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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. Let's take a look at the peripheral nervous system.
Peripheral Nervous SystemThere are two types of cells in the peripheral nervous system. These cells carry information to (sensory nervous cells) and from (motor nervous cells) the central nervous system (CNS). Cells of the sensory nervous system send information to the CNS from internal organs or from external stimuli.Motor nervous system cells carry information from the CNS to organs, muscles, and glands. The motor nervous system is divided into the somatic nervous system and the autonomic nervous system. The somatic nervous system controls skeletal muscle as well as external sensory organs such as the skin. This system is said to be voluntary because the responses can be controlled consciously. Reflex reactions of skeletal muscle however are an exception. These are involuntary reactions to external stimuli.
The autonomic nervous system controls involuntary muscles, such as smooth and cardiac muscle. This system is also called the involuntary nervous system. The autonomic nervous system can further be divided into the parasympathetic and sympathetic divisions.
The parasympathetic division controls various functions which include inhibiting heart rate, constricting pupils, and contracting the bladder. The nerves of the sympathetic division often have an opposite effect when they are located within the same organs as parasympathetic nerves. Nerves of the sympathetic division speed up heart rate, dilate pupils, and relax the bladder. The sympathetic system is also involved in the flight or fight response. This is a response to potential danger that results in accelerated heart rate and an increase in metabolic rate.
Thats all I know about a nervous system and spinal nerves hope it is helpful.
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What nervous system made up?
The nervous system is the control system and the network of communication for the body. The nervous system is made up of nerves, the spinal cord and the brain. The nerves control everything we do; they carry messages that tell us to move, to breathe, to feel and to think. Nerves run to the muscles, organs, heart, lungs, blood vessels, brain--even to our teeth and skin. There are two sets of nerves: the central nervous system and the peripheral (outside) nervous system.
The central nervous system consists of the?
The central nervous system consists of the brain and spinal cord. The nerves leading from the spinal cord make up the peripheral nervous system.
What do nerves of somatic nervous system control?
The nerves of the somatic nervous system control many different things. They carry the sensory data into the spinal cord, carry information into and out of the brain stem, and integrate sensory input and motor output.
What in your body sends messages from your brain and spinal cord?
Efferent neurons carry impulses from your brain and spinal cord to other nerves, glands, and muscles in your body. the central nervous system
How would you define peripheral nervous system?
The peripheral sytem is the outer layering of the nervous system.It is attached to all sorts of nerves and also the spinal cord The peripheral nervous system is the part of the nervous system that controls the limbs. The peripheral nervous system contains nerves and ganglia outside of the brain and spinal cord.
What connects your body to the central nervous system?
The central nervous system. Or CNS. you so funny
What are sensory nerves?
Sensory nerves are part of the peripheral nervous system which includes the cranial and spinal nerves. They bring impulses to the central nervous system which includes the brain and spinal cord. Peripheral means the sides and that is why the sensory nerves are referred to as the peripheral nervous system. All of the nervous system is related to the skin because both the nervous system tissues and skin tissues originated in endoderm during the gastrula stage of embryonic development. The sensory nerves form the link between receptors and the central nervous system (CNS). They carry nerve impulses from stimulated receptors to the CNS. They are also referred to as afferent nerves.
Nerves that carry impulses toward the Central Nervous system only are?
Sensory neurons are nerves that carry electrical signals only toward the Central Nervous System. These nerves are found in the ganglia.
What does spinal column protect?
The spinal column, a series of vertebrae composed of bone, protects a part of the nervous system known as the spinal cord. The spinal cord is a bundle of nerves that helps to carry messages to various parts of the body.
What system controls how your muscles move your bones?
Your nervous system controls how your muscles move your bones. Nerves carry electrical signals from your brain and spinal cord to your muscles. Without nerves you would never move a muscle.
What are the main components of the nervous system?
The somatic and autonomic nervous systems. The somatic nervous system has nerves that connect voluntary skeletal muscles and sensory receptors. It is made of afferent nerves that carry info to the CNS and efferent fibers that carry neural impulses away from the CNS. The autonomic system, mediates physiological arousal. This system has two components: the sympathetic nervous system that mobilizes the body to respond to emergencies and the parasympatheic nervous system that helps conserve the body's energy and helps return the body back to normal activity after an emergency.
What part of the peripheral nervous system carries the sensory and motor information to and from the central nervous system?
You have thousands of nerves that are part of the PNS.Divisions of the peripheral nervous system include the afferent (sensory) division and the efferent (motor) division. The nerves coming from all the senses and the nerves going to glands and muscles are included.The efferent division is divided further into the somatic motor nervous system and thesomatic nervous system which includes all voluntary motor pathways outside the central nervous system.
