Question

c. The transpulmonary (transmural) pressure can best be described as a. the pressure measured within the lungs during inhalation only b. the pressure in the intrapleural space that rises during expiration only c. the difference between the intrapulmonary pressure and the intrapleural pressures d. the difference between the intrapleural pressure and the atmospheric pressure What is NOT true of the ductus arteriosus a. It is a fetal shunt system b. It diverts blood from the left pulmonary artery (pulmonary trunk) to the to the Aorta It diverts blood from the right atrium to the left atrium d. It closes shortly after birth e. It becomes the ligamentum arteriosum after birth Which statement about Korotkoff sounds is false? a. They are heard when vibrations occur in the arterial walls as blood flows noisily through a pinched artery. b. They are used to detect defects in the cardiac valves that produce the "lub-dub" sounds. C. They are only present when blood pressures are between the high systolic and the low diastolic pressure extremes. d. The quality of these sounds is different in persons with high blood pressure than in those with low blood pressure. e. The last sound occurs when the cuff pressure is equal to the diastolic pressure.

Answer 1

1)Option C is the answer.

TransPulmonary pressure is the pressure difference between Alveolar pressure(intra pulmonary pressure) and Intrapleural pressure.

2)Option c is the answer.

It is present in lower chambers(Ventricles) of heart before birth,after birth it gets close and become ligament called ligamentum arteriosum.

3)Option d is the answer.

It will be same in all people irrespective of persons blood pressure.Readings are taken by adjusting cuff pressure with respect to persons blood pressure.