Anatomy I Examination Respiratory, Embryology And Histology

ANATOMY I EXAMINATIONRespiratory & Gastrointestinal Systems, Embryology & HistologyTime Allowed: 3 HoursInstructions:- Section A: Answer ALL questions- Section B: Answer ANY FOUR questionsSECTION A: Multiple Choice Questions (30 marks)1. The primary function of the respiratory system is to:A. Regulate body temperatureB. Exchange gasesC. Digest foodD. Transport nutrients2. Which cartilage keeps the trachea open?A. ElasticB. HyalineC. FibrocartilageD. Calcified3. The main muscle of respiration is:A. Intercostal musclesB. DiaphragmC. Abdominal musclesD. Scalene muscles4. Which part of the lung is involved in gas exchange?A. BronchiB. BronchiolesC. AlveoliD. Trachea5. Type II pneumocytes mainly secrete:A. MucusB. SurfactantC. OxygenD. Carbon dioxide6. The epiglottis prevents food from entering the:A. EsophagusB. PharynxC. LarynxD. Trachea7. The right lung has how many lobes?A. 1B. 2C. 3D. 48. The smallest functional unit of the lung is the:A. LobuleB. AlveolusC. BronchioleD. Acinus9. The respiratory epithelium is mainly:A. Stratified squamousB. Simple cuboidalC. Pseudostratified ciliated columnarD. Simple columnar10. Which nerve supplies the diaphragm?A. Vagus nerveB. Intercostal nervesC. Phrenic nerveD. Sympathetic trunk11. The esophagus passes through the diaphragm at vertebral level:A. T8B. T9C. T10D. T1212. The stomach is mainly supplied by which artery?A. Superior mesentericB. Inferior mesentericC. Celiac trunkD. Hepatic artery13. Which part of the stomach secretes hydrochloric acid?A. CardiaB. FundusC. BodyD. Pylorus14. The longest part