Match the nervous system structures with the correct descriptions below. Ganglia

Question

Match the nervous system structures with the correct descriptions below. Ganglia Groups of neuronal cell bodies outside the CNS. White matter General regions of the CNS where myelinated axons are found. Gray matter Tract A group of neuronal axons traveling together within the CNS Ganglia Groups of neuronal cell bodies within the CNS. Commissure General regions of the CNS where cell bodies are found Nerve A group of neuronal axons that connect the right and left sides of the CNS Nuclei A group of neuronal axons traveling together in the PNS. Tract

Explanation / Answer

Ans

White matter is the general region of CNS where myelinated axons are found.

Nuclei are the group of the neural cell bodies within the CNS, while Ganglia is the group of the neural cell bodies within the PNS i.e outside the CNS

Grey matter s the general region of CNS where cell bodies are found.

A commissure is A group of neuronal axons that connect the right and left sides of the CNS. Commissural fibers are white matter structures that connect the two hemispheres of the brain. The commissural fibers include corpus callosum, anterior commissure, and posterior commissure. In the human brain corpus callosum is the largest commissural fiber system that connects the two cerebral hemispheres and It consists of about 200-300 million axons. The corpus callosum is essential to the communication between the two hemispheres. The anterior commissure (precommissure) is a bundle of nerve fiber and connected to two temporal lobes of the cerebral hemisphere across the midline. The posterior commissure (Epithalamic commissure) is a rounded band of white fibers.

Nerve A group of neuronal axons traveling together in the PNS.

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