Circulatory System Research Paper

Nervous System & Circulatory System

Compare and Contrast

Did you know that there are more nerve cells in the human brain than there are stars in the Milky Way, and that the heart beats around 3 billion times in the average person's life? Both of these facts have nothing to do with each other, but are part of very different and similar systems. One is the nervous system, and the other is the circulatory system. The nervous system receives information from your joints, muscles, and skin and sends the message to your brain to help you react, think, remember, and plan. The circulatory system moves blood and regulates temperature of your body. The nervous system consists of two main organs, the brain and the spinal cord. The circulatory

At the root, (part of the lung by the hilum) of each lung is a pulmonary plexus composed of efferent (going in) and afferent (coming out) autonomic nerve fibres. The nerve supply to the lungs is down the bronchial tree, and the majority of the supply is to bronchi and bronchioles, since little signal is given to or from alveoli. This is how the nervous system interacts with the lungs. In the brain there is an area called the pressor centre, in the upper part of the medulla oblongata, and an area called the depressor centre, in the lower part. Together they are called the cardioregulatory centre, since they interact to control heart rate. The nervous supply to the heart is autonomic, consisting of both sympathetic and parasympathetic parts. The sympathetic fibres arise from the pressor centre, while the parasympathetic fibres arise in the depressor centre.The sympathetic nervous system works on speeding up the depolarisation rate and increasing the heart rate. The parasympathetic system

Without the circulatory system, the body would not be able to fight disease or maintain a stable internal environment. The heart is an organ that pumps blood throughout the body via the circulatory system, supplying oxygen and nutrients to the tissues and removing carbon dioxide and other wastes from the body. The main function of the nervous system is to receive information, and to generate a response. The information and the response could be simple, subtle or complex. For example, when you touch a hot object, its temperature is conveyed quickly to the central nervous system and the response is an immediate reflex of removing the hand. Another example is when you have a cold drink on a hot day, the body responds with a feeling of