PULMONARY CIRCULATION, PULMONARY EDEMA, PLEURAL FLUID

Question 1

Two circulations

Answer 1

1. high-pressure, low-flow circulation
2. low-pressure, high-flow circulation

Question 2

supplies systemic arterial blood to the trachea, the
bronchial tree (including the terminal bronchioles) the
supporting tissues of the lung, and the outer coats (adventitia) of the pulmonary A & V

Answer 2

high-pressure, low-flow circulation

Question 3

branches of the thoracic aorta

Answer 3

bronchial arteries

Question 4

supply most of this systemic arterial blood at a pressure that is only slightly lower than the aortic pressure.

Answer 4

bronchial arteries

Question 5

supplies venous blood from all parts of the body to the
alveolar capillaries

Answer 5

low-pressure, high-flow circulation

Question 6

where oxygen (O2) is added, and carbon dioxide (CO2)
is removed

Answer 6

alveolar capillaries

Question 7

Pulmonary veins empty their effluent blood into __ atrium

Answer 7

left

Question 8

Systolic pressure of the normal human averages

Answer 8

25 mm Hg

Question 9

diastolic pressure averages about ___

Answer 9

0 to 1 mm Hg

Question 10

During systole = pressure in the pulmonary artery is essentially ____ the pressure in the right ventricle.

Answer 10

equal to

Question 11

Pulmonary Capillary Pressure = about ___

Answer 11

7 mm Hg

Question 12

left atrial pressure can be estimated with

Answer 12

pulmonary wedge pressure

Question 13

pressure measured through the catheter

Answer 13

Wedge pressure

Question 14

Use to study changes in pulmonary capillary pressure
and left atrial pressure in patients with congestive heart
failure

Answer 14

Wedge pressure

Question 15

Blood volume of the lungs

Answer 15

450 milliliters

Question 16

The ___ Serve as a Blood Reservoir

Answer 16

Lungs

Question 17

Rise of ___ concentration then causes constriction of small arteries and arterioles

Answer 17

calcium

Question 18

any time the lung alveolar air pressure becomes ___ than the capillary blood pressure, the capillaries close and there is
no blood flow

Answer 18

greater

Question 19

Zones of pulmonary blood flow

Answer 19

Zone 1: No blood flow during all portions of
the cardiac cycle
Zone 2: Intermittent blood flow only during
the peaks of pulmonary arterial pressure
Zone 3: Continuous blood flow because the
alveolar

Question 20

left atrial pressure in a healthy person almost never
rises above ____ (even during exercise)

Answer 20

+6 mm Hg

Question 21

causes the pulmonary interstitial fluid pressure
to rise from the negative range into the positive

Answer 21

Pulmonary Edema

Question 22

the space between the parietal and visceral pleurae

Answer 22

Pleural space