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14 Exakte Antworten 11 Text Antworten 426 Multiple Choice Antworten
Fenster schliessen

1. peripheral chemoreceptors

a. Are in the aortic and carotid bodies

b. Are stimulated by decrease in partial pressure of O2 (60mmHG triggers increase in ventilation)

c. Are stimulated by increase in partial pressure of CO2 and decrease in pH

d. All answers are correct

Fenster schliessen

6. switch off neurons that shorten inspiration

a. Have stimulating signals from pneumotaxic center

b. Have inhibiting signals from pneumotaxic center

c. Have signals from central chemoreceptors

d. Answer a and c is correct

Fenster schliessen

8. total lung capacity equals:

a. IRV+TV+ERV+RV

b. VC + TV

c. IRV + TV + ERV

d. TLC – RV

Fenster schliessen
1

1 Kommentare

  • 09.06.2019
    C. Pneumotaxic Center
1

9. the basic rhythm of respiration is generated by neurons located in the medulla. Which of the following limits the duration of inspiration and increases respiratory rate?

a. Dorsal respiratory group

b. Apneutic center

c. Pneumotaxic center

d. Ventral respiratory group

Fenster schliessen

4. Increase in CO2 concentration in blood will:

A. Stimulate central chemoreceptors in order to increase hydrogen ions level in blood

B. Decrease minute ventilation and vital capacity of lungs

C. Increase breath rate and CO2 expulsion

D. Trigger baroreflex and renal flow

Fenster schliessen

31. Anatomic dead space:

A. Is in low parts of airways

B. Equals 150ml

C. Is in upper parts of lungs

D. Answer B and C is correct

Fenster schliessen

47. The form of hemoglobin that has carbon dioxide attached is called:

 

HbCO2

A. Carboxyhemoglobin

B. Carbaminohemoglobin

C. Methemoglobin

D. Deoxyhemoglobin

Fenster schliessen

54. In the following reaction, what does A represent?CO2 + H2O <—-> H2CO3 <—> H+ + A

 

H2CO3 = carbonic acid

equation performed by carbonic anhydrase in the RBC 

A. Bicarbonate

B. Carbonic acid

C. Carbonic anhydrase

D. Hemoglobin