Cardiac Biomarkers

question 1 of 9 course: Biomedical Science(Degree)
question 1 of 9 course: Biomedical Science(Degree)

Q: True or False: The sinoatrial (SA) node is located in the left ventricle of the heart.

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A fine, soft brush (like sable hair) is used to gently guide the paraffin ribbon as it comes off the knife. This prevents it from crumpling, helps separate it from the knife edge safely, and allows the operator to lay it smoothly onto the water bath.

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