Aortic arch: major branch order "Know your ABC'S": Aortic arch gives rise to: Brachiocephalic trunk left Common Carotid left Subclavian Beware though trick question of 'What is first branch of aorta?' Technically, it's the coronary artert
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“ ACE Inhibitors- How do they work? Angiotensin II is a very potent chemical that causes the blood vessels to contract, thereby narrowing the vessels. This increases the pressure within the vessels causing high blood pressure (hypertension).
Preload is the stretch. The amount of volume being returned to the right side of the heart from systemic circulation. Afterload is the squeeze. The amount of resistance the left side of the heart has to overcome in order to eject blood.