Which of these muscles is used during forced expiration?
A) diaphragm
B) external intercostals
C) internal intercostals
D) scalenes
E) trapezius
Answer: C) internal intercostals
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You have just eaten a meal high in complex carbohydrates. Which of the following enzymes will help to digest the meal?
A) gastrin B) amylase C) cholecystokinin D) trypsin
Tubular load refers to the amount of a given substance that
A. can be actively reabsorbed from the filtrate. B. is present in the blood as it enters the afferent arteriole of the nephron. C. can be secreted into the filtrate. D. passes through the filtration membrane into the nephron each minute. E. None of the choices are correct.
In the diagram, where is the osteon?
a) A b) B c) C d) D e) E
Which imaging technique is most commonly used to view a fetus in utero?
A. Positron emission tomography (PET) B. Sonography C. Magnetic resonance imaging (MRI) D. Radiography E. Computed tomography (CT)