![]() It is one of the main nerves that originate from the brachial plexus. Let’s take a close look at what constitutes the peripheral nervous system. The enteric nervous system specifically manages the functioning of the digestive system. The sympathetic nervous system governs the bodily responses to impending dangers, while the parasympathetic system is responsible for bodily actions that help in relaxation of body organs that are hyperactive. The autonomic nervous system is further divided into sympathetic, parasympathetic and enteric nervous systems. For example, controlling body movements and receiving external stimuli. ![]() Functionally, the peripheral nervous system can be divided into two parts the somatic nervous system and the autonomic nervous system, the somatic nervous system is responsible for bodily activities that are under conscious control. How does the central nervous system communicate with the other body organs? It is through the peripheral nervous system. It is the spinal cord which connects the brain and the peripheral nervous system. It transmits neural signals between the brain and other body parts. It extends from the brain up to the space between the first and the second lumbar vertebrae. It is around 45 cm long in men and 43 cm long in women. The spinal cord is a long tubular structure composed of nervous tissue and support cells. It’s strange yet true that the brain floats in a fluid!įor a detailed study of brain anatomy and its functions, read: diagram of the brain and its functions. Along with the skull, the brain is also protected by the cerebrospinal fluid in which it is suspended. The cerebrum is associated with information storage and processing the cerebellum is responsible for balance, posture and coordination of movements and the brain stem plays a vital role in controlling breathing and heart rate along with some other important body processes. The brain can be said to have three main parts, the brain stem, the cerebrum and the cerebellum. Even a brainiac won’t find it very easy to understand the brain! The human brain is about three times larger than the brain of a typical mammal. The brain is the center of the human nervous system and is a highly complex organ. Let’s take a closer look at the central nervous system parts and functions. To be precise, the brain is placed in the cranial cavity and the spinal cord in the spinal cavity. They also have their own protective covers! The skull protects the brain while the vertebrae and spinal cavity shield the delicate spinal cord. It is enveloped by a set of membranes known as meninges that protect the brain and the spinal cord. The central nervous system coordinates the functioning of all parts of the human body and is the largest part of the nervous system. Let’s come to answer how the nervous system works. So here are some interesting facts about the nervous system. Before you proceed to understand the human nervous system function and parts, you might like to go through some human nervous system facts. The signals are transmitted in the form of electrochemical waves or chemicals. The nervous system is a network of special cells, neurons and ganglia, that work together to carry out the transmission and reception of signals between different parts of our body. ![]() Before going to the details of the structure and functioning of the human nervous system, you should know what the nervous system actually is and what it does. ![]() And it was when I first studied the diagram of a human heart, I realized that the heart is not exactly heart-shaped!Ĭoming back to the point, let me start explaining the human nervous system function and parts with the help of a labeled diagram. It was the skeletal system diagram that helped me understand the “skeleton” of human bodies. It was the labeled animal cell diagram that ‘magnified my image’ of the microscopic cell. For me, diagrams and illustrations that textbooks carried, were always of great help in understanding the topic. Reading this article will be like reading about the human nervous system from your science textbook as this article carries a labeled human nervous system diagram to help you understand its design and working. She was a person who looked at science through a philosopher’s eye. It was wonderful to pick up the intricacies of a seemingly boring subject like human anatomy from her. Look at the brain, for example man will never be able to replicate its intricate design or recreate intelligence and emotion”. She used to say, “The human body systems are the most accurately engineered machines that possess an intellect of their own. Studying human anatomy became interesting, thanks to her. The thought of diagrams brought back memories of school days the scent of those textbooks the sight of the classroom and my teacher’s voice that said, “C’mon class, open your science books, page 41, chapter 3, Human Body Systems”.
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