________ is essential for muscle contraction, nerve transmission, and blood clotting.
A. Aldolase
B. Creatine phosphatase
C. Calcium
D. Lactic dehydrogenase
Answer: C
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People with a family history of chronic rheumatoid arthritis are ________ times more likely to develop the disease than other people
a. four b. three c. seven d. ten
Which structure connects the lateral ventricles with the third ventricle?
a. Cerebral aqueduct b. Interventricular foramina c. Atrium d. Choroid plexus
You are by the side of a patient who states that he thinks he has a kidney stone. After assessing the patient, which of the following would force you to consider another cause of the patient's pain?
A) Blood in the urine B) Frequent urge to urinate C) Tearing pain in the abdomen D) Flank pain that radiates into the groin
The recommended vertical angulation for exposing a maxillary incisor periapical radiograph
using the bisecting technique is: a. +20 degrees b. +30 degrees c. +40 degrees d. +45 degrees