What are the middle three layers (4-5-6) that an oxygen molecule must cross when moving from the alveoli into the blood?

a. interstitial space, basement membrane of the capillary endothelium, and the capillary endothelium
b. interstitial space, basement membrane of the capillary endothelium, and the intracellular fluid of the erythrocyte
c. plasma of the capillary blood, the erythrocyte membrane, and the intracellular fluid in the erythrocyte.
d. the liquid lining the intra-alveolar membrane, alveolar epithelial cell, and the basement membrane of the alveolar epithelial cell


a. interstitial space, basement membrane of the capillary endothelium, and the capillary endothelium

Health Professions

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All health care workers must conform to a specific standard of ________ to protect patients.

Fill in the blank(s) with the appropriate word(s).

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_______ is defined as the omission or neglect of reasonable care

Fill in the blank(s) with the appropriate word(s).

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Lead aprons are classified as __________ objects

a. critical b. semicritical c. noncritical

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A DOCTOR wants to know how well elderly patients remember to take their medicine. The doctor measures the percentage of time during the week patients remembered to take their medicine. For a sample of 10 patients, the sample mean percentage was 75 and the sample varience was 15. If the doctor could test his/her entire patient popuation, what would he/she expect the population varience to be?

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