A Patient Goes to the Emergency Department Because His Arm

question 6

Multiple Choice

A patient goes to the emergency department because his arm started to swell up after being stung by a wasp. Although it did not happen to this patient, in some individuals the smooth muscles of the bronchioles may undergo prolonged contraction resulting in possible respiratory distress. Which of the following pharmacologic agents released by the cells that possess IgE receptors is responsible for contraction of the bronchiolar smooth muscles?

• A) heparin
• B) chondroitin sulfate
• C) aryl sulfatase
• D) prostaglandin
• E) thromboxane A₂

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Definitions:

Sexual Dimorphism

The distinction between two sexes within the same species, expressed through differences in physical characteristics not directly related to reproductive organs.

Gender Dysphoria

The distress or discomfort that occurs when there is a discrepancy between an individual’s gender identity and the sex they were assigned at birth.

Biological

Pertaining to the science of life or living matter in all its forms and phenomena, especially with reference to origin, growth, reproduction, structure, and behavior.

Sex

A biological classification based on physical differences in genetic composition, reproductive anatomy, and function.