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External and internal respiration, and the forms oxygen and carbon dioxide travel in.
#us_hs_anatomy_physiology
20 questions
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Across the membrane in the lungs, oxygen enters pulmonary capillary blood while carbon dioxide enters the air space to be exhaled. What process is this?
Most of the gas needed by body cells for aerobic ATP production travels through arteries attached to hemoglobin. What blood form is this?
Air in a lung air space has PO₂ 104 mmHg; arriving capillary blood has PO₂ 40 mmHg. Which way does oxygen diffuse?
Most waste gas produced by aerobic tissues is carried in plasma after conversion inside red blood cells. What form is it?
At a working muscle, oxygen leaves systemic capillary blood and carbon dioxide enters that blood. What process is this?
Arriving pulmonary capillary blood has PCO₂ 45 mmHg; air in the adjacent air space has PCO₂ 40 mmHg. Which way does carbon dioxide diffuse?
A small fraction of the gas picked up in the lungs reaches tissues without binding hemoglobin. What form carries that fraction?
During hard exercise, working muscles release more carbon dioxide and blood pH falls. What response do brainstem breathing centers make?
At the thin surface where inhaled air meets blood, carbon dioxide diffuses out of the blood before exhalation. What process is this?
Incoming blood at a working muscle has PO₂ 95 mmHg; interstitial fluid around the cells has PO₂ 20 mmHg. Which way does oxygen diffuse?
When waste gas from tissues binds to the globin part of hemoglobin, what transport form is made?
After rapid voluntary breathing, arterial carbon dioxide falls and blood pH rises. What response do brainstem control centers make?
In a resting kidney, oxygen leaves nearby systemic capillaries while carbon dioxide enters them from the organ cells. What process is this?
Active tissue fluid has PCO₂ 55 mmHg; arterial blood entering its capillaries has PCO₂ 40 mmHg. Which way does carbon dioxide diffuse?
Inside red blood cells, which enzyme speeds up the combination of carbon dioxide and water into carbonic acid?
A person holds their breath, so carbon dioxide accumulates in the blood. What change do the brainstem centers make?
In the lungs, oxygen moves from an air sac into blood and begins loading onto hemoglobin as carbon dioxide leaves the blood. What process is this?
In systemic capillaries, the gas needed for ATP production unloads from hemoglobin after arriving mainly as what form?
Air in an air space and blood leaving its capillary both have PO₂ 100 mmHg. What is the net oxygen movement?
As excess carbon dioxide is blown off and blood pH returns toward normal, what do brainstem breathing centers do?
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Organs of the Alimentary Canal
40 questions
