In which the following has the ability to generate action potential without any external stimuli ?

Read the following statements carefully (i) In fishes, the heart pumps out deoxygenated blood which is oxygenated by the gills and supplied to the body part from where deoxygenated blood is returned to the heart (ii) The openings of the right and the left ventricles into pulmonary artery and aorta respectively are provided with the mitral valves (iii) The nodal musculature has the ability to generate action potential without any external stimuli, i,e., it is autoexcitable (iv) The T-wave of ECG represent depolarisation of the ventricles. Which of the above two statements are incorrect ?

Read the following statements carefully (i) In fishes, the heart pumps out deoxygenated blood which is oxygenated by the gills and supplied to the body parts from where deoxygenated blood is returned to the heart. (ii) The openings of the right and the left ventricle into pulmonary artery and aorta respectively are provided with the mitral valves. (iii) The nodal musculature has the ability to generate action potential without any external stimuli, i,e., it is autoexcitable. (iv) The T-wave of ECG represents depolarisation of the ventricles. Which of the above four statements are incorrect?

Assertion: The nodal musculature has the ability to generate action potentials without any external stimuli, i.e., it is auto-excitable. Reason: The number of action potentials that could be generated in a minute very at different parts of the nodal system.

Read the following statements (i) The nodal musculature of the heart has the ability to generate action potentials without any external stimuli. (ii) The AV node is located in the right ventricle close to the AV septum (iii) The stroke volume is the amount of blood pumped out by each ventricle per minute. Which of these are correct ?

Read the following statements (i) The nodal musculature of the heart has the ability to generate action potentials without any external stimuli. (ii) The AV node is located in the right ventricle close to the AV septum (iii) The stroke volume is the amount of blood pumped out by each ventricle per minute. Which of these are correct ?

Read the following statements (i) The nodal musculature of the heart has the ability to generate action potentials without any external stimuli. (ii) The AV node is located in the right ventricle close to the AV septum (iii) The stroke volume is the amount of blood pumped out by each ventricle per minute. Which of these are correct ?

Read the following statements (i) The nodal musculature of the heart has the ability to generate action potentials without any external stimuli. (ii) The AV node is located in the right ventricle close to the AV septum (iii) The stroke volume is the amount of blood pumped out by each ventricle per minute. Which of these are correct ?

Read the following statements about the internal structure of the human heart. I. Humans have a an auto - excitable , chambered , muscular and myogenic heat. II. The heart is mesodermal in origin and is present symmetrically between two lungs in the thoracic cavity. III. The opening between the right atrium and left ventricle is guarded by a tricuspid valve. IV. Only the sino - atrial node of the heart has hte ability to generate action potentials without any external stimuli. How many statement/s is/ are incorrect from the above ?