While performing auscultation of the heart sounds, what does S2 signify within the hearts contraction?
a. Pulmonic and aortic valve closing
b. Pulmonic and aortic valve opening
c. Tricuspid and mitral valve closing
d. Tricuspid and mitral valve opening
Answer: a. Pulmonic and aortic valve closing
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The word root for horny tissue or hard is lacrim.
Answer the following statement true (T) or false (F)
The EMT shows she understands the concept of the mammalian diving reflex by stating:
A) "It is a protective mechanism that occurs when the spinal column is compressed as would occur in a diving accident." B) "It occurs in warm water and serves to increase blood flow to the vital organs." C) "It may provide benefit to the patient by diverting oxygen-rich blood to the brain and heart." D) "It occurs in cold water and increases the activity of the vital organs, thus protecting them."
The goal of ________ ________ is to keep organisms from entering the body.
Fill in the blank(s) with the appropriate word(s).
The general shift rule-of-thumb requires a shift in the centering of 1 inch for every ___________ ° of beam angle. When a caudal angle is added, the CR must be shifted in the ____________ direction.
A. 5; caudal B. 5; cephalad C. 10; caudal D. 10; cephalad