describe the arbor vitae, including its makeup, location, and function. (module 13.6b) describe the arbor vitae, including its makeup, location, and function. (module 13.6b) the arbor vitae is gray matter of the cerebellum that interconnects pontine nuclei with the opposite cerebellar hemisphere. the arbor vitae is white matter of the cerebellum that carries communications between the cerebellum and pons. the arbor vitae is white matter of the cerebellum that connects the cerebellar cortex and nuclei with cerebellar peduncles. the arbor vitae is white matter of the cerebellum that links the cerebellum with the medulla oblongata and spinal cord. the arbor vitae is white matter of the cerebellum that connects the cerebellum with the midbrain, diencephalon, and cerebrum.