This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physical Education Chapter 9 Physiology And Exercise – Quiz 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 20 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which part of the intrinsic conduction system is known as the "pacemaker" of the heart? A) Atrioventricular (AV) node. B) Bundles of His. C) Purkinje fibers. D) Sinoatrial (SA) node. Show Answer Correct Answer: D) Sinoatrial (SA) node. 2. When a cell is filled with potassium and is exchanged with sodium, this is process is labeled as ..... ? A) Polarization. B) Depolarization. C) Repolarization. D) Hyperpolarization. Show Answer Correct Answer: B) Depolarization. 3. The skin covers the body and regulates temperature when you sweat. A) Anatomy. B) Physiology. C) Both. D) None of the Above. Show Answer Correct Answer: C) Both. 4. Which of the following statements regarding heart failure with normal ejection fraction (HFNEF) is FALSE? A) Response to medical therapy does not predict prognosis in patients with HFNEF. B) A possible cause of HFNEF includes an abnormal coupling between the LV and the arterial circulation. C) LV diastolic dysfunction is a primary cause of HFNEF. D) The severity and response to medical therapy are key factors that establish exercise tolerance. Show Answer Correct Answer: A) Response to medical therapy does not predict prognosis in patients with HFNEF. 5. An electrocardiogram measures what? A) The amount of pressure exerted on blood vessels. B) The electrical activity of the heart. C) How many times the heart contracts over time. D) The body's temperature caused by friction of blood in vessel. Show Answer Correct Answer: B) The electrical activity of the heart. 6. What is located between the wall of blood vessels and the bloodstream? A) Endothelium. B) Endocrine. C) Skin. D) Myokines. Show Answer Correct Answer: A) Endothelium. 7. Which one of these is the long term effect of exercise on cardio vascular system? A) Increase in heart rate. B) Increase in body tempreture. C) Increase in cardiac output. D) Increase in blood pressure. Show Answer Correct Answer: C) Increase in cardiac output. 8. Which part of the Respiratory System collects air from the environment & heats/moistens the air before entering the body? A) The mouth. B) The trachea. C) The nose. D) The lungs. Show Answer Correct Answer: C) The nose. 9. Ovulation is caused by a sudden increase in the secretion of which of the following hormones? A) Estrogen. B) FSH. C) LH. D) Progesterone. Show Answer Correct Answer: C) LH. 10. What is called as proximal in our body? A) Upper parts. B) Away from mid-line/trunk of our body. C) Closer to the trunk of our body. D) Central part of the body. Show Answer Correct Answer: C) Closer to the trunk of our body. 11. The electrical activity developed in a muscle or nerve cell during activity or depolarisation is called A) Resting membrane potential. B) Action potential. C) Motor contraction. D) All. Show Answer Correct Answer: B) Action potential. 12. The common passage for both digestive and respiratory tract is called A) Larynx. B) Pharynx. C) Nasal cavity. D) Nasal septum. Show Answer Correct Answer: B) Pharynx. 13. Which equation is used to find Q? A) Heart Rate X Cardiac Output. B) Cardiac Output X Stroke Volume. C) Stroke Volume + Lung Capacity. D) Cardiac Output-Stroke Volume. E) Heart Rate X Stroke Volume. Show Answer Correct Answer: E) Heart Rate X Stroke Volume. 14. The air-filled spaces that surround the nasal cavity are called A) Para nasal septum. B) Para nasal cavity. C) Para nasal sinus. D) Para nasal vacuoles. Show Answer Correct Answer: C) Para nasal sinus. 15. When the shaft is cut in the middle, the hollow space seen is called A) Periosteum. B) Epiphyseal line. C) Medullary cavity. D) Metaphysis. Show Answer Correct Answer: C) Medullary cavity. 16. What is true about lactate production and training? During submaximal exercise, trained individuals have: A) Trained individuals have higher lactate production. B) Trained individuals have lower lactate production. C) There is no change in lactate production based on training. D) Untrained individuals have lower lactate production. Show Answer Correct Answer: B) Trained individuals have lower lactate production. 17. What are the units of shear rate? A) Seconds (s). B) It's a dimensionless quantity. C) Inverse of seconds (1/s). D) Cm/s. Show Answer Correct Answer: C) Inverse of seconds (1/s). 18. When are your ribs and internal intercostal muscles used as a part of the breathing process? A) When a person is asleep. B) When a person is breathing normally at rest. C) When a person is forcing their breathing in or out. D) When a person is exercising. E) When a person is pressing on a heavy amount of weight. Show Answer Correct Answer: C) When a person is forcing their breathing in or out. 19. What is the name of the protein myofilament that pulls the actin towards the center of the Sarcomere? A) Fascicle. B) Actin. C) Myosin. D) Titin. Show Answer Correct Answer: C) Myosin. 20. During ventricular ejection A) Only the AV valves open. B) The semilunar valves open and the AV valves close. C) Only the semilunar valves close. D) The semilunar valves close and the AV valves open. Show Answer Correct Answer: B) The semilunar valves open and the AV valves close. 21. Which of the following is NOT a function of digestive system? A) TAKE IN FOOD. B) BREAKDOWN FOOD. C) SERVE FOOD. D) ABSORB DIGESTIVE MATERIAL. Show Answer Correct Answer: C) SERVE FOOD. 22. Upper respiratory tract has different organs in it. Which one of the following is not a part of URT? A) Nasal cavity. B) Pharynx. C) Larynx. D) Trachea. Show Answer Correct Answer: D) Trachea. 23. Which of the following cranial nerves is not responsible for eye movement? A) Abducens. B) Oculomotor. C) Optic. D) Trochlear. Show Answer Correct Answer: C) Optic. 24. Which of the following is the main measure to prevent sports injuries? A) Proper sports facility. B) Proper warming up. C) Food. D) Knowledge of technique. Show Answer Correct Answer: B) Proper warming up. 25. Which one of the following is not lymphoidal organ? A) Thymus. B) Liver. C) Spleen. D) Tonsils. Show Answer Correct Answer: B) Liver. ← PreviousNext →Related QuizzesClass 12 Physical Education Chapter 9 Physiology And Exercise Quiz 1Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 2Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 3Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 4Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 5Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 6Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 7Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 8Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 9Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books