The volume of the air which remains in the conducting airways and is NOT available for gas exchange is called the
a. vital capacity.
b. functional residual capacity.
c. anatomic dead space.
d. forced expiratory volume.
e. residual capacity.
C
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The metabolic condition called ___________ results from the destruction of the beta cells in the pancreas due to an autoimmune response
A. Type 2 diabetes B. gestational diabetes C. beta cell diabetes D. insulin-independent diabetes mellitus E. Type 1 diabetes
IgM immunoglobulin
a. serves as the B-cell surface receptor for antigen attachment b. is found in milk and tears c. mediates common allergies such as hay fever, asthma, and hives d. is the most abundant antibody produced by plasma cells e. is specific for viral invaders
Which structures pull on the tendinous cords (chordae tendinae) and hold them taut during ventricular contraction?
A. Papillary muscles B. Pectinate muscles C. Trabeculae carneae D. Coronary ropes E. Fibers in the atrioventricular bundle
Negative-pressure ventilation occurs when:
A) the diaphragm ascends and the intercostal muscles retract. B) air is drawn into the lungs when intrathoracic pressure decreases. C) pressure within the chest decreases and air is forced from the lungs. D) the phrenic nerves stop sending messages to the diaphragm.