torus semicircularis — Zebrafish UCL

Midbrain > Torus Semicircularis

Schematic showing the position of thetorus semicircularis in sagittal, horizontal and coronal sections through the zebrafish brain. Based on the anatomical segmentation of 3 day old zebrafish larval brain by Thomas Müller, Olaf Ronneberger, Wolfgan… — Schematic showing the position of thetorus semicircularis in sagittal, horizontal and coronal sections through the zebrafish brain.
Based on the anatomical segmentation of 3 day old zebrafish larval brain by Thomas Müller, Olaf Ronneberger, Wolfgang Driever and colleagues. For details see Ronneberger et al., Nat. Meth. 2012 and http://vibez.informatik.uni-freiburg.de
Abbreviations: Ce, cerebellar plate; D, dorsal telencephalon/pallium; E, epiphysis; EmT, eminentia thalami; Hb, habenula; Hyp, hypothalamus; MO, medulla oblongata; OB, olfactory bulb; OT, optic tectum; PG, preglomerular complex; PO, preoptic area;PrT, pretectum; PTd, posterior tuberculum dorsal part; PTh, prethalamus; PTv posterior tuberculum ventral part; Teg, tegmentum; Th, thalamus; TS, torus semicircularis; V, ventral telencephalon/subpallium; Va, valvula cerebelli.

Description

Schematic showing the position of the torus semicircularis at 6dpf based on the 3D anatomical segmentation used by the **Zebrafish Brain Browser** by **Gupta et al., 2018**.

The torus semicircularis is part of the auditory pathway in zebrafish. The auditory system in zebrafish is similar to that of mammals. fish sense sound waves via the otoliths of the inner ear and convey this auditory information via the VIIIth cranial nerve to the octavolateralis nuclei in the hindbrain then through the torus semicircularis (the equivalent of the inferior colliculus in mammals) to the thalamus (Vanwalleghem et al 2017).