In botany, a Peduncle (botany) is a flower stalk, or stem.
In anatomy, a Peduncle (anatomy) is a band of neurons, resembling a stalk, which connect varied parts of the brain.
In zoology, a Peduncle (zoology) a stem, whereby a mass of tissue is attached to a body.
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The upper part of the posterior district of the medulla oblongata is occupied by the inferior peduncle, a thick rope-like strand situated between the lower part of the fourth ventricle and the roots of the glossopharyngeal and vagus nerves.
Caudal to the striæ medullares the inferior peduncle is partly covered by the corpus pontobulbare (Essick 120), a thin mass of cells and fibers extending from the pons between the origin of the VII and VIII cranial nerves.
The cerebellum is connected to the cerebrum, pons, and medulla oblongata; to the cerebrum by the superior peduncle, to the pons by the middle peduncle, and to the medulla oblongata by the inferior peduncles.
Thus, the superior cerebellar peduncle is the major output pathway of the cerebellum.
This peduncle also carries information directly from the Purkinje cells to the vestibular nuclei in the dorsal brainstem located at the junction between the pons and medulla.
In the cerebellum, the PICA supplies blood to the posterior inferior portion of the cerebellum, the inferior cerebellar peduncle, the nucleus ambiguus, the vagus motor nucleus, the spinal trigeminal nucleus, the solitary nucleus, and the vestibulocochlear nuclei.
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