Opsonins
a. enhance phagocytosis by linking the foreign cell to a phagocytic cell
b. include antibodies
c. include a certain complement protein
d. include antibodies and a certain complement protein
e. have all of the above characteristics
E
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What structure bears the most weight when we sit?
A. Ischial tuberosity B. Pubic symphysis C. Iliac crest D. Obturator foramen E. Ischial spine
Which of the following associations is incorrect pertaining to the blood supply of the brain?
A) middle cerebral artery—supplies the lateral surface of the brain B) anterior communication artery—connects anterior cerebral arteries C) hemorrhagic stroke—severe headache and stiff neck D) cerebral arterial circle (circle of Willis)—an anastomosis between the two vertebral and two internal carotid arteries E) cerebral arterial circle (circle of Willis)—in most cases prevents development of neurological symptoms following acute ischemic stroke
Poor lung compliance during your initial attempt to ventilate an unconscious, apneic adult should be treated by:
A) sweeping the patient's mouth with your fingers. B) reopening the airway and reattempting to ventilate. C) performing 30 chest compressions and reassessing. D) administering 15 subdiaphragmatic thrusts at once.
The most abundant molecules in the plasma membrane are ________.
A. phospholipids B. glycolipids C. cholesterol molecules D. proteins E. prostaglandins