The fight or flight actually has nothing to do with the vertebra at all. The Autonomic and Somatic Nervous systems which are included in the Peripheral Nervous system completely control the Fight or Flight response. The Autonomic controls all the nerves of all Voluntary Functions of the body and the Somatic controls the Non-Voluntary functions. The situation that activates this response is registered in the brain which sends signals to specific parts of the brain which are all included in the Central Nervous System or CNS. Such as, the Frontal lobe which would contain all logical thought processes in decision making as well as coordination. The Parietal Lobe which all senses and perception of the situations around you and so on through all Four Major Lobes. The CNS sends signals to the PNS which is divided. All signals from the frontal lobe would be sent to the Autonomic Nervous System because your thought process as well as being able to coordinate running or hiding is voluntary. The functions of the Parietal lobe would be sent to the somatic nervous system because it contains functions that do not require thought process such as breathing, increase in adrenaline and Pupil dialation.
The Sympathetic nervous system
Sympathetic Nervous System
parasympathetic nervous system.....
The resting and digesting division of the autonomic nervous system is the parasympathetic division. Resting and digesting is also referred to as feed and breed.
The parasympathetic division of the central nervous system
The division of the autonomic nervous system that arises from spinal nerves T1 to L3 is the sympathetic division. This division is responsible for controlling involuntary body functions.
The resting and digesting division of the autonomic nervous system is the parasympathetic division. Resting and digesting is also referred to as feed and breed.
respiratory system /\ The sympathetic division of the autonomic nervous system. The sympathetic nervous system accelerates functions such as heart rate and breathing.
The sympathetic (fight or flight) system.
Sympathetic division or fight-or-flight system
Parasympathetic
fight or flight response
Sympathetic division.
The sympathetic division of your autonomic nervous system (ANS) increases the activity of most bodily systems excepting the digestive and urinary. The layman's term for the sympathetic nervous system is the "fight-or-flight" nervous system. The parasympathetic nervous system is the other division of the ANS and is termed the "rest and digest" nervous system.