In a collision, a force acts upon an object for a given amount of time to change the object's velocity. The product of force and time is known as impulse. The product of mass â¦ and velocity change is known as momentum change. In a collision the impulse encountered by an object is equal to the momentum change it experiences.Impulse = Momentum Change.
In addition to the locus coeruleus existing as a source of the neurotransmitter norepinephrine within the central nervous system, the adrenal gland can also release norepinephrine during a stress response into the bodyâs blood stream, at which point norepinephrine acts as a hormone in the endocrine system.
Your brainâs remarkable hypothalamus also sends signals to your pituitary gland at the bottom of your brain, telling it to release factors that within a few minutes have travelled through your blood stream and stimulated your adrenal cortex to produce a stress hormone â cortisol.ong-term effects of stress. Your bodyâs stress response is perfect in the short-term, but damaging if it goes on for weeks or years. Raised levels of cortisol for prolonged periods can damp down your immune system and decrease the number of brain cells so impairing your memory.