One of the following nerves inhibit the rate of heart beat `:-`

In which the following can increase the rate of heart beat ? (A) Sympathetic neaural signals. (B) Parasympathetic neural signals (C ) Adrenal medullary hormones. (9 ) Vagus nerve (E ) Thyroxine hormone (F) Acetylcholine

In which the following can increase the rate of heart beat ? ltbr. (A) Sympathetic neaural signals. (B) Parasympathetic neural signals (C ) Adrenal medullary hormones. (9 ) Vagus nerve (E ) Thyroxine hormone (F) Acetylcholine

Which of the following decreases the heart beat?

How is the rate of heart beat controlled ?

Fill in the blanks: .....nerve fibres increase the rate of heart beat

Which one regulates heart beat?

Which one regulates heart beat?