QUESTION 26
2 poi
One type of electrical defect in the heart is a delay in the electrical signal from the sinoatrial node to the relay
point. Predict the effect of this defect on the cardiac cycle.
The atria relax for a shorter period of time.
The atria relax for a longer period of time.
The ventricles relax for a shorter period of time.
o The ventricles relax for a longer period of time.

transformative rocks are the stones that emerge from the transformation of existing rock composes in a procedure called changeability, implies changing of structures. transformative rocks are shaped from alternate shakes that are changing a result of warmth or weight connected. one of this model is the earth developments that making rocks profoundly cover or crushed which will make the stones warmed and put under awesome weight. they are not softening but rather the minerals they are containing are changed synthetically that will shape transformative rocks. now and again different rocks are shaped when the others are near some liquid magma and getting warmed.

these muscles maintain the blood pressure in the vessels. the smooth muscles are innervated by nerves of the autonomic nervous system. when the muscles contract, they cause vasoconstriction of the vessels and increase blood pressure. when the muscles relax, they enable vasodilation of the   blood vessels hence reduce blood pressure.