the implantation bleeding occurs in the moment when the fertilized egg gets implanted into the sensitive lining of the uterus similarly the length of the bleeding could also vary from one case to the other it is possible for the bleeding to be brief and hardly noticeable
Angiotensin is a peptide hormone that causes vasoconstriction and a subsequent increase in blood pressure. It is part of the renin-angiotensin system, which is a major target for drugs that lower blood pressure. Angiotensin also stimulates the release of aldosterone, another hormone, from the adrenal cortex.
Angiotensin II is a potent vasoconstrictor, which also increases blood pressure. The role of the renin-angiotensin-aldosterone system in regulation of blood pressure. Solid lines represent positive interactions; broken lines show negative interactions or feedback inhibition.From Cotran et al., 1994.enin-angiotensin-aldosterone system see renin-angiotensin-aldosterone system. respiratory system the group of specialized organs whose specific function is to provide for the transfer of oxygen from the air to the blood and of waste carbon dioxide from the blood to the air.