The middle segment of the brain; the mesencephalon. See Brain.
A portion of the brain stem.
(More? Neural Notes)
the middle of three swellings in the hollow nerve cord of the primitive vertebrate brain; formed by a thickening of the wall of the nerve cord.
The middle part of the brain that consists of a mass of nerve fibre tracts connecting the spinal cord and pons, medulla, and cerebellum to the cerebral cortex.
(MIHD-bran) The superior part of the brain stem, located between the diencephalon and the pons. It serves as a relay center for impulses. Also called the mesencephalon.
The portion of the brain between hindbrain and forebrain that is involved in arousal, the sleep-waking cycle, and auditory and visual targeting.
(Mesencephalon)The portion of the brain developed from the middle of the three primary vesicles in the embryo. In cross-section, the midbrain resembles "Mickey Mouse": the ears are the cerebral peduncles. image
lies at the top of the brainstem between the pons and cerebral peduncle. It contains the third and fourth cranial nerve nuclei, as well as a number of other important structures such as the red nucleus, substantia nigra, periaqueductal grey matter and colliculi
a portion of the brain that lies between the hindbrain and the forebrain that consists of a collection of crossing nerve tracts.
the middle portion of the brain
area of the brain that serves as the relay center between the hindbrain and the forebrain, sending stimuli to higher brain centers.
Part of the brain stem from which the nerves controlling eye movement and eyelid opening arise.
A network of neurons that connects with the forebrain and relays sensory signals to other integrating centers. PICTURE
Part of the brain stem, it is the origin of the third and fourth cranial nerves, which control eye movement and eyelid opening.
The middle swelling on the neural tube, also called the mesencephalon.
A region of the brain that relays sound input to the auditory cortex.
The middle of the three brain vesicles that arise from the neural tube during embryonic development. In the adult brain, the midbrain consists of brain structures such as the superior colliculus, the inferior colliculus, and parts of the reticular formation.
a middle area of the brainstem that contains many important nerves (including the origins of the third and fourth cranial nerves which control eye movement and eyelid opening).
A part of the brain that is mainly concerned with the control of eye movement. Also relays signals for auditory and visual reflexes.
The section of the brain that links the forebrain and hindbrain. Thought to play an important role in migraine headaches.
The uppermost of the three segments of the brainstem, primarily serving as an intermediary between the rest of the brain and the spinal cord.