Archive for the ‘Anatomy’ Category

Lymphatic System

Posted on May 27th, 2009, by relax

You can think of the lymph system as your secondary circulatory system and part of your immune system.   This parallel pathway which carries lymph fluid initially forms in the connective tissue.  It carries large proteins, pathogens and toxins and transports these and many other components into lymphatic nodes which act as active purification centers.  These lymphatic nodes are important features of our immune [...]

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Muscle of the Month (January 2007): Iliocostalis

Posted on January 17th, 2007, by relax

The Iliocostalis, oriented vertically on either side of the spine, are muscles within the group of muscles in the back referred to as the erector spinae.  The erector spinae assist in the motion of extending the trunk.  The Iliocostalis muscles have at least one end attached to a rib and the other end attached to either [...]

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Muscle of the Month (December): Quadratus Lumborum

Posted on January 17th, 2007, by relax

The quadratus lumborum or the ‘QL’ for short, is an extensor of the lumbar vertebrae, bilaterally, and a lateral flexor unilaterally.  It functions in respiration by securing the 12th rib.  It is anchored to the pelvic bone and to each vertebrae of the lumbar spine, on both sides of the body.  When you move one hip up as in [...]

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Muscle of the Month (November): Pectoralis Major

Posted on December 8th, 2006, by relax

The pectoralis major or ‘pecs’ is a large, flat, square muscle on each side of the upper chest, tapering toward the upper shoulder.  The clavicular, or upper fibers of the pectoralis major are effective in flexing the shoulder joint, while the sternal/abdominal fibers extend the flexed joint.  Both serve as powerful lifters and are important in the [...]

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Muscle of the Month (October): Soleus

Posted on October 7th, 2006, by relax

Soleus is Latin for sole, a flat fish.  The soleus is a broad, flat muscle in the calf of the leg.  It is a small  muscle of the lower posterior leg, located just under the gastrocnemius muscle.  The soleus is a more powerful plantarflexor than the gastrocnemius.  The soleus is originates on the tibia and fibula and inserts [...]

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Muscle of the Month (September): Psoas

Posted on September 10th, 2006, by relax

The psoas in a powerful core muscle of the body.  This is a key muscle for many activities especially, those involving running. The tendons of the psoas major muscle and another muscle called the iliacus converge to a single insertion called the iliopsoas.  The iliopsoas is a strong flexor of the hip joint, and a [...]

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Muscle of the Month (August) Gastrocnemius

Posted on August 20th, 2006, by relax

The gastrocnemius or what many refer to as the “calf” muscle, is the one of the larger muscles of the leg, and the largest muscle of the lower leg.  Its main function is in flexing the knee, and with the aid of other muscles it also planarflexes the ankle joint.  It extends from the femur to [...]

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Muscle of the Month (July) Rhomboids

Posted on July 24th, 2006, by relax

The rhomboids reside just below the neck, and are also called the middle back.  The rhomboids are involved in scapular stabilization and movement, and are a large factor in arm movement.  The rhomboids actually consist of two sets of two muscles each.  Each set resides on one side of the spine, and are made up [...]

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Muscle of the Month (June): Trapezius

Posted on June 22nd, 2006, by relax

The trapezius is one of a pair of muscles, which, when combined, form the trapezium.  The trapezius is a large, flat muscle, which begins at the base of the skull, running down the length of the spin to the lower back.  It also attaches to the back of the shoulder, forming a large triangle.  The [...]

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