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The key to understandis the red nucleus situated in the mesencephalon.
These bilateralnucleiinfluence onlythe upper limbs increasing, if working properly, the muscular flexor tone.
Strokes sparing the brainstem, and so the red nuclei,will cause upper limb flexion.By contrast, lesionsinvolving the red nucleus or itsprojectionswill cause upper limb extension.
The lower limbs are not affected by the red nuclei. They undergo just the control of the cortex, that normally inhibits the extensor tone of the lower limbs. A stroke blocking this control will cause lower limbs extension.
Depending on the location, different results are so expected.
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What are flexors and extensors in the upper arm?
FLEXORSBiceps brachia- Primarily forearm supination, but also functions in elbow flexion, shoulder flexion, and shoulder adductionChoracobrachialis- Shoulder flexion, shoulder adductionBrachialis- Elbow flexionEXTENSORSTriceps Brachii- Powers elbow extension
Why are there compartments in the lower extremities and not the upper extremities?
There are compartments in both the upper and lower extremities.
The upper stratosphere is cooler than the lower stratosphere.?
Is the upper stratosphere is cooler than the lower stratosphere?\
What is meant by upper and lower Egypt?
Although Upper Egypt is actually the southern part of Egypt on a compass, it is called Upper Egypt because its elevation is higher than Lower Egypt which is the northern part of Egypt on a compass but has lower elevation and is therefore is called Lower Egypt.
Is Michigan the Upper Peninsula lies south of the lower Peninsula?
Upper Peninsula lies North of the Lower Peninsula.
Bending the lower arm up towards the upper arm?
it is called curl
What are flexors and extensors in the upper arm?
FLEXORSBiceps brachia- Primarily forearm supination, but also functions in elbow flexion, shoulder flexion, and shoulder adductionChoracobrachialis- Shoulder flexion, shoulder adductionBrachialis- Elbow flexionEXTENSORSTriceps Brachii- Powers elbow extension
Bending the knee joint to bring the lower-leg and upper-leg bones closer together?
The answer is: A. Flexion : )
What is it called if the lower leg is straightened away from the upper leg?
extension
What does the word hyperextension mean?
Hyperextension means the extension of a joints, muscles or tendons past their normal range of movement.In exercise routines it is a workout routine that extends the spinal region, the lower, mid and upper back especially the erector spinae. These are the large group of muscles that are the main movers of extension, lateral flexion and rotation of the spine.
What are the major muscles of the muscular system?
Femour muscle,calf mucle,=====================================================The major muscles of the body would be:A) Anterior Upper Body:Pectoralis Major (involved with shoulder horizontal adduction and internal rotation)Deltoid Anterior, Middle and Posterior Fibers (shoulder flexion, abduction , horizontal abduction respectively)Rectus Abdominal (abs) (Flexion of the trunk)Oblique Muscles (lateral rotation of the trunk and pelvis)B) Posterior Upper Body:Latismuss Dorsi (shoulder extension and external rotation)Trapezius (Upper fibers raises the scapula upwards also involves with movement of the neck, while middle and lower fibers retract it)C) Arms:Biceps brachii (forearm flexion and supination, aids in shoulder flexion thru long head)Triceps brachii (elbow extension)Wrist Flexors and extensorsD) Pelvis and Hips:Glutues Maximus ( Hip Extension)Iliopsoas (Hip Flexion)Tensor Fascia lata , Glutues Medius and Minus (Hip Abduction, Stabilize body during walking)Hip AdductorsRectus femoris and Quadriceps (Knee Extension, Rectus Femoris aids in Hip Flexion)Hamstrings (Knee Flexion, Biceps Femoris aids in Hip Extension)Calf Muscles (mainly Gastrocnemius involved in ankle planter flexion)although there are many other skeletal muscles with major functions (e.g Rotator cuff: stabilize shoulder joint , and Anconeus which stabilize elbow joint.. and many more) these ones above are considered the major muscles of the body by many
What are the muscles in the upper arm that cause it to straighten?
Tricep brachii is responsible for extension (straightening) of the arm at the elbow. There are 3 heads of the Tricep; the long, lateral and medial heads. The Tricep is an antagonist of the bicep and brachialis muscles of the upper arm, which both assist in flexion at the elbow joint.
What upper in Upper Normandy refer to?
opposite upper is lower Normandy.What do upper and lower refer to?
Where did horus live?
He lived some where in lower Egypt. But lower Egypt is upper Egypt because upper is lower and lower is upper.
What type of activity is doing push ups?
At the elbow in the downward faze of the press up your elbows movement is flexion as is is decreasing in size. your shoulders movement is extension as the muscle is increasing in size. on the upward phase it is the exact same but the opposite way around... (elbow - extension and shoulder - flexion)
What type of joint is found in the kne3e?
The knee joint is a synovial joint, one of the largest, most complex, and most frequently injured joints. This joint involves the femur (upper leg), tibia (lower leg) and the patella.This called the tibiofemoral joint is supported by a joint capsule, cartilage, and numerous ligaments and muscle tendons.It permits flexion and extension and, with knee flexed, some internal and external rotation.
Why were the crowns of upper and lower Egypt combined?
The crowns of upper and lower Egypt were combined because King Menes combinded upper and lower Egypt. He decidd to combine upper and lower Egypt and the crowns.
