Abstract
The aim of the study is to compare the histological changes that occur in the sensory neurons of dorsal root ganglion at L6 and L7 levels of the spinal nerve in different age groups in rabbits. Fifteen rabbits were divided into three groups of equal number according to their age (weaning, maturation and adult). Dorsal root ganglion of spinal nerve at L6 and L7 levels were removed and examined histologically under light microscope. Comparison were made in diameters of neurons and their numbers in different age. The results showed a significant (P<0.05) decrease in the number of sensory neurons and a significant (P<0.05) increase in their diameters with advancing age. In conclusion, the structures of sensory neurons are altering by the age factors in which morphology, number, and color of neurons change also.
Highlights
Fifteen rabbits were divided into three groups of equal number according to their age
In the present study the influence of age on the morphology, number and diameter of sensory neurons in the dorsal root ganglion of spinal nerve at L6 and L7 levels were compared among different age groups
Sensory neurons were darkly stained with (H and E) in the weaning group compared with both maturation and adult groups
Summary
Fifteen rabbits were divided into three groups of equal number according to their age (weaning, maturation and adult). Dorsal root ganglion of spinal nerve at L6 and L7 levels were removed and examined histologically under light microscope. Comparison were made in diameters of neurons and their numbers in different age. The results showed a significant (P
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