The respiratory membrane is composed of:
A. the alveolar sacs and pulmonary arteries.
B. the alveolar membrane, the capillary wall, and their fused basement membrane.
C. the fusion of the type I cells and type II cells in the lungs.
D. the cells found between the alveolar pores.
Answer: B. the alveolar membrane, the capillary wall, and their fused basement membrane.
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A) visceral sensory division B) autonomic nervous system C) somatic motor division D) somatic sensory division
The two common iliac veins form the
A) femoral vein. B) greater saphenous vein. C) inferior vena cava. D) hepatic portal vein. E) innominate vein.
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A) bronze skin tone B) high blood pressure and edema C) weak muscles D) hypoglycemia E) inability to cope with stress
The process of organogenesis begins in the fetal period.
Answer the following statement true (T) or false (F)