What is the nervous system?
Have you ever thought how can you feel the various sensations, react to pain or a tickle, how can you instantly solve a simple mathematical problem, how can you cry when you are sad and laugh when you are happy? Well, the nervous system helps you experience all these sensations and emotions.
The nervous system consists of the brain, spinal cord, and a complex network of neurons. This system is responsible for sending, receiving, and interpreting information from all parts of the body. The nervous system monitors and coordinates internal organ function and responds to changes in the external environment. This system can be divided into two parts: the central nervous system and the peripheral nervous system.
The nervous system consists of the brain, spinal cord, and a complex network of neurons. This system is responsible for sending, receiving, and interpreting information from all parts of the body. The nervous system monitors and coordinates internal organ function and responds to changes in the external environment. This system can be divided into two parts: the central nervous system and the peripheral nervous system.
What are the main parts of the nervous system?
Central Nervous System: Is the processing center for the nervous system since it contains two main organs, the brain and the spinal cord. It receives information from and sends information to the peripheral nervous system. The brain and spinal cord work together within the central nervous system. The brain processes and interprets the sensory information that is sent from the spinal cord.
The central nervous system contains a network of hollow cavities called ventricles. The ventricles are filled with cerebrospinal fluid which surround, cushion and protect the brain and spinal cord from any trauma. This fluid also allows for the circulation of nutrients to the brain.
Peripheral Nervous System: It is the portion of the nervous system that lies outside of the brain and spinal cord. It contains nerves and a mass of nerve tissues called ganglia. The main function of this system is to connect the central nervous system to the limbs and organs found in the human body. The peripheral nervous system is not protected like the central nervous system is, which means
it is more exposed to toxins and injury. This system is divided in the somatic nervous system and the autonomic nervous system. The somatic nervous system controls voluntary movements of the skeletal muscles. The autonomic nervous system controls the system of nerves that stimulates involuntary functions (such as the heart beating). The peripheral nervous system also contains a portion of the cranial nerve, which are the nerves connected to the brain-stem.
The central nervous system contains a network of hollow cavities called ventricles. The ventricles are filled with cerebrospinal fluid which surround, cushion and protect the brain and spinal cord from any trauma. This fluid also allows for the circulation of nutrients to the brain.
Peripheral Nervous System: It is the portion of the nervous system that lies outside of the brain and spinal cord. It contains nerves and a mass of nerve tissues called ganglia. The main function of this system is to connect the central nervous system to the limbs and organs found in the human body. The peripheral nervous system is not protected like the central nervous system is, which means
it is more exposed to toxins and injury. This system is divided in the somatic nervous system and the autonomic nervous system. The somatic nervous system controls voluntary movements of the skeletal muscles. The autonomic nervous system controls the system of nerves that stimulates involuntary functions (such as the heart beating). The peripheral nervous system also contains a portion of the cranial nerve, which are the nerves connected to the brain-stem.