Ms. Trejo uses a bronchodilator, a medication that helps her breathe easier during an asthma attack. Explain the impact this medication will have on pulmonary ventilation
What will be an ideal response?
The degree of airway resistance is largely determined by the diameter of the bronchiole passageways. The bronchodilator medication Ms. Trejo takes will decrease airway resistance by dilating the bronchiole passageways. Relaxation of smooth muscle in the bronchioles increases the size of the bronchiole's lumen (opening). This will better allow the passage of air in and out of the lungs and make it easier to breathe.
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Indicate whether the statement is true or false
Endocrine glands release their hormones into the blood via a duct system.
Answer the following statement true (T) or false (F)
The superior portion of the esophagus contains smooth muscle in its wall.
Answer the following statement true (T) or false (F)
Which of the following statements about humoral immunity is false?
A. Humoral immunity is also called cell-mediated immunity. B. Humoral immunity begins when an APC in lymphoid tissue displays an epitope from its environment on an MHC protein. C. Plasma B cells produce specific antibodies. D. Humoral immunity involves B cells making antibodies.