Glands of Swammerdam which is hound in the frog’s central nervous system are associated withcranial nerve medulla oblongataspinal nerve pons varolii

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Correct Answer is 3. Spinal nerve
In frog, glands of Swamerdam covers the dorsal root ganglia aof spinal nerves. These glands are calcareous bodies and white woft chalky masses in frog.