Nervous System and Norepinephrine in Human Body

The below mentioned article provides a short note on the Role of Nervous System and Norepinephrine in Human Body. (i) Nervous Regulation: Sympathetic nervous system accelerates the heart beat. It constricts arteries that raise blood pressure. Parasympa­thetic nervous system slows heart beat. It dilates arteries and lowers blood pressure. These parasympathetic nerve fibres travel through vagus (X) cranial nerve. Baroreceptors [...]