Here are some surprising âfight-or-fightâ triggers to avoid. As a species, we are tribal people, so from a survival perspective, being alone too much can signal the amygdala to trigger stress responses.
The spinal cord is connected to the brain by the brain stem. The medulla oblongata connects the spinal cord to other structures in the brain stem and the brain proper. The brain stem is responsible for some the most basic processes of survival, including the control of hunger, thirst, blood pressure, body temperature and breathing. Continue Reading.
1 all the motor axons pass into the ventral roots before uniting with the sensory axons to form the mixed nerves. 2  It connects a large part of the peripheral nervous system to the brain. 3  Information (nerve impulses) reaching the spinal cord through sensory neurons are transmitted up into the brain. Information (nerve impulses) reaching the spinal cord through sensory neurons are transmitted up into the brain. 2  Signals arising in the motor areas of the brain travel back down the cord and leave in the motor neurons.