An oocyte is viable up to ________ hours after ovulation
A) 2
B) 24
C) 48
D) 104
B
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During normal, quiet inhalation
A. air is drawn into the lungs because of the contraction of the internal intercostal muscles. B. there is an increase in the atmospheric air pressure. C. the diaphragm relaxes while the rib cage is pulled down. D. the volume of the thoracic & pleural cavities increases. E. air is introduced into the pleural cavity thus increasing the pressure around the lungs.
A positive Babinski sign in adults indicates damage to the pyramidal motor tracts.
Answer the following statement true (T) or false (F)
What do vellus hairs lack?
A) cortex B) pigment C) keratin D) cuticle
Norepinephrine acts on the heart by ________.
A) decreasing heart contractility B) causing a decrease in stroke volume C) blocking the action of calcium D) causing threshold to be reached more quickly