Which of these skull bones does NOT contain a paranasal sinus?
A. frontal
B. parietal
C. maxillary
D. ethmoid
E. sphenoid
Ans: B. parietal
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This type of membrane protein extends across the entire lipid bilayer of the plasma membrane touching both intracellular fluid and the extracellular fluid
a) complement protein b) transmembrane protein c) peripheral protein d) lipoprotein e) All of these choices are correct.
A whistling murmur heard between the second and first heart sound would be indicative of
a. a stenotic AV valve. b. an insufficient AV valve. c. a stenotic aortic or pulmonary semilunar valve. d. an insufficient aortic or pulmonary semilunar valve. e. no conclusions can be reached based on the information provided.
Which heart component is influence by NE but not by ACh?
a. ventricular. b. AV node. c. heart rate. d. SA node. e. none of the above
Which of the following is regulated by a positive feedback mechanism in females?
A) menstruation B) fertilization C) ovulation D) implantation