During the inhalation phase of breathing:
A: the diaphragm and intercostal muscles contract and ascend.
B: the muscles in between the ribs relax, which lifts the ribs up and out.
C: pressure within the thorax decreases and air is drawn into the lungs.
D: air passively enters the lungs as pressure within the thorax increases.
Answer: C: pressure within the thorax decreases and air is drawn into the lungs.
You might also like to view...
The driver of a truck carrying a radioactive substance has accidentally come into contact with the material. You are first on the scene and a quick observation indicates that he still has the powder on his arm. Your immediate action would be to:
A) provide basic care, but avoid touching the patient's arm. B) place the patient in the ambulance, but avoid touching him en route to the hospital. C) instruct the patient to remain still and wait for the radiation safety officer. D) rinse the powder off the arm and wrap with a sterile dressing and roller gauze.
Express the Arabic numbers in Roman numerals. 30 =
Fill in the blank(s) with the appropriate word(s).
Which of the following is considered the principal diagnosis?
A. The admitting diagnosis B. The condition established after study C. The most complicated diagnosis D. The condition that takes the greatest number of treatments
Restorative materials appear radiopaque or radiolucent
Indicate whether the statement is true or false