Question

1. which of the following is not a form of arteriosclerosis?

○ hypotensive
○ moenckeberg medial
○ nodular form
○ retinal obliterans

1. a defect in the sinoatrial node is most likely to result in a/an:

○ arrhythmia
○ cardiomyopathy
○ endocarditis
○ myocardial infarction

Explanation:

Question 66

Arteriosclerosis has forms like Moenckeberg medial (medial calcific sclerosis), nodular form, and retinal obliterans (related to arterial changes in retina). Hypotensive refers to low blood pressure, not a form of arteriosclerosis.

The sinoatrial (SA) node is the heart's natural pacemaker. A defect here disrupts normal electrical signaling, leading to arrhythmia (abnormal heart rhythm). Cardiomyopathy is heart muscle disease, endocarditis is heart lining infection, myocardial infarction is heart attack (usually from blocked arteries), not directly from SA node defect.

Answer:

hypotensive

Question 67