The ultimate ending of the left lateral lemniscus is partly in the opposite medial geniculate body, and partly in the inferior colliculi. ❋ Unknown (1918)
The superior colliculi are larger and darker in color than the inferior, and are oval in shape. ❋ Unknown (1918)
A slightly elevated ridge, the frænulum veli, descends upon its upper part from between the inferior colliculi, and on either side of this the trochlear nerve emerges. ❋ Unknown (1918)
The inferior colliculi (lower or posterior quadrigeminal bodies) are important auditory reflex centers. ❋ Unknown (1918)
They run upward and forward, and, passing under the inferior colliculi, enter the tegmenta as already described (page 792). ❋ Unknown (1918)
It forms, together with the superior peduncle, the roof of the upper part of the fourth ventricle; it is narrow above, where it passes beneath the inferior colliculi, and broader below, where it is continuous with the white substance of the superior vermis. ❋ Unknown (1918)
Transverse section of mid-brain at level of inferior colliculi. ❋ Unknown (1918)
Subsequently two oblique furrows extend medialward and backward, and the thickened lamina is thus subdivided into the superior and inferior colliculi. ❋ Unknown (1918)
The superior colliculi are associated with the sense of sight, the inferior with that of hearing. ❋ Unknown (1918)
The anterior notch lies close to the pons and upper part of the medullas, and its superior edge encircles the inferior colliculi and the superior cerebellar peduncle. ❋ Unknown (1918)
The corpora quadrigemina are arranged in pairs (superior and inferior colliculi), and are separated from one another by a crucial sulcus. ❋ Unknown (1918)
The inferior colliculi are hemispherical, and somewhat more prominent than the superior. ❋ Unknown (1918)
They are joined to each other across the middle line by the anterior medullary velum, and can be followed upward as far as the inferior colliculi, under which they disappear. ❋ Unknown (1918)
Since the superior colliculi appear to be the central organs concerned in the control of eye-muscle movements and eye-muscle reflexes we should expect to find them receiving fibers from other sensory paths. ❋ Unknown (1918)
Transverse section of mid-brain at level of superior colliculi. ❋ Unknown (1918)
The longitudinal part of this sulcus expands superiorly to form a slight depression which supports the pineal body, a cone-like structure which projects backward from the thalamencephalon and partly obscures the superior colliculi. ❋ Unknown (1918)
The spinotectal fasciculus, as its name indicates, is supposed to have its origin in the gray matter of the cord and terminations in the superior and inferior (?) colliculi of the mid-brain serving for reflexes between the cord and the visceral and auditory centers of the mid-brain. ❋ Unknown (1918)
The pineal body (epiphysis) is a small reddish-gray body, about 8 mm. in length which lies in the depression between the superior colliculi. ❋ Unknown (1918)
The superior peduncle (page 792), on emerging from the central white substance of the cerebellum, pass upward and forward, forming at first the lateral boundaries of the upper part of the cavity; on approaching the inferior colliculi, they converge, and their medial portions overlap the cavity and form part of its roof. ❋ Unknown (1918)
In fishes, reptiles, and birds they are hollow, and only two in number (corpora bigemina); they represent the superior colliculi of mammals, and are frequently termed the optic lobes, because of their intimate connection with the optic tracts. ❋ Unknown (1918)
