The back is a body area, not an organ system.
a dorsal is an organ that protects the nervous system.
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kidney
Organisms are the product of evolution. Organisms did not evolve from organ systems, rather, organisms have evolved organ systems to accomplish various specific biological functions. However, if we go back farther, to the evolution of the cell, we find that there are organelles, the mitochondria, which have their own genetics, and which almost certainly evolved originally as independent organisms before entering into a symbiotic relationship with cells. It is speculated that perhaps all the organelles of a cell evolved separately. That is the closest we can come, to an organ system that turns into an organism, although it is really an organelle system.
The nervous system in the human body can best be described as a super highway. Nerve impulses reach the brain and go back to the significant area in seconds.
The back is a body area, not an organ system.
Neurological system. Sensory messages travel along the neural pathway from each organ to the Central Nervous System where action is relayed back to the organ.
a dorsal is an organ that protects the nervous system.
The cranium (skull) is the collection of bones that protects the brain, which is the major organ of the nervous system.
They are part of the cardiovascular system.
No, the kidneys are up higher in the back. The vast majority if the time pain in the area you describe is from the muscles in the back. Occasionally other problems with abdominal organs can go there so if the pain is that bad you would be best to see your doctor.
As with most creatures the feeding organ of an earthworm is the mouth. Located behind the mouth is the pharynx which acts as a suction pump; its muscular walls draw food back.
Place a scented tart in the top part of the organ (in the orange area inside the pipes), then a unscented tealight in the inside the base from the back side.
Unknown. The development of the organ dates back to before 300 BCE The Greek engineer Ctesibius is given credit for a wind stabilization system using water in approx. 265 BCE.
A fundus examination is a detailed examination of the back of the eye, including the retina and blood vessels. When the fundus is described as unremarkable, it means that no abnormal findings or abnormalities were noted during the examination. This is a positive outcome indicating that the structures at the back of the eye appear normal.
Dorsal or posterior mean back of the body.
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