Identify the correct statement regarding cardiac activity

Question

Identify the correct statement regarding cardiac activity (A) Normal activities of the human heart is regulated intrinsically, hence it is neurogenic (B) A special neural centre in the medulla oblongata can moderate the cardiac function through the CNS (C) Parasympathetic neural signals increase the rate of heart beat (D) Adrenal medullary hormones can increase cardiac output

Tardigrade Admin · Accepted Answer

Hormones of adrenal medulla include noradrenaline and adrenaline. Nor-adrenaline regulates blood pressure and cardiac output under normal conditions. Adrenaline is secreted during emergency and has a greater effect on cardiac activity than nor-adrenaline.

Q. Identify the correct statement regarding cardiac activity

Normal activities of the human heart is regulated intrinsically, hence it is neurogenic

A special neural centre in the medulla oblongata can moderate the cardiac function through the CNS

Parasympathetic neural signals increase the rate of heart beat

Adrenal medullary hormones can increase cardiac output

The end of a T-wave marks the end of diastole

Hormones of adrenal medulla include noradrenaline and adrenaline. Nor-adrenaline regulates blood pressure and cardiac output under normal conditions. Adrenaline is secreted during emergency and has a greater effect on cardiac activity than nor-adrenaline.