Tarsal Contact
Tarsal Contact - Related Videos
01:13
Contact Angle
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2023
When a solid is dipped inside a liquid, the liquid surface becomes curved near the contact. For some solid–liquid interfaces, the liquid is pulled up along the solid, while for others, the liquid surface is convex or depressed near the solid surface. This phenomenon can be explained using the concept of cohesive and adhesive forces. The adhesive force is the molecular force between molecules of different materials, that is, between the molecules of the solid and the liquid. The cohesive force...
08:25
Contact Hypersensitivity as a Murine Model of Allergic Contact Dermatitis
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Cited by 2 •
2022
Contact hypersensitivity (CHS) is a murine experimental model of allergic contact dermatitis (ACD). CHS is based on sensitization with reactive hapten by painting the shaved skin of the chest and abdomen, with a subsequent ear skin challenge with a diluted hapten, causing a swelling reaction that is assessed in various ways.
03:55
Larval Contact Assay: A Procedure to Evaluate Mosquito Larval Mortality following Direct Contact with Test Larvicidal Compound
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2025
In this video, we describe the larval contact assay to evaluate the toxicity of the dopamine receptor antagonist amitriptyline on the third instar stage larvae of mosquitoes, known vectors of several human infectious diseases. Assessing the larval mortality upon incubation with different amitriptyline concentrations over different time intervals helps determine its lethal concentration 50.
08:28
Development of an In Vitro Ocular Platform to Test Contact Lenses
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Cited by 14 •
2016
Current in vitro models for evaluating contact lenses (CLs) and other eye-related applications are severely limited. The presented ocular platform simulates physiological tear flow, tear volume, air exposure and mechanical wear. This system is highly versatile and can be applied to various in vitro analyses with CLs.
01:26
Intercellular Communication in a Contact-Free Co-Culture of Neurons and Oligodendrocytes
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2025
Begin with a contact-free co-culture of neurons and oligodendrocytes.A permeable membrane separates the neurons in the transwell insert from the oligodendrocytes at the bottom well.Add potassium to the insert to raise extracellular potassium levels, which inhibits the efflux of intracellular potassium.The potassium accumulation depolarizes the neurons, triggering the opening of voltage-gated calcium channels and allowing calcium influx.The influx stimulates the release of excitatory...
FAQs
These sensory dimensions provide complementary information about the interaction with a substrate. Pressure and force indicate loading, vibration signals surface-related mechanical changes, and position information contributes to awareness of foot placement. Together, their activity gives the central nervous system a richer basis for adjusting posture, balance, gait, and movement decisions.
Loading the tarsus activates mechanosensory receptors and changes the sensory input reaching the central nervous system. That feedback can be integrated with ongoing motor control to regulate posture and balance during locomotion. Its importance lies in linking contact with the substrate to coordinated adjustments rather than treating movement as independent of surface interaction.
Tarsal contact contributes sensory evidence that the nervous system can combine with motor activity during movement. Signals from receptors inform the central nervous system about pressure, force, vibration, and position, while resulting behavioral adjustments reveal how sensation influences action. This relationship provides a way to study the neural coordination of movement.
An analysis can relate contact-associated sensory signals to movement and behavior. Researchers may examine how mechanosensory information is transmitted through sensory neurons to the central nervous system and how that information corresponds with posture, balance, gait, or locomotor decisions. The outcome is a connection between contact-related input and observable sensorimotor control.
This approach is useful when the research question concerns how sensory feedback shapes locomotion or stabilizes the body. It supports investigation of neural control of movement, sensorimotor integration, and the relationship between substrate interaction and behavioral choice. Contact-related signals can therefore help explain both routine coordination and responses to changing environmental conditions.
A change in surface conditions can alter the pressure, force, vibration, or positional information detected at the tarsus. The nervous system can use these altered signals to modify posture, balance, gait, or locomotor decisions. Studying such responses reveals how animals adapt behavior when the sensory consequences of contact no longer remain constant.