The sinoatrial (SA) node is located in the ________
A) aorta
B) right atrium
C) left atrium
D) right ventricle
E) interventricular septum
B
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A patient presents with several symptoms, including reflux esophagitis. What is the most likely cause of the reflux esophagitis?
A. Diaphragmatic hernia B. Umbilical hernia C. Inguinal hernia D. Hiatal hernia
Which of the following statements concerning adrenocortical hormones is incorrect?
a. Glucocorticoids are examples. b. Some are steroids. c. Their release is controlled directly by CRH. d. They are secreted from the outer layer of the adrenal gland. e. Aldosterone is an example.
Which of the following is not a function of epithelial tissue?
A. It resists abrasion. B. It absorbs substances. C. It prevents the intrusion of microbes. D. It stores energy. E. It produces specialized secretions.
The olecranon process is part of which bone?
A. Radius B. Humerus C. Ulna D. Fibula E. Femur