What is the role of the nervous system in heartbeat regulation?

HEART RATE IS CONTROLLED BY THE TWO BRANCHES OF THE AUTONOMIC (INVOLUNTARY) NERVOUS SYSTEM.THE SYMPATHETIC NERVOUS SYSTEM (SNS) AND THE PARASYMPATHETIC NERVOUS SYSTEM (PNS).THE SYMPATHETIC NERVOUS SYSTEM RELEASES THE HORMONES (CATECHOLAMINES-EPINEPHRINE AND NOREPINEPHRINE) TO ACCELERATE THE HEART RATE

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.