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Representing a complete sarcomere the smallest functional unit of a myofibril of striated muscle with Z lines or disks at either end, and scaled to tens of thousands of times actual size, this first-ever working model graphically illustrates the sliding filament theory of skeletal muscle contraction. Reflecting the most recent advances in electron microscopic ultrastructure, the model unequivocally demonstrates that individual myofilaments neither change shape nor shorten, rather the proteins actin and myosin slide past one another, resulting in the shortening of the sarcomere itself. Clearly depicted are the arrangement, configuration, and function of thin filaments (actin, troponin, tropomyosin), and thick filaments (myosin, myosin heads), the M-line and Z-line.

Invaluable not only for physiology classes, but also for athletic trainers, sports medicine specialists, physical and massage therapists, the working sarcomere model can also plainly demonstrate muscle tone, muscle cramps, knots and tears. Included with the sarcomere model is a translucent sheath (shown at right) representing the sarcoplasmic reticulum which can be wrapped around the sarcomere to elicit discussion and elucidate understanding of the role calcium ion transport plays in muscle contraction.

Measuring 22"L 6"W 8"H inches overall, the working sarcomere model comes complete with sarcoplasmic reticulum and user manual. Original Sarcomere concept by Mark Bigelow, LMT, Licensed Masssage Therapist. Patent Pending.

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Semi-articulating right rotator cuff model has an encapsulated humerus that is removable from the capsular ligament of the shoulder joint. Model includes ligaments and the infraspinatus, teres minor, teres major, subscapularis and supraspinatus muscles. Includes removable patient education card and plastic base. Size: 5" x 6" x 6".

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Articulating right knee with ligaments: meniscus, fibular collateral, tibial collateral, anterior and posterior cruciate, and patellar ligament with patella. The extended femur and patellar ligament are connected to top section of the quadracep. Includes removable patient education card and plastic base. Size: 3-1/2" x 3" x 10".

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Articulating right hip joint features the following muscles: gluteus medius, piriformis, gemellus superior and inferior with obturator internus and iliacus showing branch of psoas major. Includes removable patient education card and plastic base. Size: 5" x 4-3/4" x 8-1/4".

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Life-size model of the right elbow features the bicep, tricep, flexor carpi radialis, pronator teres and extensor carpi radialislongus muscles. The median, ulnar, and radial nerves; the ulna, humerus, and radius bones; as well as the palmar radiocarpal, flexor retinaculum, and the palmar ulnocarpal ligaments are also featured. Includes removable patient education card and plastic base. Size: 19" x 3" x 6".

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The bones, muscles, tendons, ligaments, nerves, arteries, and veins are all featured in this high quality 4 part model of the hand and lower forearm. The dorsal side of the hand shows the extensor muscles as well as portions of the tendons at the wrist as they pass under the extensor retunaculum. The palmar face of the hand is represented in three layers, the first two removable to allow detailed study of the deeper anatomical layer of the hand. In addition clinically important structures such as the median nerve and superficial palmar arterial arch can be explored in detail in the hand model. The deepest anatomical layer allows for study of the intrinsic muscles and deep palmar arterial arch in addition to other details of the anatomy of the hand.

Measurements:33x12x12 cm
Weight: 0,4 kg

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This anatomically detailed model of the foot and lower leg can be disassembled into 6 removable parts for detailed study of the foot and ankle. The foot skeleton features not only the bones but also the muscles, tendons, ligaments, nerves, arteries, and veins of the foot. The frontal view of the foot model features the extensor muscles of the lower leg. The tendons can be followed on their passage under the transverse and crucial crural ligaments all the way to their insertion points. In addition all tendon sheaths of the foot area are visible. On the dorsal portion of the footl the gastrocnemius muscle is removable to reveal deeper anatomical elements. The sole of the foot is represented in three layers; the first layer displaying the flexor digitorum brevis. This muscle can be removed from the foot revealing the quadratus plantae, the tendon of the flexor digitorum longus, and the flexor hallucis muscle. This second layer is in turn removable to display even deeper anatomical details of the foot. This foot skeleton model with ligaments and muscles is the best of its kind in quality and value.

Measurements:23x26x19 cm
Weight: 1,1 kg

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Full size model features brain stem, occipital bone, atlas and axis through C7, with herniated disc, T1 and T3. This model has a soft cerebellum, full nerve with right side brachial plexus. Muscles include suboccipital triangle, longus capitis, levator scapulae, scalenus medius posterior and anterior. The right first and second ribs are also featured and include cartilage.

Model Size: 5-1/2" x 6-1/2" x 10"
Card Size: 6-1/4� x 8-1/4�
Base Size: 8-3/4" x 6-1/4"

1. Made of durable high quality materials.
2. Education card included with model.

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Completing our set of joints and their muscles, we are proud to introduce this 12 part knee model. The knee joint shows different removable muscles and muscle portions of the knee area. Color coded and raised areas indicate the muscle origin and insertion points on the femur, tibia, and fibula associated with the knee joint. In addition, parts of the fibular and tibial collateral ligaments are represented in this knee joint model. All the muscles of the leg are easily removable to permit study of the deeper anatomical layers of the knee joint. *We are currently taking pre-orders for the product.� Product will not be available until July 2009. Measurements: 33x17x17 cm Weight: 0,9 kg

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The following muscles can be detached in this life-size muscular arm model:

* Deltoid muscles
* Biceps muscle of arm
* Triceps muscle of arm
* Long palmar muscle with radial flexor muscle of wrist
* Brachioradial muscle with radial extensor muscle of wrist

High quality muscular arm supplied on base. Key card: L/G/E/F/S/P/J
Measurements: Length: 70 cm
Weight: 3 kg

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Muscle Arm, 6 part, 3/4 Life Size This muscled arm model illustrates both the superficial and deeper muscles, five of which are removable from the muscled arm. Tendons, vessels, nerves and bone components of the left arm and shoulder are shown in great detail on this high quality muscle model. Parts numbered on muscled arm for easy identification of parts.

Measurements: 60x18x18 cm
Weight: 1,9 kg

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The muscular leg model illustrates both the superficial and deeper muscles, eight of which are removable. Tendons, vessels, nerves and bone components of the left leg and foot are shown in great detail in the muscular leg. All parts of muscular leg numbered. Muscular leg delivered on removable stand.

Measurements: 77x26x26 cm
Weight: 4 kg

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This life-size muscular leg model can be disassembled into upper and lower leg. The following muscles can be detached from the muscular leg:

* Long head of biceps femoris muscle with semitendinous muscle
* Sartorius muscle
* Gluteus maximus muscle
* Rectus femoris muscle
* Gastrocnemius muscle

This high quality muscular leg model is supplied on base.
Key card: L/G/E/F/S/P/J
Measurements: 100 cm
Weight: 7 kg

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Muscled leg is a life-sized replica of the lower leg, ankle, and foot. The muscle leg model is supported on removable base for easy viewing of this amazing joint. Features of lower muscular leg:

* Detachable knee cross section to expose the articular surfaces
* Detachable gastrocnemius muscle
Dimensions of muscled leg: 60 x 26 x27 cm, 2.1 kg
Measurements: 58 cm
Weight: 2,6 kg

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Set of four models: Hip, Knee, Elbow and Shoulder. Each model is highly detailed, showing all major ligaments and muscles of the joint. Each model comes with patient education card identifying anatomical features and removable base.

* Hip is 5" x 4-3/4" x 8-1/4"
* Knee is 3-1/2" x 3" x 10"
* Elbow is 19" x 3" x 6"
* Shoulder is 5-1/2" x 6" x 6".