ANATOMY

Detailed explanation-1: -The spinal nerves have both sensory and motor components. The autonomic system, a complex subset of the peripheral nervous system, controls involuntary activities, such as heart rate, temperature, and the smooth muscle activity of the vascular and digestive systems.

Detailed explanation-2: -Involuntary actions as their name suggest, are total opposites of voluntary actions, a reflex action is not under the control of the will. In this case, your spinal cord takes total control, without your own conscious.

Detailed explanation-3: -The brain stem is an automatic control center for many such important involuntary actions of the body. And, it is a pathway for impulses travelling back and forth between the body and the rest of the brain.

Detailed explanation-4: -Spinal Cord is the center that controls reflex action. Reflex actions are actions that are carried out quickly in response to a stimulus and thus do not involve any thinking, and thus are under the control of spinal cord.

Detailed explanation-5: -Motor Functions-directs your body’s voluntary muscle movements. Sensory Functions – monitors sensation of touch, pressure, temperature and pain. Autonomic Functions – regulates digestion, urination, body temperature, heart rate, and dilation/contraction of blood vessels (blood pressure).