The spinal cord is divided into how many different region?
Correct answer: C. 5
- A. 2
- B. 6
- C. 5
- D. 8
Explanation
The spinal cord and spine are divided into 5 regions from top to bottom: cervical, thoracic, lumbar, sacral and coccygeal.Each region gives rise to specific pairs of spinal nerves, with 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal nerve pair for a total of 31 pairs. Damage to the nerves in the spinal cord can result in many health conditions, depending on the region that is affected.
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About Coordination and Control
Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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