Identify the true statement(s) about peptic ulcers
a. They are usually caused by excessive neural stimulation
b. They are usually caused by bacterial infection
c. They compromise the mucosal barrier and stomach wall
d. Both a and b
e. Both b and c
E
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In an EKG, the T wave denotes
A. closure of the AV valves. B. depolarization of the left ventricle. C. depolarization of the atria. D. repolarization of the ventricles. E. depolarization of the right ventricle.
The parathyroid glands maintain adequate levels of blood calcium. This is accomplished through ________.
A) blocking the action of growth hormone B) targeting the bone and activating osteoclasts so that calcium will be released C) antagonizing the synthesis of calcitonin D) slowing the activity of tissues that require calcium for activity
Which of the following occurs when tension production rises to a peak and very brief periods of relaxation occur?
A) resting period B) latency C) tension plateau D) incomplete tetanus E) complete tetanus
Why would a person have anti-Rh antibodies present in their blood?
A. They are Rh-positive and were exposed to Rh-negative blood. B. An Rh-negative woman is carrying an Rh-positive fetus. C. A person cannot have anti-Rh antibodies in their blood. D. An Rh-positive woman is carrying an Rh-negative fetus.