1. Which of the following pertains to what happens whenthe diaphragm, external intercostal, scalene, pectoralis minor,serratus anterior and sternocleidomastoid musclescontract?

A. This occurs during forced inhalation. The sum of Tidal volumeand inspiratory reserve cvolume of air inspired.

B. This occurs during foced inhalation. Tidal volume measeuresthe total volume of air inspired.

C. This occurs during foced exhalation. ERV measures the totalvolume of air expired.

D. This occurs during forced exhalation. VC measures the volumeof air forcefully expired.

2. Normal healthy people breath dueto______________.

A. A hypercapnic drive

B. A hypocapnic drive

C. A hypoxic drive

3. Breathing 100% oxygen will?

A. Significantly increase oxyhemoglobin saturation

B. Increase pO2 and the rate of oxygen unlodaing at thetissues

C. Cause a right shift in the oxygen-hemoglbin dissociationcurve

4. Low blood levels of 02 augment chemoreceptorsensitvity to pCO2. How would low p02 effect respiratoryrate?

A. It would increase Respiratoy Rate

B. It would decrease Repsiratoy Rate

5.All of the folloiwng play a role in increasing theoxygen unloading at tissue in someone with iron deficiency anemiaExcept:

A. Respriatory acidosis

B. An icnrease in 2-3 DPG

C. An increase in deoxyhemoglobin

D. The affinity of 2-4 DPG for hemoglobin.