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
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The familiar sounds of your heart are made by the heart's valves as they open and close.

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When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Insulin Types and action times Insulin Types and action times
Mechanism of Action of Antipsychotic Drugs Mechanism of Action of Antipsychotic Drugs
Ion channels in myocardial cells: (a) resting state before action potential (all channel gates ... Ion channels in myocardial cells: (a) resting state before action potential (all channel gates ...
The action potential The action potential
An Enzyme in Action Enzymes speed up reactions in your body An Enzyme in Action Enzymes speed up reactions in your body
Current intensity and the frequency of action potentials Current intensity and the frequency of action potentials
Video: Erythropoietin (EPO)

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