GENERAL HISTOLOGY

Detailed explanation-1: -Smooth muscles-sometimes also called involuntary muscles-are usually in sheets, or layers, with one layer of muscle behind the other. You can’t control this type of muscle. Your brain and body tell these muscles what to do without you even thinking about it.

Detailed explanation-2: -The brain controls the heart directly through the sympathetic and parasympathetic branches of the autonomic nervous system, which consists of multi-synaptic pathways from myocardial cells back to peripheral ganglionic neurons and further to central preganglionic and premotor neurons.

Detailed explanation-3: -The brain controls what you think and feel, how you learn and remember, and the way you move and talk. But it also controls things you’re less aware of-like the beating of your heart and the digestion of your food. Think of the brain as a central computer that controls all the body’s functions.