Question

Difference between neurogenic and myogenic heart ??

Explantaion!!!​

Answer 1

Answer:

• Neurogenic heartbeat is initiated by a nerve impulse caused by a nerve ganglion situated near the heart
• whereas myogenic heartbeat is initiated by a specialized group of modified heart muscle fibres.

Answer 2

A N S W E R :

Myogenic Heart :

❍ In " Myogenic Heart ", the constractions are indicated by a special node of modified cardiac muscles called " Sino - Atrial " (SA node).

Examples :

• Hearts of " Vertebrates "

• Hearts of " Tunicates "

• Hearts of " Molluscs "

Neurogenic Heart :

❍ In " Neurogenic Heart ", the contractions are initiated by a nerve ganglion, situated in the vicinity of the heart.

Examples :

• Invertebrates like anthropods (Cockroach)

• Some annelids (Earthworm)

E X T R A I N F O R M A T I O N :

• Acetylcholine secreted by the nerve ending accelerates the newgenic heartbeat.

• In newgenic heart, the heartbeats originate by nervous stimulation.

• If the nerve supply of the hearts of vertebrates is cut off or even removed from the body, it continuous to beat.