Semi-circular Canal
Semi-circular Canal - Related Videos
08:38
Testing of all Six Semicircular Canals with Video Head Impulse Test Systems
0 Views •
Cited by 26 •
2019
This protocol describes how to correctly perform the video head impulse test with two separate test systems commonly used worldwide. Both the 2D and 3D video head impulse test methods are described.
03:52
Posterior Semicircular Canal Approach for Inner Ear Gene Delivery in Neonatal Mouse
0 Views •
Cited by 37 •
2018
In this study, we describe the posterior semicircular canal approach as a reliable method for inner ear gene delivery in neonatal mice. We show that gene delivery through the posterior semicircular canal is able to perfuse the entire inner ear.
06:26
Capturing Flow-weighted Water and Suspended Particulates from Agricultural Canals During Drainage Events
0 Views •
Cited by 2 •
2017
Nutrients present in particulate form can contribute significantly to the overall loads in agricultural drainage waters. This study describes a novel method to capture flow-weighted water and suspended particulates from farm canal drainage over the entire duration of the drainage event.
10:30
The C. elegans Excretory Canal as a Model for Intracellular Lumen Morphogenesis and In Vivo Polarized Membrane Biogenesis in a Single Cell: labeling by GFP-fusions, RNAi Interaction Screen and Imaging
0 Views •
Cited by 6 •
2017
The C. elegans excretory canal is a unique single-cell model for the visual in vivo analysis of de novo polarized membrane biogenesis. This protocol describes a combination of standard genetic/RNAi and imaging approaches, adaptable for the identification and characterization of molecules directing unicellular tubulogenesis, and apical membrane and lumen biogenesis.
04:36
Canalostomy for Local Drug Delivery into the Inner Ear of an Adult Mouse
0 Views •
2025
This video showcases canalostomy, a procedure that allows local drug delivery into the inner ear of a mouse through the semicircular canal with minimal damage to hearing and vestibular function. This method enables the inoculation of viral vectors, pharmaceuticals, and small molecules into the mouse's inner ear.
FAQs
The ampulla contains sensory hair cells that respond when head rotation causes endolymph to shift by inertia. This fluid movement acts against the hair cells and changes their electrical signals. The resulting signal provides the nervous system with information about rotational motion, allowing it to distinguish movement of the head from a stationary position.
Their roughly perpendicular arrangement allows the inner ear to represent rotational movement occurring in different spatial directions. Signals from the three canals can therefore contribute to a more complete description of head motion than a single canal could provide. This directional information supports spatial orientation and helps coordinate movement in changing physical environments.
The brain integrates electrical signals from the canals with information from the eyes and muscles. Comparing these sources helps coordinate posture, gaze, and movement as the head or body changes position. This integration is important because balance and orientation depend on combining rotational-motion signals with visual information and feedback about muscular activity.
Changes in endolymph movement and hair-cell signaling provide information about how the head is rotating, which contributes to the perception of motion. The brain interprets these signals together with visual and muscular information. Studying this process helps researchers examine how organisms maintain orientation while moving through environments that impose changing physical conditions.
Researchers can use knowledge of canal signaling to investigate vestibular disorders, which affect balance and spatial orientation. The relevant framework follows rotational head movement, endolymph displacement, hair-cell electrical responses, and the brain’s integration of sensory inputs. This perspective helps connect altered canal function with difficulties coordinating posture, gaze, or movement.
Semi-circular canal function provides a way to examine how organisms detect rotational movement and respond to changing physical environments. In animal behavior research, canal signals can be considered alongside visual and muscular information when studying orientation, movement, and posture. This connects inner-ear function with broader questions about how organisms navigate and adapt to environmental motion.