BIOM 2000 Lecture Notes - Lecture 4: Granulocyte, Macrophage, Lymph Node
20 Mar 2017
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Has left and right sides each with its own chambers. Atria have relatively thin walls compared to the walls of the ventricles. Receiving chambers (why is has thin walls) Ejecting blood/ discharge chambers (why it has. Major veins > atria (contraction of atrial muscle) > ventricles (contraction of ventricular muscles) > major arteries. Closed circuit that ows in one direction. Diastole = period when cardiac muscles are relaxing which allows for the passive ow of the atria and ventricles. Systole = period of atrial or ventricular muscle contraction. Blood pressure = systolic diastolic pressure (measured in mmhg) Ensure that blood ow is unidirectional and does not pool into the heart. Located between the ventricle-major vessel out of the heart. Not just periods of contraction and relaxation. Conduction system also helps = nervous innervations that assist with muscle contraction. 1) cells of the senatorial node (san) Spontaneously initiate action potentials that spread over the atria and avn.
