The myotendinous junction (MTJ) is the interface between muscle and tendon and where force is transmitted between the two tissues. It is also a common location for strain injuries in sports. Most of these can be prevented by heavy eccentric exercise.
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What is Myotendinous strain?
The myotendinous junction (MTJ) is the interface between muscle and tendon and where force is transmitted between the two tissues. It is also a common location for strain injuries in sports. Most of these can be prevented by heavy eccentric exercise.
What does Myotendinous mean?
Adjective. myotendinous (not comparable) relating to, or connecting a muscle and a tendon quotations ▼
Where is the Myotendinous Junction?
muscle-tendon interface
The myotendinous junction (MTJ) is a complex specialized region located at the muscle-tendon interface that represents the primary site of force transmission. Despite their different embryologic origins, muscle and tendon morphogenesis occurs in close spatial and temporal association.
What is a Myotendinous junction tear?
A musculotendinous junction tear is classified as a type 1 tear if it is a primary tear, or a type 2 retear if it is secondary, occurring after prior rotator cuff repair. These tears are simultaneously classified by their tear pattern, into A, B or C, as follows.
Where is the infraspinatus muscle?
shoulder
Your infraspinatus muscle is a thick triangular muscle located at the back of your shoulder. It’s attached to the top of your upper arm bone (humerus) and your shoulder blade (scapula).
What is gastrocnemius muscle?
The main muscles in the calf are: Gastrocnemius: This muscle is just under your skin at the back of the lower leg. Because the gastrocnemius is close to the skin’s surface, you can often see its outline. It forms the bulk of your calf muscle.
What is supraspinatus Myotendinous Junction?
Supraspinatus myotendinous junction injuries are uncommon at MRI. These lesions invariably involve the anterior bundle of the supraspinatus muscle and may occur with a concomitant insertional tendon tear. High-grade chronic injuries lead to selective atrophy and fatty infiltration of the anterior supraspinatus muscle.
What is Epimysium and what is its function?
Epimysium (plural epimysia) (Greek epi- for on, upon, or above + Greek mys for muscle) is the fibrous tissue envelope that surrounds skeletal muscle. It is a layer of dense irregular connective tissue which ensheaths the entire muscle and protects muscles from friction against other muscles and bones.
What is interstitial tear?
Interstitial tears (Figure 6), also known as intrasubstance tears or intramuscular cysts, can occur in isolation within the tendon without articular- or bursal-sided extension, or they can also occur in combination with either articular- or bursal-sided partial thickness tears.
What type of muscle is infraspinatus?
Infraspinatus is a thick triangular muscle that occupies the majority of the dorsal surface of the scapula….Infraspinatus muscle.
| Origin | Infraspinous fossa of scapula |
|---|---|
| Action | Shoulder joint: Arm external rotation; Stabilizes humeral head in glenoid cavity |
| Innervation | Suprascapular nerve (C5, C6) |
Is infraspinatus superficial?
As one of the four muscles of the rotator cuff, the main function of the infraspinatus is to externally rotate the humerus and stabilize the shoulder joint….
| Infraspinatus muscle | |
|---|---|
| Origin | infraspinous fossa of the scapula |
| Insertion | middle facet of greater tubercle of the humerus |
What is a calf strain?
A calf strain is an injury to the muscles in the back of your leg, below the knee. The calf is made up of 9 muscles. It is possible to injure 1 or more of these muscles at the same time. Calf strains can occur when a person is performing high-speed motions like running and jumping.