NEET BIOLOGY

Detailed explanation-1: -For a healthy resting adult person, the average systolic/ diastolic pressures are 120/180 mm Hg. Aorta is directly supplied by ventricle thus, the blood pressure in the aorta is highest during systole of the ventricle. During it, left ventricle contracts and pushes blood into the aorta.

Detailed explanation-2: -Blood pressure is highest within the large arteries (such as the aorta) because they are connected directly to the ventricle of the heart. As the blood vessel splits from the small arteries and into the arterioles, there is a drop in blood pressure.

Detailed explanation-3: -At peak systole, the blood pressure in the aorta reaches approximately 120 mmHg under normal healthy human adult conditions. At the point that the aortic valve closes, the pressure in the aorta is approximately 100 mmHg.

Detailed explanation-4: -During ventricular systole, pressure rises in the ventricles, pumping blood into the pulmonary trunk from the right ventricle and into the aorta from the left ventricle. Again, as you consider this flow and relate it to the conduction pathway, the elegance of the system should become apparent.

Detailed explanation-5: -When the left ventricle (LV) contracts, it generates a systolic blood pressure of 100-140 millimeters of Hg (mm Hg). The aortic diastolic pressure is usually 60-90 mm Hg.