Which of these is one of the auditory ossicles?
A) malleus
B) incus
C) stapes
D) All of the answers are correct.
E) None of the answers is correct.
Answer: D
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The normal pacemaker of the heart is the
a. SA node b. AV node c. bundle of His d. Purkinje system e. ventricular myocardium
A 62-year-old woman undergoes a Nissen fundoplication, in which the fundus of the stomach is completely sutured around the gastroesophageal junction, to treat a severe case of gastroesophageal reflux disease (GERD). During the procedure, the surgeon accidentally damages the right (posterior) vagal trunk while inserting staples into the stomach. Which of the following organs is most likely affected?
(A) Esophagus (B) Urinary bladder (C) Descending colon (D) Prostate gland (E) Second part of the duodenum
The area of the brain that plays a major role in water and electrolyte balance is the _______.
A. cerebral cortex B. medulla C. thalamus D. hypothalamus
A functional group is best described as reoccurring clusters of
A) elements that occur in a salt. B) atoms that greatly influence the chemical properties of molecules they are part of. C) atoms that function in the body. D) elements that form at high pH. E) amino acids in a globular protein.