NEET2002ZoologyChemical Coordination and IntegrationActual
Adrenalin directly affects:
Options
- ASA node
- Bcells of Langerhans
- Cdorsal root of spinal cord
- Depithelial cells of stomach
Correct answer
A. SA node
Step-by-step solution
Adrenaline prepares the body for emergency reactions like fight and flight. Therefore, it directly affects the SA node to increase the rate of heart beat. Related Theory Adrenaline is a hormone released from the adrenal glands and together with noradrenaline, is to prepare the body for 'fight or flight'.