Cardiac Physiology Past Paper PDF

Cardiac physiology *choose the correct : 1-the normal heart rate… a-50/min b-70/min c-120/min d-150/min 2-the heart rate during excrcises… a-50/min b-100/min c-120/min d-150/min 3-the heart rate…. a-70/s...

Cardiac physiology *choose the correct : 1-the normal heart rate… a-50/min b-70/min c-120/min d-150/min 2-the heart rate during excrcises… a-50/min b-100/min c-120/min d-150/min 3-the heart rate…. a-70/sec b-70/min c-70/hour d-70/day 4-cardiac output….. a-5 l/sec b-5 l/min c-5 l/day d-5 l/hour 5-heart muscle… a-syncytium b-smooth muscle c-syncytium and smooth muscle d-all of the above 6-blood flows in the following order… a-right atria,right ventricle,lungs,left atria,left ventricle,rest of the body b- right atria,left ventricle,left atria,right ventricle,lungs,rest of the body 7-action potential… a-AVnode b-SAnode c-A and B c-fast excirable 8-phase 4 represence… a-unstable resting membrane potential b-stable resting membrane potential c-polarization d-depolarization 9-phase 4 is caused by a-fast Na+ entry b-fast Ca+2 entry c-K+ efflux d-slow Na+ and Ca+2 entry 10-phase 0 represence… a-polerization b-depoleriation c-unstable resting membrane potential d-stable resting membrane potential 11-phase 0 is caused by.. a-fast Na+ entry b-fast Ca+2 entry c-A and B d-slow Na+ and Ca+2 entry 12-phase 3 represence… a-repolerization b-depolerization c-unstable resting membrane potential d-stable resting membrane potential 13-phase 3 caused by… a-fast Na+ entry b-fast Ca+2 entry c-K+ efflux d-slow Na+ and Ca+2 entry 14-action potential… a-AVnode b-SAnode c-A and B d-fast exeriable call 15-phase 4 represence… a-resting membrane potential depolarization b-unresting membrane potential polarization 16-phase 0 represence.. a-polerization b-depoleriation c- resting membrane potential d-unresting membrane potential 17-phase 0 is caused by.. a-fast Na+ entry b-fast Ca+2 entry c-A and B d- K+ efflux 18- phase 1 is caused by.. a-closure Na+ channels b-open Na+ channels c-closure K+ channels d-open K+ channels 19-phase 2 represence.. a-plalaau b-depolerization c-repoleriation d-polerization 20-phase 2 is caused by.. a-closure Na+ channels b-slow Ca+ channels c-closure Ca+ channels d-open Na+ channels 21-Heart rate contracts in the following orders… a-SAnode,AVnode,bundle of his,purkinje fibers b-SAnode, bundle of his,AVnode,purkinje fibers c-AVnode,SAnode, bundle of his,purkinje fibers d-SAnode,AVnode, purkinje fibers, bundle of his 22-P-wave represence… a-depolerization of atria b-repolerization c-polerization d-repolerization of atria 23-QRS complex represence.. a-depolerization of atria b-repolerization of atria c-depolerization of ventricle d-repolerization of ventricle 24- T-wave represence… a-depolerization of atria b-repolerization of atria c-depolerization of ventricle d-repolerization of ventricle 25-ability to work also after an isolation.. a-automatic (autonomie) function b-conductivity c-excitability d-contractility  ‫تابع المراجعة‬ 1-the repractory phases in excitability… a-systole b-diastole c-alternation systole,diastole d-non of the above 2-ability of myocardial fibers to contract.. a-automatic function b-contractility c-excitability d-conductility 3-regular alternation of contraction and relaxation.. a- excitability b-contractility c-rhythmicity d-conductility 4-increase temperature , the heart activity.. a-increase b-decrease c-stop d-non of the above 5- decrease temperature , the heart activity.. a-increase b-decrease c-stop d-non of the above 6-oxygen in rest consuse… a-10% b-20% c-40% d-50% 7-oxygen during excercises consuse… a-10% b-20% c-40% d-50% 8-decrease or increase of PH , heart rate.. a-decrease b-increase c-stop d-non of the above 9-heart sound.. a-lub-lub b-lub-dub c-dub-lub d-dub-dub 10-lub sound is.. a-closure AV valves b-closure semilunar valves c-opening AV valves d-opening semilunar valves 11- dub sound is.. a-closure AV valves b-closure semilunar valves c-opening AV valves d-opening semilunar valves 12-where the chambers contract and eject the blood out of them.. a-systole b-diastole c-cardiac output d-isovolumetric 13-where the chambers relax allowing them to fill with blood… a-systole b-diastole c-cardiac output d-isovolumetric 14-cardiac output in healthy adult… a-5ml/min b-5ml/l c-5l/sec d-5l/min 15-stroke volume is determined by factors.. a-preload b-afterload c-contractility d-all of the above 16-factors affecting preload are,,, a-blood valume and venous return b-muscle pumpand valves in the vein c-the vasomotor tone d-all of the above 17-factors affecting TPR are.. a-length of the vessel blood b-the viscasity of the blood c-the diameter of the lumen of the vessel d-all the above 18-factors affecting BP are.. a-cardiac output b-blood volume and viscasity c-stroke volume d-A and B  ‫المحاضرة الثالثة‬ 1-…..traps microorganisms from nose and broche a-mucus b-cilia c-hair d-goblet cell e-A,B and C 2-C-cartilage rings is… a-keep the tube open b-keep the tube closed c-keep the tube straight d-A and C 3-one of this which segmen is false about alvoli.. a-it is many layers of cell b-it is a single layer c-it is a moisture layer d-surrounded by blood capillaries 4-pumonary surfactant is.. a-decrease surface tension b-preventing collaps of these structures at end enperation c- A and B d- non of above 5-gas exchange between air and blood… a-external respiration b-internal respiration c-cellular respiration d-non of the above 6- gas exchange between air and blood… a-external respiration b-internal respiration c-cellular respiration d-non of the above 7-process where by organism use oxygen and food to preduce ATP , water and carbon dioxide… a-external respiration b-internal respiration c-cellular respiration d-non of the above 8-during inhalation… a-diaphragm and muscles contraction b- diaphragm and muscles relaxation c- diaphragm contract, muscles relax d- diaphragm relax, muscles contract 9- during exhalation… a-diaphragm and muscles contraction b- diaphragm and muscles relaxation c- diaphragm contract, muscles relax d- diaphragm relax, muscles contract 10-tidal volume in male… a-0.5 L b-1.5 L c-1 L d-2 L 11- tidal volume in female… a-400 ml b-4 ml c-40 ml d-0.4 ml 12-volume of tidal lung capacity is… a-1.5 L% b-1 L% c-5 L% d-0.5 L% 13-viral capacity is… a-35 L b-0.35 L c-3.5 L d-3 L 14-residual air… a-1.5 L% b-5 L% c-15 L% d-0.5 L% 15-most oxygen is transported by… a-hemoglobin b-globin c-plasma d-platelets 16- most carboon is transported by… a-hemoglobin b-globin c-plasma d-platelets 17-oxygen combines with hemoglobin is… a-oxyhemoglobin b-oxymohemoglobin c-oxyglobin d-non of the above 18-one RBC content 250 million of hemoglobin is content oxygen… a-250 million b-250 billion c-1 billion d-non of the above 19-hydrogen ions transported by…. a- hemoglobin b-globin c-plasma d-platelets 20- a small amount of carboon dioxide is transported by the hemoglobin molecules in the form of… a-carboglobin b-carbaminohemoglobin c-carbohemoglobin d- carbaminoglobin True or False :