The<unk>  is the anterior portion of the<unk>  peduncle which contains the motor tracts.
In some older texts, it is used as a synonym for the entire<unk>  peduncle, not just the anterior portion of it.
Cerebral crus
Intervertebral foramina
Lateral sulcus
Limbus of fossa ovalis
Subdural space
Anterior commissure
Malleus
Epidural space