A person who has a tidal volume of 400 ml, a respiratory rate of 14, and an anatomic dead space volume of 150 ml will have an alveolar ventilation rate of
a. 3,500 ml/minute
b. 3,920 ml/minute
c. 4,260 ml/minute
d. 5,600 ml/minute
e. 6,240 ml/minute
A
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It is the ________ that permits the compression necessary to pump large volumes of blood out of the ventricles.
A. arrangement of cardiac muscle in the heart wall B. presence of skeletal muscle tissue in the heart skeleton C. negative pressure inside the ventricles D. presence of papillary muscles in the ventricles E. absence of oxygenated blood in the atria
Angina is often felt in the upper left chest and arm because
A) these are the first areas to be injured when a person has a heart attack. B) the pain is "referred" to the corresponding region of the primary sensory cortex. C) muscles in this area work harder during a heart attack and become sore from fatigue. D) the tissues in these regions are damaged or diseased. E) None of the answers are correct.
Essential amino acids are produced by the body as needed.?
Indicate whether the statement is true or false
Which of the following muscles flexes the knee?
A. Soleus B. Gluteus maximus C. Rectus femoris D. Iliopsoas E. Semimembranosus