IB SEHS Topic 2 Exam Questions Answered Correctly Latest

IB SEHS Topic 2 Exam Questions Answered Correctly Latest Inhaling: Volume of thorax - Answers increases Inhaling: Diaphragm muscle - Answers contracts Inhaling: Movement of diaphragm - Answers Flattens pushing digestive organs down Inhaling: External coastal muscles - Answers contract and expand Inhaling: Rib cage movement - Answers upward and outwrd Inhaling: pressure in chest cavity - Answers Decreases below atmospheric pressure Inhaling: Movement of air - Answers into the lungs Exhaling: Volume of thorax - Answers decreases Exhaling: diaphragm muscle - Answers relaxes (dm) Exhaling: movement of diaphragm - Answers relaxes and resumes to dome shape Exhaling: external intercostal muscles - Answers relaxes (eim) Exhaling: rib cage movement - Answers inward and downward Exhaling: Pressure in chest cavity - Answers increases above atmospheric pressure Exhaling: movement of air - Answers Air is forced out of the lungs Pulmonary ventilation - Answers Inflow and outflow of air between the atmosphere and the lungs (also called breathing) Pulmonary ventilation equation - Answers Tidal volume x breathing rate Total Lung capacity (TLC) - Answers Total amount of air that the lungs can hold, the volume of air in the lungs after inspiration TLC Equation - Answers TV + ERV + IRV + RV Vital capacity (VC) - Answers Maximum volume of air that can be exhaled after a maximum inhalation VC equation - Answers ERV + TV + IRV Tidal volume (TV) - Answers volume breathed in and out in any one breath Expiratory Reserve Volume (ERV) - Answers volume of air in access of tidal volume that can be exhaled forcibly Inspiratory reserve volume (IRV) - Answers Additional inspired air over and above tidal volume Residual volume (RV) - Answers Volume of air still contained in the lungs after an maximal exhalation Minute ventilation - Answers amount of air moved in or out of the lungs per minute Minute ventilation equation - Answers TV x Breathing rate Spirometer - Answers a device that measures the volume of gas entering or leaving the mouth, changes in lung volume, and vital capacity Anaerobic threshold - Answers point at which lactic acid starts being produced