Related Experiment Video
Updated: Aug 16, 2026

Dissection, Culture, and Analysis of Xenopus laevis Embryonic Retinal Tissue
Published on: December 23, 2012
Pretectal and accessory-optic visual nuclei of fish, amphibia and reptiles: theme and variations
Abstract:
The organization of the accessory optic and pretectal circuits is surveyed in a variety of poikilotherms and the conclusion drawn that a common organizational pattern exists. This pattern consists of the presence of three optic pretectal nuclei located rostrocaudally in lateral-superficial, central and dorsomedial (or periventricular) positions. Furthermore, a well-defined basal optic tract and ventrolaterally placed terminal field at the level of the oculomotor nucleus appears to be a consistent feature among bony fish, amphibians and reptiles. The possible role of these circuits in in visuomotor behaviors is discussed.
More Related Videos
10:36In Vivo Imaging of Transgenic Gene Expression in Individual Retinal Progenitors in Chimeric Zebrafish Embryos to Study Cell Nonautonomous Influences
Published on: March 22, 2017
09:00Eye Removal in Living Zebrafish Larvae to Examine Innervation-dependent Growth and Development of the Visual System
Published on: February 11, 2022
Related Concept Videos
Vision
Diencephalon: Anatomical Regions
Diencephalon: Thalamus and Information Relay
Diencephalon: Hypothalamus and Coordination
The hypothalamus interacts with other brain regions, including the pituitary gland, through a direct physical connection called the hypothalamic-pituitary axis. The hypothalamus receives somatic and visceral inputs and...
Brainstem
The Midbrain
The midbrain is located beneath the diencephalon and connects the cerebrum with the lower parts of the brain. The cerebral peduncles are prominent midbrain structures that house the...
Anatomy of the Eyeball