Following an optimal inspiration, the amount of air that can be forced from the lungs in a single exhalation is called the:
A) functional reserve capacity.
B) expiratory reserve volume.
C) residual expiratory volume.
D) fraction of inspired oxygen.
Answer: A) functional reserve capacity.
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Sandy had a cookie for a snack. Which of the following statements accurately describes the fate of the carbon atoms in the sugar molecules present in Sandy's cookie after she ingested it?
A. The carbon atoms were released as part of carbon dioxide, which later was excreted as part of exhaled air. B. The carbon atoms combined with hydrogen ions to buffer the stomach acids. C. The carbon atoms were stored in Sandy's bones until they were needed for some other cellular process. D. The carbon atoms were released as part of carbon dioxide, which later was excreted as part of Sandy's urine.
Addition of new bone to a long bone occurs at the:
a. epiphyseal side of the epiphyseal plate b. articular cartilage c. diaphyseal side of the epiphyseal plate d. periosteum e. both c and d
Which of the following represent the correct sequence for bile leaving the liver?
A. Bile travels from the hepatocytes, to hepatic ductules, to the common bile duct, to the right and left hepatic ducts, to the common hepatic duct. B. Bile travels from the hepatocytes, to the right and left hepatic ducts, to hepatic ductules, to the common hepatic duct, to the common bile duct. C. Bile travels from the hepatocytes, to the right and left hepatic ducts, to the common hepatic duct, to the common bile duct, to hepatic ductules. D. Bile travels from the hepatocytes, to hepatic ductules, to the right and left hepatic ducts, to the common hepatic duct, to the common bile duct.
Some of the largest spherical cells in the human body (for example, oocytes) have a diameter of approximately
A. 1 nm. B. 1 cm. C. 1 mm. D. 100 nm. E. 100 mm.