The first line of defense is innate (natural) immunity. Which is part of that protective mechanism against the external environment? (Select all that apply.)
a. Skin and mucous membranes
b. Lungs
c. Heart
d. Tears and saliva
e. Natural intestinal and vaginal flora
f. Stomach acid
A, D, E, F
The innate system is composed of the skin and mucous membranes, cilia, stomach acid, tears, saliva, sebaceous glands, and secretions and flora of the intestine and vagina. These organs, tissues, and secretions provide biochemical and physical barriers to disease.
You might also like to view...
Clubbing of the nails occurs with which of the following clinical conditions?
a. iron deficiency ane-mia c. infection of the nail b. acute severe anemia d. long-standing hypoxia
What causes infectious mononucleosis?
A) Treponema pallidum B) Epstein-Barr virus C) Microsporum canis D) Streptococcal bacterium
A client with pneumothorax is admitted to a healthcare facility. What intervention should the assigned nurse perform when caring for the client with pneumothorax?
A) Initiate lifesaving measures such as cardiopulmonary resuscitation (CPR). B) Check for signs of inhalation injuries. C) Place ice packs on the forehead. D) Seal wound using petroleum jelly gauze.
Bradycardia is
A) a slow pulse. B) a normal pulse rate. C) a fast pulse. D) an irregular heart rate.