A. Pacemaker cells located in the atria fire before the pacemaker cells in the ventricles. B. It takes time for hormones to diffuse from the atria to the ventricles to trigger contraction. C.The electrical signal generated in the right atrium is delayed at the AV node before passing to the ventricles. D.The ventricular muscle cells contract more slowly than the atrial muscle cells.
i think that the answer u r looking for is c
Answer:
Transports oxygen from the lungs to body cells.
Transports carbon dioxide from the cells to the lungs.
Explanation:
The blood is a tissue that is formed basically of plasma and cells, some nutrients and some hormones. The main function of it is the transportation of oxygen from the lungs to the rest of the cells of the body trough all the veins and arteries. At the same time meanwhile is passing in different organs and tissues, is collecting the carbon dioxide that is one of the body wastes to the lungs and then to outside human body.
In the blood there are some hormones but they are not produce in the blood.
Hope this info was useful.
The right answer is seizure.
The cardiovascular risk attributed to the pill is discussed. But an analysis of the published literature brings convincing elements on this subject.
All combined contraceptive pills, that is to say combining the two hormones estrogen and progesterone, are associated with a risk of venous thrombosis (blood clot).
