Tear gland: The gland that makes tears. An abnormality of the tear glands can impair the production of the tears and lead to dry eyes.Also called a lacrimal gland.ear gland: The gland that makes tears. An abnormality of the tear glands can impair the production of the tears and lead to dry eyes.
Answer: Left Axis Deviation (LAD) refers to the pattern of electrical activation that occurs in the heart. LAD is an EKG-specific finding and not necessarily indicative of any specific cardiovascular condition. In fact, LAD is the most common EKG abnormality observed in adults, occurring in almost 10% of the adult population.
1 Lead I = positive. 2  Lead aVF = negative. 3  This puts the axis in the left upper quadrant, between 0 and -90 degrees, i.e. normal or LAD. 4  Lead II is neither positive nor negative (isoelectric), indicating borderline LAD.