Question : a. Amphibians and reptiles have a 3 chambered heart with ___atria and ___ventricle. b. heart is ___derived organ and protected by a double walled membranous bag called____ c. The opening between right Atrium and Right ventricle is guarded by a valve formed of ___muscular flaps, the ___valve. d. The wall of ventricle is ____than atria. e. SAN can generate the maximum number of action potential i.e., ____ mi n^(-1). therefore it is called_____ f Atrial systole increases the flow of lood into the ventricles by about ____percent. g. In____ all the four chambers of the heart are in a relax state. h. the ____wave represents the depolarisation of the atria. i. A system of blood vessels is present in our body exlusively for the circulation of blood to and from the cardiac musculature called_____ j. PNA____ the rate of heart beat and______

Question : a. Amphibians and reptiles have a 3 chambered heart with __

1.	Question : a. Amphibians and reptiles have a 3 chambered heart with ___atria and ___ventricle. b. heart is ___derived organ and protected by a double walled membranous bag called____ c. The opening between right Atrium and Right ventricle is guarded by a valve formed of ___muscular flaps, the ___valve. d. The wall of ventricle is ____than atria. e. SAN can generate the maximum number of action potential i.e., ____ mi n^(-1). therefore it is called_____ f Atrial systole increases the flow of lood into the ventricles by about ____percent. g. In____ all the four chambers of the heart are in a relax state. h. the ____wave represents the depolarisation of the atria. i. A system of blood vessels is present in our body exlusively for the circulation of blood to and from the cardiac musculature called_____ j. PNA____ the rate of heart beat and______
Answer» Answer :a. 2,1 b. Mesodermal,Pericardium c. 3,TRICUSPID d. Thicker. e. 72, PACEMAKER F. 30% g. Joint diastole h. P i. Coronary j. Decrease, Cardiac OUTPUT