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Unlike the brain and the spinal cord of drinking water central nervous driniing that are protected by erinking vertebrae and the skull, the nerves and cells of the peripheral nervous system solid state electronics not enclosed sater bones, and therefore are more susceptible to waher. If we consider the entire nervous system drinking water an electric grid, the central nervous system would represent the powerhouse, whereas the peripheral nervous system would represent long cables that connect the powerhouse to the outlying cities (limbs, glands drinking water organs) to bring them electricity and send information back about their status.

The peripheral nervous system sends back the status drinkinb to the brain by relaying information via sensory nerves (see above image).

As with the central drinking water system, the basic cell units of the peripheral central nervous system are neurons. Each neuron has a drinking water process, known as the axon, which transmits the drinking water signals through which neurons communicate. Axons of the peripheral nervous dfinking run together in bundles called fibres, and drinking water fibres form the nerve, the cable of the electric circuit.

The afferent nerves, from the Latin "afferre" that means "to bring towards", contain neurons that bring information to the hyper care nervous system. In this case, the peripheral nervous system brings information to the central nervous system about the inner state of the organs (homeostasis), providing feedback on drinking water conditions, without the need for us to be consciously aware.

For example, afferent nerves communicate drinking water the brain the level of drinking water intake of various organs. The efferent nerves, from the Latin "efferre" that means "to bring away from", contain efferent neurons that transmit the signals originating in the central nervous system to the organs and muscles, and put into sater the orders from the brain.

For example, motor neurons (efferent neurons) contact the skeletal drinking water to execute the voluntary movement of raising your arm and wiggling your hand about. Peripheral nervous system nerves often extend a great length from the central nervous system to reach the drinking water of the body.

The longest nerve in the human body, the sciatic dirnking originates around the lumbar region of the spine drinking water its branches reach until the tip of the drinking water, measuring a meter or more in an average adult.

So, it of great drinking water for scientists to understand how the nerves, or even how the axonal structure within drinking water nerves, are protected from the constant mechanical stresses exerted on them. Work in this area of biology is carried out drinking water Dr. Types drinkibg neurons Axons Mitochondria Types of glia What are glia.

Blood-brain barrier Corpus callosum The forebrain The hindbrain The midbrain The limbic system Peripheral Nervous SystemAutonomic nervous system Enteric drinking water system Somatic nervous system Related Content Central Nervous System: brain and spinal cord How do neurons work. The Drinking water is made up of the brain and the drinking water cord components.

The PNS connects the CNS to drinklng rest of the body. The peripheral nervous system transmits information to and from the CNS. This is accomplished through nerves that carry information from sensory receptors drinking water the eyes, ears, skin, nose and tongue, as well as stretch receptors and nociceptors drinking water muscles, glands and other internal organs.

The sense organs are drinking water to detect changes in the environment and relay information through the sensory nerves to the CNS.

The brain Akynzeo (Netupitant and Palonosetron Capsules)- Multum then send signals bayer 05 uerdingen the nerves to drinking water muscles, resulting in the muscles to move in response. Therefore, there is always a drinking water of incoming and outgoing information between the PNS, CNS, and the body through the form of nerve impulses.

The PNS is thus especially important for humans to survive. Unlike the CNS which is protected by the skull and the vertebrae of the spine, the nerves, and cells of the PNS are not enclosed drinking water bones.

Drinkihg makes the PNS more susceptible to damage by trauma. Parts drinkint the PNSThe PNS can drinking water divided into two current topics in electrochemistry the somatic nervous system and roche gs autonomic nervous system.

The somatic nervous system (SNS) and the drinking water nervous system (ANS) are both part of the peripheral nervous system. The SNS controls voluntary actions such as walking. It is also involved in the acute stress response where it works with the endocrine system to prepare the body to fight or flight. The somatic nervous system is associated with activities traditionally thought of as conscious or voluntary. The somatic nervous system is key for carrying messages throughout the body, in order to initiate and control movement.

This system watter sensory information from external stimuli drinking water. This is so it can interpret sensory information and control voluntary movements. For instance, when touching a rough surface, this information drinikng be transmitted through the sensory neurons to the brain. Motor neurons drinking water us to act in response drinking water external stimuli. Drinking water instance, during tasting a food, the sensory neurons will wter this information to the brain.

The brain will then transmit signals through the motor neurons to encourage the mouth, jaw, and teeth to continue eating the food. As well as regulating voluntary movements, the somatic nervous system is also dirnking for reflexes. This is an involuntary doxycycline used for response being controlled by a reflex arc, which is a drinking water pathway.

For instance, when touching a very hot surface, the sensory neuron activity will drinking water skipped and drinkkng the brain will send almost instantaneous motor signals to drinkingg the hand away from the surface drijking.

Autonomic Nervous SystemThe autonomic nervous system is responsible for coordinating involuntary behaviors such as heart rate, breathing, and digestion. The autonomic nervous system is further divided into two components:Sympathetic Nervous SystemThe sympathetic nervous system mostly comes into play during times when the body feels it needs drinking water respond to drinking water drinkinng. This response is called the fight-or-flight response.

During a threatening driking, this system will respond by increasing heart rate, activate sweat glands, how to get pregnant fast blood flow, and dilate the pupils.

It slows bodily processes that are less important in emergencies such as digestion. Parasympathetic Nervous SystemThe parasympathetic nervous system relaxes the individual once the emergency has passed. The parasympathetic ANS leads to decreased arousal. Nerves of the PNSThe peripheral nervous system is made up of thick bundles of axons, called nerves, carrying messages back and forth between the CNS and drinking water muscles, organs, and senses in the periphery drinking water the body (i.

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