Surgical First Assistant Study Guide Questions and Answers -2024 graded A+

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 The normal pH of blood is: A. 3.5-4.5 B. 7.3-7.4 C. 8.5-9.0 D. 9.5-10.5 -Correct Answer B. 7.3-7.4 Which cells secrete pepsinogen? A. Islands of Langerhans B. Beta C. Chief D. Parietal -Correct Answer C. Chief Which of the following veins drains the intracranial venous sinuses to veins on the outside of the skull? A. Emissary B. Middle cerebral C. Cerebellar Veins D. Radial Veins -Correct Answer A. Emissary Which of the following arteries supplies blood to the brain? A. Anterior and middle cerebral arteries B. Vertebral and internal carotids C. External and internal carotids D. Occipital -Correct Answer B. Vertebral and internal carotids Which of the following arteries divides into the anterior and middle cerebral arteries? A. Internal carotid B. External carotid C. Vertebral D. Basilar -Correct Answer A. Internal carotid Which of the following arteries is a direct branch of the internal carotid? A. Vertebral B. Aorta C. Middle cerebral D. Facial -Correct Answer C. Middle cerebral The lateral ventricles within the cerebral hemisphere communicate with the third ventricle through the opening called: A. Foramen of Monro B. Foramen Ovale C. Foramen of Vesalius D. Foramen Magnum -Correct Answer A. Foramen of Monro The third ventricle of the brain empties into the fourth ventricle through the: A. Aqueduct of Sylvius B. Choroid plexuses C. Foramen venosum D. Foramen spinosum -Correct Answer A. Aqueduct of Sylvius Spinal fluid is produced by the: A. Choroid plexus B. Lateral ventricle C. Dura mater D. Cerebrum -Correct Answer A. Choroid plexus The fold of dura mater that separates the cerebral hemispheres: A. Flax cerebri B. Tentorium cerebelli C. Central sulcus D. Circular sulcus -Correct Answer A. Flax cerebri Which of the following separates the frontal and the temporal lobes? A. Fissure of Sylvius B. Fissure of Rolando C. Fissure of Bichat D. Longitudinal Fissure -Correct Answer A. Fissure of Sylvius