HTHS 1111 Unit 17 Quiz
1/5 - ANS oxygen is about 1/5 of the atmosphere. the partial pressure of oxygen is therefore
about _____ atmospheric pressure
\23 weeks - ANS normal human pregnancy (gestation) lasts 40 weeks. the earliest viable
human infants are born at
\26-28 weeks - ANS at what point in gestation is enough surfactant produced to allow premature
babies to survive without additional surfactant administration
\35% - ANS the partial pressure of oxygen in muscle tissue is much lower than in other tissues,
about 20 mm Hg. this curve shows that the corresponding O2 saturation at 22 mm Hg is about:
\7.6 mm Hg - ANS argon is about 1% of the atmosphere. at an atmospheric pressure of 760 mm
Hg, the partial pressure of argon is
\88% - ANS if a patient's body temperature is 43 degrees C, death usually results. one important
reason for this is at a body temperature of 43 degrees C, the maximum O2 sat in room air
\alveolar airspaces --> blood - ANS in external respiration, oxygen (O2) diffuses from the _____
to the ____ whereas in internal respiration, O2 diffuses from the blood to the tissues
\apex of the lung - ANS the region of the lung shown here is the
\bicarbonate ion (HCO3-) - ANS carbonic acid (H2CO3) when it releases a proton (H+) forms
\bicarbonate ion (HCO3) - ANS carbon dioxide (CO2) reacts with water (H2O) to form
\blood --> alveolar air spaces - ANS in external respiration, carbon dioxide (CO2) diffuses from
the ___ to the ____ whereas in internal respiration, CO2 diffuses from the tissues to the blood
\blood --> tissues - ANS in internal respiration, oxygen (O2) diffuses from the _____ to the ____
whereas in external respiration, O2 diffuses from the blood to the tissues
\bronchioles - ANS which of the following structures is part of the lower respiratory tract
\bronchioles; respiratory bronchioles - ANS terminal bronchioles join _____ and _____
\C - ANS which of the equations for bicarbonate, carbonic acid and carbon dioxide in plasma is
correct:
A: H2O + CO2 --> H2CO3 --> H+ + HCO3-
B: H2O + CO2 <-- H2CO3 <-- H+ + HCO3-
C: H2O + CO2 <--> H2CO3 <--> H+ + HCO3-
D: H+ + HCO3- <--> H2CO3 <--> H+ + HCO3-
E: H2O + CO2 <__> H2CO3 <--> H2O + CO2
\carbon dioxide is transferred from the bloodstream to the alveolar air space - ANS in the
process of external respiration
\carina - ANS the structure shown is where the trachea divides into two primary bronchi. the
name of this structure is the
\cilia - ANS the organelles found on the surface of this epithelium are ____. they continually
move mucus from the lower respiratory tract superiorly into the laryngopharynx. together with
the secretion of the cells, they form the muco____ry escalator
\contribution of oxygen to the total atmospheric pressure - ANS the atmospheric partial pressure
of oxygen is the
1/5 - ANS oxygen is about 1/5 of the atmosphere. the partial pressure of oxygen is therefore
about _____ atmospheric pressure
\23 weeks - ANS normal human pregnancy (gestation) lasts 40 weeks. the earliest viable
human infants are born at
\26-28 weeks - ANS at what point in gestation is enough surfactant produced to allow premature
babies to survive without additional surfactant administration
\35% - ANS the partial pressure of oxygen in muscle tissue is much lower than in other tissues,
about 20 mm Hg. this curve shows that the corresponding O2 saturation at 22 mm Hg is about:
\7.6 mm Hg - ANS argon is about 1% of the atmosphere. at an atmospheric pressure of 760 mm
Hg, the partial pressure of argon is
\88% - ANS if a patient's body temperature is 43 degrees C, death usually results. one important
reason for this is at a body temperature of 43 degrees C, the maximum O2 sat in room air
\alveolar airspaces --> blood - ANS in external respiration, oxygen (O2) diffuses from the _____
to the ____ whereas in internal respiration, O2 diffuses from the blood to the tissues
\apex of the lung - ANS the region of the lung shown here is the
\bicarbonate ion (HCO3-) - ANS carbonic acid (H2CO3) when it releases a proton (H+) forms
\bicarbonate ion (HCO3) - ANS carbon dioxide (CO2) reacts with water (H2O) to form
\blood --> alveolar air spaces - ANS in external respiration, carbon dioxide (CO2) diffuses from
the ___ to the ____ whereas in internal respiration, CO2 diffuses from the tissues to the blood
\blood --> tissues - ANS in internal respiration, oxygen (O2) diffuses from the _____ to the ____
whereas in external respiration, O2 diffuses from the blood to the tissues
\bronchioles - ANS which of the following structures is part of the lower respiratory tract
\bronchioles; respiratory bronchioles - ANS terminal bronchioles join _____ and _____
\C - ANS which of the equations for bicarbonate, carbonic acid and carbon dioxide in plasma is
correct:
A: H2O + CO2 --> H2CO3 --> H+ + HCO3-
B: H2O + CO2 <-- H2CO3 <-- H+ + HCO3-
C: H2O + CO2 <--> H2CO3 <--> H+ + HCO3-
D: H+ + HCO3- <--> H2CO3 <--> H+ + HCO3-
E: H2O + CO2 <__> H2CO3 <--> H2O + CO2
\carbon dioxide is transferred from the bloodstream to the alveolar air space - ANS in the
process of external respiration
\carina - ANS the structure shown is where the trachea divides into two primary bronchi. the
name of this structure is the
\cilia - ANS the organelles found on the surface of this epithelium are ____. they continually
move mucus from the lower respiratory tract superiorly into the laryngopharynx. together with
the secretion of the cells, they form the muco____ry escalator
\contribution of oxygen to the total atmospheric pressure - ANS the atmospheric partial pressure
of oxygen is the
