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The cerebellum. Derham.

Pertaining to the cerebellum.

The large lobe of the hind brain in front of and above the medulla; the little brain. It controls combined muscular action. See Brain.

One of the rounded prominences of the lower surface of the lateral hemispheres of the cerebellum, each side of the vallecula.

The treelike disposition of the gray and white nerve tissues in the cerebellum, as seen in a vertical section.

ies or protuberances; as, a biventral, or digastric, muscle, or the biventral lobe of the cerebellum.

us adjustment; as, a coördination of functions. "Coördination of muscular movement by the cerebellum." Carpenter.

The segment of the brain next behind the midbrain, including the cerebellum and pons; the hindbrain. Sometimes abbreviated to epen.

A small lobe in the under surface of the cerebellum, near the middle peduncle; the subpeduncular lobe.

Not having arrived at puberty; immature. In impuberal animals the cerebellum is, in proportion to the brain proper, greatly less than in adults. Sir W. Hamilton.

art of the brain connected with the spinal cord. It includes all the hindbrain except the cerebellum and pons, and from it a large part of the cranial nerves arise. It controls very largely respiration, circulation, swallowing, and other functions, and is the most vital part of the brain; -- called also bulb of the spi…

rvous or fibrous matter connecting different parts of the brain; as, the peduncles of the cerebellum; the peduncles of the pineal gland.

tral side of the medulla oblongata and connected at each side with the hemispheres of the cerebellum; the mesocephalon. See Brain. Pons asinorum. Etym: [L., literally, bridge of asses.] See Asses' bridge, under Ass.

Large ganglion cells forming a layer near the surface of the cerebellum.

Situated beneath the peduncle; as, the subpeduncular lobe of the cerebellum.

A fold of the dura mater which separates the cerebellum from the cerebrum and often incloses a process or plate of the skull called the bony tentorium.

A groove; a fossa; as, the vallecula, or fossa, which separates the hemispheres of the cerebellum.

Resembling a worm in form or motions; vermicular; as, the vermiform process of the cerebellum. Vermiform appendix (Anat.), a slender blind process of the cæcum in man and some other animals; -- called also vermiform appendage, and vermiform process. Small solid bodies, such as grape seeds or cherry stones, sometimes lo…