Oxygen is carried in the blood in two ways. Most of it is bound to hemoglobin while the remainder is carried in what form?
A. Bound to plasma proteins and lipids
B. Converted to high-energy phosphates and bound to albumin
C. Converted to CO2
D. Dissolved in the plasma
Answer: D. Dissolved in the plasma
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Of the three phases of swallowing, only the esophageal phase is involuntary.
Answer the following statement true (T) or false (F)
The surface of immune system ____ contains receptors for a variety of central nervous system chemical messengers.
A. sex hormones growth B. hormones catecholamines C. lymphocytes D. antibodies
The largest nerve in the body that is formed from L4-S3 is the
A) radial. B) brachial. C) sciatic. D) tibial. E) None of the answers are correct.
When jumping into water you notice resistance. This resistance is caused by water's ________.
A. hydrophobic tension B. hydrophilic tension C. cohesiveness D. adhesiveness E. osmotic equilibrium