Projection fiber

Efferent

• the motor tract, occupying the genu and anterior two-thirds of the occipital part of the internal capsule, and consisting of
• * the geniculate fibers, which decussate in the medulla, and end in the motor nuclei of the cranial nerves of the opposite side; and
• * the cerebrospinal fibers, which are prolonged through the medullary pyramids into the spinal cord:
• the corticopontine fibers, ending in the pontine nuclei.

  Afferent

• those of the lemniscus which are not interrupted in the thalamus;
• those of the superior cerebellar peduncle which are not interrupted in the red nucleus and thalamus;
• numerous fibers arising within the thalamus, and passing through its stalks to the different parts of the cortex;
• optic and acoustic fibers, the former passing to the occipital, the latter to the temporal lobe.