Match the definitions in questions 4-10 with the mast cell mediator (A-G) that most closely matches it
A. Histamine
B. Tryptase
C. Prostaglandin D2
D. Leukotriene C4
E. Platelet-activating factor
F. Interleukin-5
G. Tumor necrosis factor-?Membrane phospholipid derivative that causes bronchoconstriction, retraction of endothelial cells, and relaxation of vascular smooth muscle
ANS: E. Platelet-activating factor (PAF) is synthesized after mast cell activation by acylation of a membrane phospholipid derivative; it acts on bronchial smooth muscle cells and endothelial cells. Genetic deficiency of an enzyme that inactivates PAF is associated with asthma.
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When calculating dosages for children, you should remember that ____.
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A permanent shortening of a muscle that causes a joint to remain in an abnormally flexed position, with resultant physical deformity, is known as a contracture
Indicate whether the statement is true or false
Removal of the entire uterus:?
A) hysterectomy B) panhysterectomy C) salpingectomy D)salpingotomy
Franco is a 10-year-old child of alcoholic parents. He copes by being the family clown, always providing comic relief in a difficult situation. What role is he assuming?
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