Chapter 16 - Respiration (Test Your Knowledge)

HCO3-

All of the following can bond with hemoglobin except 1) HCO3- 2) O2 3) H+ 4) CO2 5) NO

The venous percent oxyhemoglobin saturation is decreased.

During exercise, which of these statements is true? 1) The arterial percent oxyhemoglobin saturation is decreased. 2) The venous percent oxyhemoglobin saturation is decreased. 3) The arterial PCO2 is measurably increased. 4) The arterial pH is measurably decreased.

the kidneys.

Erythropoietin is produced by

The oxygen content of whole blood would be three times normal.

If a person were to dive with scuba equipment to a depth of 66 feet, which of these statements would be false? 1) The arterial PO2 would be three times normal. 2) The oxygen content of plasma would be three times normal. 3) The oxygen content of whole blood would be three times normal. 4) All of the above measurements would remain the same as at sea level.

decrease in the arterial PCO2.

If a person with normal lung function were to hyperventilate for several seconds, there would be a significant

the arterial PO2 would be normal.

If the blood lacked red blood cells but the lungs were functioning normally,

a pneumothorax has probably occurred, the lungs cannot inflate, and elastic recoil causes the lungs to collapse.

If the transpulmonary pressure equals zero,

bicarbonate.

Most of the carbon dioxide in the blood is carried in the form of

acidosis, fever, anemia, and acclimatization to a high altitude.

The affinity of hemoglobin for oxygen is decreased under conditions of

metabolic acidosis.

The bicarbonate concentration of the blood would be decreased during

H+ in brain interstitial fluid that is derived from blood CO2.

The chemoreceptors in the medulla are directly stimulated by

carotid bodies.

The hypoxic ventilatory response occurs when low arterial PO2 stimulates the

the vital capacity.

The maximum amount of air that can be expired after a maximum inspiration is

the medulla oblongata.

The rhythmic control of breathing is produced by the activity of inspiratory and expiratory neurons in

increased ventilation, increased production of 2,3-DPG, and increased produced of erythropoietin.

Which of these occur(s) during hypoxemia?

The intrapulmonary pressure is greater than the intrapleural pressure.

Which of these statements about intrapulmonary pressure and intrapleural pressure is true? 1) The intrapulmonary pressure is always subatmospheric. 2) The intrapleural pressure is always greater than the intrapulmonary pressure. 3) The intrapulmonary pressure is greater than the intrapleural pressure. 4) The intrapleural pressure equals the atmospheric pressure.

It is higher in the systemic veins than in the systemic arteries.

Which of these statements about the partial pressure of carbon dioxide is true? 1) It is higher in the alveoli than in the pulmonary arteries. 2) It is higher in the systemic arteries than in the tissues. 3) It is higher in the systemic veins than in the systemic arteries. 4) It is higher in the pulmonary veins than in the pulmonary arteries.

Venous oxyhemoglobin saturation

Which of these would be most affected by a decrease in the affinity of hemoglobin for oxygen?