First Assistant Study Guide EXAM VERSION 2026/2027 72pages

Lymph channels run parallel to which structures? A. Nerves B. Veins C. Arteries D. Ligaments - CORRECT ANSWER B. Veins Body temperature is regulated by the: A. Pons B. Cerebellum C. Midbrain D. Hypothalamus - CORRECT ANSWER D. Hypothalamus Which two electrolytes are essential for normal cardiac contractions? A. Phosphate and chloride B. Magnesium and sodium C. Bicarbonate and sulfate D. Potassium and calcium - CORRECT ANSWER D. Potassium and calcium Water constitutes what average normal percentage of total body weight? A. 20% to 40% B. 50% to 70% C. 70% to 85% D. 15% to 25% - CORRECT ANSWER B. 50% to 70% The thyroid gland consists of right and left lobes joined by the: A. Larynx B. Isthmus C. Parathyroid gland D. Cricoid cartilage - CORRECT ANSWER B. Isthmus Langer lines generally lie perpendicular to the direction of: A. Skin folds B. Underlying muscle tension C. A midline incision D. Movement of the bone joints - CORRECT ANSWER B. Underlying muscle tension The arterial supply to the intestinal tract, with the exception of the stomach, duodenum, and distal rectum, is derived from the: A. Superior and inferior mesenteric arteries B. Cystic artery C. Gastroduodenal artery D. Hepatic artery - CORRECT ANSWER A. Superior and inferior mesenteric arteries Excessive secretion of growth hormones in adults causes: A. Splenomegaly B. Acromegaly C. Cardiomegaly D. Hepatomegaly - CORRECT ANSWER B. Acromegaly The inner lining of the mucosa of the gastrointestinal tract is composed of: A. Smooth muscle B. Areolar connective tissue C. Epithelium D. Elastic connective tissue - CORRECT ANSWER C. Epithelium The large artery that arises from the left side of the aortic arch and descends into the arm is the: A. Subclavian B. Carotid C. Brachiocephalic D. Radial - CORRECT ANSWER A. Subclavian An enzyme active in the digestive of starches is. A. Amylase B. Trypsin C. Lipase D. Lactase - CORRECT ANSWER A. Amylase