Extensor Sentence Examples
This runs down the anterior and outer side of the upper arm, and is attached to the proximal tendon of the extensor metacarpi radialis longus, a little below the outer condyle of the humerus.
It is a brief extension of the limb at the knee-joint, due to a simple contraction of the extensor muscle, elicited by a tap or other short mechanical stimulus applied to the muscle fibres through the tendon of the muscle.
If the sensory nerves of the extensor muscle be severed, the "jerk" is lost.
Stretching of the muscles antagonistic to the extensors - namely, of the flexor muscles - reduces the jerk by inhibiting the extensor spinal nerve cells through the nervous impulses generated by the tense flexor muscles.
The motor cells of the extensor muscles, when preoccupied by cerebral influence, appear refractory.Advertisement
There is also a much smaller second extensor on the outer side of this in each limb, the lateral extensor of the phalanges.
In the fore-leg the tendon of this muscle (which corresponds with the extensor minimi digiti of man) receives a slip from that of the principal extensor, and is inserted into the first phalanx.
In the hind-leg (where it is the homologue apparently of the peroneus brevis of man) the tendon becomes blended with that of the large extensor.
A strong ligamentous band behind the metapodium, arising from near the upper extremity of its posterior surface, divides into two at its lower end, and each division, being first connected with one of the paired upper sesamoid bones, passes by the side of the first phalanx to join the extensor tendon of the phalanges.
Limb tone is increased with brisk tendon reflexes, ankle clonus, and bilaterally extensor plantar responses.Advertisement
As mentioned earlier strong hip extensor support allows a forward trunk lean to minimize the loading response flexion torque at the knee.
For example, an athlete recovering from tennis elbow will need to strengthen the wrist extensor muscles to prevent the injury recurring.
Tennis Elbow Tennis Elbow is pain in the region where the forearm extensor muscles fasten to the lateral epicondyle of the humerus.
The hip extensor action of the lower gluteus maximus contributes to knee stability through two mechanisms.
For measuring explosive power & efficiency in the lower limb extensor muscles.Advertisement
This tendon is called the common extensor tendon (please see diagram, below ).
On the anterior side of the tibia, is the intercondylar sulcus, which is crossed by an oblique bridge of tendon or bone, acting as a pulley for the tendon of the extensor digitorum communis muscle.
When a person closes the hand to make a fist, a tendon known as the extensor tendon is stretched.
After the hand is opened, the extensor tendon relaxes and returns to its normal position underneath the skin, but it is now carrying bacteria with it.
There is a patella, intercalated in the tendon of the femori-tibialis or extensor cruris muscle.Advertisement
Consequently only a few of the original extensor muscles have been preserved, but these are much modified into very independent organs, notably the extensor metacarpi radialis longus, the ext.