Adrenergic nervous system

Adrenergic system or Adrenergic nervous system (ANS) is a group of organs and nerves in which adrenaline (epinephrine) and/or noradrenaline (norepinephrine) act as neurotransmitters. ANS is counted as one of the main neurohormonal systems that regulate cardiovascular function, including smooth muscle tone.^[1]

Components

Peripherial adrenergic nervous system consists of three main following components:^[2]

• The sympathetic nervous system (SNS) comprises the autonomic outflow from the thoracic and high lumbar segments of the spinal cord;
• The parasympathetic nervous system (PNS) includes the outflow from the cranial nerves and the low lumbar and sacral spinal cord
• The enteric nervous system (ENS) are intrinsic neurons in the wall of the gut.

References