How many laminae present in the spinal cords grey matter?
Correct answer: A. 10
- A. 10
- B. 8
- C. 12
- D. 9
Explanation
In spinal cord, laminae comprise a system of ten layers of grey matter (I-X). Similar to Brodmann areas, they are defined by their cellular structure rather than by their location.
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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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