Science Quiz / Pulmonary Circulation & Gas Transport in the Blood

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Can you name the Pulmonary Circulation?

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QuestionAnswer
T/F: The oxygen dissolved in the blood is enough to meet the body's metabolic needs.
An increase in 2, 3 DPG production will cause a ____-ward shift in the oxygen binding curve for hemoglobin.
The pulmonary circulation is a ___ compliance system.
In this zone the alveolar pressure exceeds the pulmonary arterial pressure
A ____-ward shift in the oxygen binding curve to hemoglobin denotes an increase in oxygen delivery to tissues.
In _____, the O2 content is decreased but there is no change in the relationship of oxygen binding to hemoglobin.
The resistance in the extra-alveolar vessels increases on _____. (inspiration or expiration)
_____ partial pressure of CO2 causes vasoconstriction
T/F: The concentration of dissolved oxygen in the blood determines the percent saturation of hemoglobin
normal amount of hemoglobin in the blood (in grams/100mL)
In this zone the alveolar pressure is less than the pulmonary arterial pressure but it exceeds the pulmonary venous pressure
T/F: The binding of oxygen to hemoglobin is linear
When oxygen binds hemoglobin to form oxyhemoglobin, is hemoglobin is a relaxed or tense state?
When pulmonary arterial and/or venous pressure increases, more fluid enters the interstitial space. If the lymphatic system cannot absorb the fluid, the result is _____.
T:F: There is a left to right shunt in the pulmonary circulation that arises from blood that does not flow through the pulmonary capillaries to pick up oxygen before it enters the
At total lung capacity, the resistance is the least in the extra-alveolar or alveolar vessels?
The ____ circulation supplies the conducting airways.
Hemoglobin is 75% saturated at ___ mmHg O2.
When capillaries are already open further increases in blood pressure dilate the vessels, which is known as ____.
At larger lung volumes, what happens to the resistance of the alveolar vessels? (increase or decrease)
At residual volume, the resistance is the least in the extra-alveolar or alveolar vessels?
mean arterial pressure in the pulmonary circulation
T/F: There is more blood flow at the apex of the lung versus the base.
calculated by the [(arterial gas content -venous gas content) x blood flow]
According to Henry;s Law, concentration of dissolved gas is dependent on what two variables.
Are the extra-alveolar and alveolar vessels in parallel or series?
Hemoglobin is 90% saturated at ___ mmHg O2.
The content carried by hemoglobin can be calculated by multiplying ____ and _____.
In _____, the O2 content is decreased with a decreased amount of O2 binding to hemoglobin.
A ____-ward shift in the oxygen binding curve to hemoglobin denotes an decrease in oxygen delivery to tissues.
QuestionAnswer
Hemoglobin can hold up to _____ mlO2/g Hemoglobin
In this zone the pulmonary arterial and venous pressures are greater than the alveolar pressures
T/F: Low oxygen in alveolar air can act on pulmonary vessels to direct blood away from hypoxic regions and increase pulmonary arterial pressure.
these vessels are affected by the intrapleural pressure.
CO2 can be dissolved in the blood, carried in the form of bicarbonate, or carried as _____ compounds.
what is the carrying capacity of hemoglobin in the blood per 100mL (ml O2 per 100mL of blood.)
As pulmonary arterial pressure increases, what happens to the resistance ? (increases or decreases)
Lowest total resistance occurs at _____.
True/ False: The total content of CO2 is higher in the blood than O2.
The resistance in the alveolar vessels increases on _____. (inspiration or expiration)
defined as the amount of O2 bound to hemoglobin / the carrying capacity of hemoglobin
this substance or gas vasodilates the pulmonary vasculature
T/F: Total gas content is calculated by adding the amount carried on hemoglobin and the amount of gas dissolved
When oxygen is released from hemoglobin to form deoxyhemoglobin, is hemoglobin is a relaxed or tense state?
Venous partial pressure of oxygen (mm Hg)
Hemoglobin is 50% saturated at ___ mmHg O2.
molecule made as a result of metabolism of RBC.... its production is increased under hypoxic conditions
Low partial pressure of O2 in the alveolar air causes _____ in the small pulmonary arteries
An increased pCO2 or a decrease in blood pH will cause a rightward shift of the blood oxygen binding curve to hemoglobin. This is known as the ____ effect.
As pulmonary arterial pressure increases blood flows through capillaries that previously had little or no blood flow. This is known as _____.
T/F: AN increase in temperature, increases oxygen delivery to tissues by changing the conformation of hemoglobin.
primary form of CO2 in the blood
T/F: Under normal circumstances, there is no Zone 1 in the lungs
True/ False: Vaso active substances such as prostaglandins, leukotrienes, and angiotensin II are metabolized and/ or removed in the lung
Where does recruitment usually occur in the lung.
mean arterial pressure in the systemic circulation
Alveolar vessel resistance is the lowest in which zone?
As pulmonary arterial pressure increases, what happens to the blood flow? (increases or decreases)
At larger lung volumes, what happens to the resistance of the extra-alveolar vessels? (increase or decrease)
These vessels are affected by alveolar pressure and includes capillaries surrounding alveoli

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Created May 7, 2012ReportNominate
Tags:blood, circulation, gas, transport

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