Most O2 is carried in the blood ________; but most CO2 is ________.
A. dissolved in plasma; associated with salt or acid
B. bound to hemoglobin; associated with bicarbonate ions in the plasma
C. bound to plasma proteins; carried as CO2
D. combined with albumin; associated with carbonic acid
E. bound to hemoglobin; bound to albumin
Answer: B
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Spongy bone tissue lacks
a) lamellae. b) lacunae. c) osteocytes. d) osteons. e) canaliculi.
Which of these is NOT a muscle that can flex the knee?
a. biceps femoris b. vastus medialis c. gastrocnemius d. gracilis e. sartorius
The renal corpuscle connects to the ________.
A. proximal convoluted tubule B. renal convoluted tubule C. loop of Henle D. distal convoluted tubule E. collecting duct
When pain is felt by a visceral organ, but the cerebral cortex interprets it as coming from the skin, the stimulus has been ________.
A. referred B. sensed C. adapted D. projected