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  2. Tegmentum - Wikipedia

    en.wikipedia.org/wiki/Tegmentum

    The tegmentum is the ventral part of the midbrain and the tectum is the dorsal part of the midbrain. [1] It is located between the ventricular system and distinctive basal or ventral structures at each level. It forms the floor of the midbrain (mesencephalon) whereas the tectum forms the ceiling. [2] It is a multisynaptic network of neurons ...

  3. Midbrain - Wikipedia

    en.wikipedia.org/wiki/Midbrain

    The midbrain or mesencephalon is the rostral -most portion of the brainstem [2] connecting the diencephalon and cerebrum with the pons. [3] It consists of the cerebral peduncles, tegmentum, and tectum. It is functionally associated with vision, hearing, motor control, sleep and wakefulness, arousal (alertness), and temperature regulation.

  4. Brainstem - Wikipedia

    en.wikipedia.org/wiki/Brainstem

    The brainstem (or brain stem) is the posterior stalk-like part of the brain that connects the cerebrum with the spinal cord. [1] In the human brain the brainstem is composed of the midbrain, the pons, and the medulla oblongata. [1] The midbrain is continuous with the thalamus of the diencephalon through the tentorial notch, and sometimes the ...

  5. Midbrain tegmentum - Wikipedia

    en.wikipedia.org/wiki/Midbrain_tegmentum

    The midbrain tegmentum is also an important part of the dopaminergic system which is essential for feelings of reward and pleasure. Two regions in the midbrain tegmentum are of particular interest. The first one is the substantia nigra which is an important part of the nigrostriatal pathway. This pathway serves to coordinate motor movements and ...

  6. Pretectal area - Wikipedia

    en.wikipedia.org/wiki/Pretectal_area

    In neuroanatomy, the pretectal area, or pretectum, is a midbrain structure composed of seven nuclei and comprises part of the subcortical visual system.Through reciprocal bilateral projections from the retina, it is involved primarily in mediating behavioral responses to acute changes in ambient light such as the pupillary light reflex, the optokinetic reflex, and temporary changes to the ...

  7. Medial longitudinal fasciculus - Wikipedia

    en.wikipedia.org/wiki/Medial_longitudinal_fasciculus

    g. Frontopontine fibers. The medial longitudinal fasciculus (MLF) is a prominent bundle of nerve fibres which pass within the ventral/anterior portion of periaqueductal gray of the mesencephalon (midbrain). [ 1 ] It contains the interstitial nucleus of Cajal, responsible for oculomotor control, head posture, and vertical eye movement.

  8. Ventral tegmental area - Wikipedia

    en.wikipedia.org/wiki/Ventral_tegmental_area

    The ventral tegmental area (VTA) (tegmentum is Latin for covering), also known as the ventral tegmental area of Tsai, [1] or simply ventral tegmentum, is a group of neurons located close to the midline on the floor of the midbrain. The VTA is the origin of the dopaminergic cell bodies of the mesocorticolimbic dopamine system and other dopamine ...

  9. Cerebral aqueduct - Wikipedia

    en.wikipedia.org/wiki/Cerebral_aqueduct

    Drawing of a cast of the ventricular cavities, viewed from the side. The cerebral aqueduct (aqueduct of the midbrain, aqueduct of Sylvius, Sylvian aqueduct, mesencephalic duct) is a small, narrow tube connecting the third and fourth ventricles of the brain. [1][2] The cerebral aqueduct is a midline structure that passes through the midbrain.