Basophils of the blood help to get defensive leukocytes to the site quickly by releasing an anticoagulant called ________ and a vasodilator called ________
A) prostaglandins; selectin
B) heparin; histamine
C) histamine; heparin
D) selectin; prostaglandin
E) bradykinin; histamine
B
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The greater the compliance the
A. more easily the vessel wall stretches. B. higher the blood pressure will be. C. longer the blood vessel will measure. D. less the elasticity of the vessel. E. greater the resistance generated in the vessel.
Which of the following people would have the greatest risk of getting skin cancer?
A. A 31-year old dark-skinned male B. A 23-year old female with blond hair and hazel eyes C. A 55-year old male with brown hair and brown eyes D. A 68-year old male with blond hair and blue eyes
Each of the receiving chambers of the heart has a wrinkled flaplike extension; the one that is more visible from an anterior view is the
A. left auricle. B. interventricular septum. C. right auricle. D. interatrial septum.
A weak base will accept many hydrogen ions, while a strong base will accept only a few hydrogen ions.
Answer the following statement true (T) or false (F)