Question:

How many pairs of spinal nerves are found in humans

Updated On: Jun 20, 2022
  • 32
  • 31
  • 30
  • 33
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The Correct Option is B

Solution and Explanation

Man has 31 pairs of spinal nerves. These are [a] Cervical ? 8 pairs in neck [b] Thoracic ? 12 pairs in thorax [c] Lumbar? 5 pairs in upper part of abdomen [d] Sacral ? 5 pairs in lower part of abdomen [e] Coccygeal ? tail nerve. Frog has 10 pairs of spinal nerves, while rabbit has 37 pairs of spinal nerves.
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Concepts Used:

Neural Control and Coordination

Neural System:

Neurons are the most specialised cells in the nervous system of all animals, and they are responsible for detecting, accepting, and conveying numerous types of motives. The neurological system of low-spinal animals like Hydra is incredibly simple, consisting of a network of neurons. When the brain of an insect comprises a vast number of ganglia and neural tissues, it is optimally structured.

Coordination System:

Coordination is the process by which two or more organs work together to accomplish each other's duties. Increased muscle activity increases the supply of oxygen and the demand for energy while we exercise. When we cease exercising, our nerves, heart, lungs, and kidneys all return to normal. As a result, all of the organs' functions are properly integrated in order to conduct the exercise and supply the appropriate conditions while exercising. Similarly, in the human body, the neurological and endocrine systems work together to coordinate all of the organ activities.