Describe the functions of the endocrine system and how this process differs from direct neural stimulation

Question

What will be an ideal response?

Answer 1

The endocrine system is a system of organs and glands that secrete hormones into our blood stream that act as biochemical messengers to their respective target cells and organs. Upon reaching these targets, these hormonal messengers regulate activity of the cells they affect. Since the process requires the circulatory system to deliver the message to target cells, it is much slower than the almost instantaneous direct neural transmission to the target organs. However, once hormones reach their targets, their overall effect is sustained until these molecules are metabolized by the body. Whereas direct neural stimulation can be likened to the speed and shorter duration of a sprinter, hormonal action can be likened to the slower but longer term endurance of a long-distance runner. Each has its advantages and disadvantages. During the fight-or-flight response the endocrine system and the sympathetic nervous system work as somewhat redundant systems to synergistically achieve a common outcome.