Related Experiment Video
Updated: May 19, 2026
11:36
Ex vivo Mechanical Loading of Tendon
Published on: May 28, 2007
[The multifibrillar network of the tendon sliding system]
1Institut aquitain de la main, 56, allée des Tulipes, 33600 Bordeaux-Pessac, France. adf.guimberteau@wanadoo.fr
Annales De Chirurgie Plastique Et Esthetique
|August 28, 2012
Summary
The study suggests current tendon sliding theories are incorrect. A new theory proposes a unique adaptable tissue enabling frictionless tendon movement, potentially applicable throughout the human body.
Area of Science:
- Biomechanics
- Tissue Engineering
- Human Anatomy
Context:
- Current understanding of tendon sliding is based on outdated or incomplete models.
- In vivo biomechanical studies are crucial for understanding soft tissue dynamics.
- The complex interplay between connective tissues influences joint mobility.
Purpose:
- To challenge the existing paradigm of tendon sliding.
- To propose a novel theoretical framework for tendon sliding.
- To investigate the microstructural basis of tendon function.
Summary:
- The study analyzed 215 in vivo dissections, with 65 video-recorded, to re-evaluate tendon sliding mechanisms.
- Authors propose a new theory involving a mechanical adaptable multimicrovacuolar and fibrillar tissue that facilitates complete sliding.
- This proposed tissue, featuring a polyhedric fibrillar framework and microvacuolar gel, offers a new perspective on a ubiquitous concept in human physiology.
Impact:
- This research could redefine our understanding of tendon mechanics and injury.
- The findings may influence the development of new surgical techniques and rehabilitation strategies.
- The proposed tissue model has implications for regenerative medicine and biomaterials development.
Related Concept Videos
01:19The Neuromuscular Junction
The nervous system consists of complex motor neuron circuits, including upper motor neurons originating from the cerebral cortex and lower motor neurons starting in the spinal cord, coordinating both voluntary and involuntary movements. Among these, somatic motor neurons activate skeletal muscles and are classified into alpha, beta, and gamma types. Alpha neurons are vital for voluntary movement coordination, while gamma neurons adjust muscle spindle sensitivity, and the function of beta...
01:26Tension Response at Adherens Junctions
The adherens junctions that anchor cells together are multi-protein complexes that dynamically adapt to mechanical stimuli such as tensile forces and shear stress. Mechanosensory proteins in these junctions can sense such mechanical stimuli and undergo a shift in their conformation, resulting in an altered function — a process called mechanotransduction.
α-Catenin as a Mechanosensory Protein
The α-catenin of adherens junctions is an allosteric protein with three VH (vinculin homology) domains...
α-Catenin as a Mechanosensory Protein
The α-catenin of adherens junctions is an allosteric protein with three VH (vinculin homology) domains...
01:22Somatic Spinal Reflexes
Somatic spinal reflexes are rapid, involuntary muscular responses to external stimuli that involve the somatic musculature and the spinal cord.
One of the most well-known somatic spinal reflexes is the stretch reflex, which is activated by the sudden stretching of a muscle. This reflex involves the activation of specialized sensory receptors called muscle spindles, which are located in the muscle tissue and detect changes in the length and speed of muscle contractions. When a muscle is suddenly...
One of the most well-known somatic spinal reflexes is the stretch reflex, which is activated by the sudden stretching of a muscle. This reflex involves the activation of specialized sensory receptors called muscle spindles, which are located in the muscle tissue and detect changes in the length and speed of muscle contractions. When a muscle is suddenly...
01:21Layers of Connective Tissue Proper
Fascia, a thin layer of fibrous connective tissue, is distributed throughout the body. It demarcates and forms a supportive covering over skeletal muscles, bones, blood vessels, and organs. There are three main types of facia— superficial fascia, deep fascia, and subserous fascia. These are all present at different depths in the body. Fascia reduces the friction and permits muscles, joints, and organs to easily slide against each other, facilitating movement of the body and preventing tearing...
01:12Gross Anatomy of Skeletal Muscles
The connective tissues play a significant role in arranging the muscle fibers into a hierarchical structure that forms a complete muscle. Consider a muscle like the bicep brachii, commonly called the bicep. This muscle comprises thousands of muscle fibers enclosed by a protective layer of connective tissue called the endomysium. The endomysium is primarily composed of reticular fibers, a type of thin collagen fiber. It allows the exchange of nutrients and waste products at the fiber level,...
01:03Structural Joints: Fibrous Joints
Fibrous joints are a type of joint where the bones are connected by fibrous connective tissue. These joints provide stability and minimal to no movement between the articulating bones. There are three types of fibrous joints.
Suture
All the bones of the skull, except for the mandible, are joined to each other by a fibrous joint called a suture. The fibrous connective tissue found at a suture strongly unites the adjacent skull bones and thus helps to protect the brain and form the face. In...
Suture
All the bones of the skull, except for the mandible, are joined to each other by a fibrous joint called a suture. The fibrous connective tissue found at a suture strongly unites the adjacent skull bones and thus helps to protect the brain and form the face. In...