The nervous system is a network of specialized cells that communicate information about an animal's surroundings and itself. It processes this information and causes reactions in other parts of the body. It is composed of neurons and other specialized cells called glia, that aid in the function of the neurons. The nervous system is divided broadly into two categories: the peripheral nervous system and the central nervous system. Neurons generate and conduct impulses between and within the two systems. The peripheral nervous system is composed of sensory neurons and the neurons that connect them to the nerve cord, spinal cord and brain, which make up the central nervous system. In response to stimuli, sensory neurons generate and propagate signals to the central nervous system which then processes and conducts signals back to the muscles and glands. The neurons of the nervous systems of animals are interconnected in complex arrangements and use electrochemical signals and neurotransmitters to transmit impulses from one neuron to the next. The interaction of the different neurons form neural circuits that regulate an organism's perception of the world and what is going on with its body, thus regulating its behavior. Nervous systems are found in many multicellular animals but differ greatly in complexity between species.
As you age, the nervous system undergoes changes such as a decrease in the number of nerve cells and a decrease in the speed of nerve signal transmission. This can lead to a decline in cognitive function, slower reaction times, and a decrease in overall coordination. Age-related conditions such as dementia or Alzheimer's disease can also affect the nervous system.
Nerves can weaken with age due to a decrease in the number of nerve cells and a decline in the insulation around nerves, leading to slower nerve conduction. Age-related factors such as oxidative stress, inflammation, and reduced blood flow can also contribute to nerve damage and dysfunction over time. Additionally, aging can increase the risk of nerve-related conditions such as neuropathy or nerve compression.
AIDS weakens the immune system, making the body less able to fight infections and diseases. This can lead to symptoms like weight loss, fatigue, and pain associated with infections and other health issues. The pain experienced by individuals with AIDS can also be due to nerve damage caused by the virus.
White matter is mainly composed of nerve fibers called axons, which are covered by a fatty substance called myelin. These axons form connections between different parts of the brain and spinal cord, allowing for communication between neurons. White matter is responsible for transmitting signals and coordinating communication within the nervous system.
Carpal tunnel syndrome is a condition that affects the nerve in the wrist, causing pain, numbness, and tingling in the hand and arm. Arthritis, on the other hand, is a condition that causes inflammation and stiffness in the joints. While carpal tunnel syndrome affects a specific nerve in the wrist, arthritis can affect any joint in the body.
The bundle of the nerve fibers is a collection of the threadlike extension of the nerve cell that consists of the myelin sheath and axon in the nervous system. There are nerve fibers in the peripheral nervous system and the central nervous system.
No, a nerve is one part of an organ system--the nervous system.
sensitivity helps the nerve system
Nerve agents affect the transmission of nerve impulses in your nervous system. Nerve agents can affect the central nervous system, the respiratory system as well as cholinergic nervous system.
A nerve cell is part of the nervous system, a network of neurons that carry signals throughout the body.
The main part of the periphal nerve system
the nerve tissue
No. The vagus nerve is in the parasympathetic system
Olfactory nerve, Optic nerve, Nasal sack, Trigeminal nerve, Gasserian ganglion, Facial nerve, Auditory nerve, Tympanic membrane, Glossopharyngeal nerve, pneumogastric nerve, First spinal nerve, Branchial enlargement, Branchial nerve, Third spinal nerve, fourth spinal nerve, fifth spinal nerve, sixth spinal nerve, seventh spinal nerve, eighth spinal nerve, ninth spinal nerve, tenth spinal nerve, Femoral nerve, Sciatic nerve, Sympathetic nerve trunk, Lumbar enlargement, Sympathetic ganglia, and Filum terminale.
nerve pathways
How does the repair of nerve fibers differ in the peripheral nervous system and the central nervous system? How does the repair of nerve fibers differ in the peripheral nervous system and the central nervous system? How does the repair of nerve fibers differ in the peripheral nervous system and the central nervous system? How does the repair of nerve fibers differ in the peripheral nervous system and the central nervous system? We can help our nervous systems by improving our reflexes
Yes, the peripheral nervous system has both sensory and motor nerve cells