answers: muscles
context: a prey species. The fight-or-flight response involves nervous impulses which result in hormone secretions into the bloodstream. When a horse reacts to a threat, it may initially "freeze" in preparation to take flight. The fight-or-flight reaction begins in the brain amygdala, which triggers a neural response in the hypothalamus. The initial reaction is followed by activation of the pituitary gland and secretion of the hormone ACTH. The adrenal gland is activated almost simultaneously and releases the neurotransmitters epinephrine (adrenaline) and norepinephrine (noradrenaline). The release of chemical messengers results in the production of the hormone cortisol, which increases blood pressure and </s> teams, various lizardmen types), guests of allied races (e.g. trolls in orc and goblin teams), exotic or monstrous units (e.g. ghouls, wights and mummies in undead teams), and specialists of different roles (usually some combination of Blockers, Blitzers, Throwers, Catchers, Runners and Linemen). Teams can include any number of players of the most basic type (usually Linemen), while the stronger units are limited to 1, 2, 4 or 6 per team. In league play, players gain additional skills and abilities based on their accumulation of experience points. Players face potential injury or even death on the field throughout their careers. </s> air to all of the cells of the body, and venous blood carries carbon dioxide, a waste product of metabolism by cells, to the lungs to be exhaled. However, one exception includes pulmonary arteries, which contain the most deoxygenated blood in the body, while the pulmonary veins contain oxygenated blood. Additional return flow may be generated by the movement of skeletal muscles, which can compress veins and push blood through the valves in veins toward the right atrium. The blood circulation was famously described by William Harvey in 1628. In vertebrates, the various cells of blood are made in the
question: where does blood go during fight or flight