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Knee Rotation:
- as extension progresses, shorter, more highly curved lateral condyle exhausts its articular surface and
is checked by ACL, whereas larger and less curved medial condyle continues its forward
roll & skids backward, assisted by tightening of PCL;
- result is a medial rotation of femur (external tibial rotation) that tightens collateral ligaments, & joint is "screwed home",
to use mechanical phraseology;
- flexion of extended knee is preceded by lateral rotation of femur (or medial rotation of tibia), usually produced by popliteus;
- this rotation relaxes the tension of the collateral ligaments sufficiently to permit flexion;
Wiki User
∙ 15y ago
Wiki User
∙ 8y agoThe medial hip rotators are the gluteus medius, gluteus minimus, tensor fascia lata, and the gracilis and the the muscles that assist in the medial rotation are the adductor longus and the pectineus.
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What is the action of the startorius muscles?
Flexion, abduction, and lateral rotation at the hip, and flexion and medial rotation at the knee.
If the medial hip rotators are tight what action will they impede?
If medial hip rotators are tight, then they will impede lateral hip rotation because lateral hip rotation requires the medial hip rotators to stretch to allow the lateral hip rotators to contract and rotate the hip laterally.
What is it called when a limb at the shoulder or hip turns in toward the midline?
Medial rotation is what this is called.
What does the Tensia fascia late muscle do?
the tensia fascia muscle does abduction, medial rotation and flexion of the hip joint
What are the antagonist muscles to external rotation of the hip?
One of them is the tensor fascia lata.
What is medial rotation of the hand?
Medial rotation of the forearm is called pronation in its broadest sense, so "medial rotation of the arm" most probably refers to movement at the shoulder.The best example is if you flex your forearm at 90° to your arm, and you bring your hand to your midline, this is medial rotation of the arm at the shoulder.Medial rotation of the arm is the rotation of the humerus(arm bone) around its long axis (imagine a line from elbow to shoulder).
What is the antagonist muscle to the gluteus maximus?
TFL does hop joint Flexion Abduction Medial rotation so you just need to find a muscle that does Extension adduction, and lateral rotation Gluteus Maximus does all those actions
What are muscles are used when you bend your hip?
The mustles are the ones that are in the hip thrust...
What muscles are used in a split?
Hamstrings, hip abductors, rectus femoris(one of the quadriceps muscles) and hip flexor.
What regions does the ventral rami of the spinal nerves form nerve plexuses?
Cervical- diaphragm & muscles of shoulder & neck brachial- deltoid muscle of shoulder, triceps & extensor muscles of forearm, flexor muscles of forearm & some muscles of hand, flexor muscles of arm, wrist & many hand muscles lumbar- lower abdomen, buttocks, anterior thighs, and skin of anteromedial leg & thigh, adductor muscles of medial thigh & small hip muscles; skin of medial thigh & hip joint sacral- lower trunk & posterior surface of thigh & leg, lateral aspect of leg & foot, posterior aspect of leg & foot, gluteus muscles of hip
Is the hip medial to the belly button?
Medial is middle,- and the belly button is in the middle of the body- so the hip is going to be outside that- lateral.
Concentric contraction of the hamstrings causes which joint action?
knee flexion and hip extension.Biceps femoris also: knee external rotation and hip external rotation.Semi tendinosus and Semi membranosus also: knee internal rotation and hip internal rotation.hamstrings eccentric contraction causes knee extension and hip flexion, whilst the antagonist muscles are passive.
