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Lernmaterialien
what is the origin of the heart tube?
- angiogenic cell clusters located in the cardiogenic plate
- cardiogenic plate derived from splanchnopleuric mesoderm
what is compensated stage of shock?
- it is a stage of shock where the compensatory mechanism can still maintain tissue perfusion
what is the irreversible stage of shock?
- it is a stage of shock where there is severe tissue & cellular damage.
- the organism will still die even the perfusion has been restored.
state 2 type of membrane junctions and their function
1. desmosomes - to hold the cardiac cells together
2. gap junctions- to link the cells to syncytium to allow ion movement from one to another.
state one characteristic of conduction/pacemaker cells
- it can generate AP without the nervous stimulation
what are the ions involved during depolarization in contractile cells
NA+
state one characteristic of contractile cells
- it can develop depolarization from the autorhythmic cells/conduction/pacemaker
what are the ions involved during repolarization in contractile cells
Ca2+
cardiac contraction occurs from....
apex to base
name the valves on the right side of the heart
tricuspid
what is the decompensated stage of shock?
- it is a stage of shock where the compensatory mechanism can no longer maintain the tissue perfusion
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