The term ptosis refers to: abnormal involuntary eye movements paralysis of the upper eyelid deviation of one or both eyes loss of medial vision in both eyes Question 17 0.25 points Involuntary abnormal movement of one or both eyes is called: hemianopia strabismus nystagnus astigmatism Question 0.25 points 18 Which type of viral hepatitis are associated with an increased risk of hepatocellular carcinoma? Hepatitis A and B Hepatitis B and C Hepatitis A and C Hepatitis B, C and D Question 0.25 points Save 19 Put the following items in the correct order in the development of peptic ulcer disease: Ulcer erodes into muscle layers of stomach wall. The inflamed stomach wall perforates. If erosion invades a blood vessel, bleeding (including massive hemorrhage) occurs. Acid or pepsin penetrates mucosal barrier of stomach lining. Question 0.25 points Save 20 Which of the following microorganisms often plays a role in development of gastric ulcer? Helicobacter H. pylori H. influenzae HPV