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Levator Scapulae Muscle Laterally

ANATOMY

The origin of Levator Scapulae Muscle is from the dorsal tubercles (wart like projections) of the Transverse Process of the Cervical Vertebrae One to Four (C1-C4). The muscle ends on the superior angle and medial side of Scapula.

At its origin it lies deep in the Sternocleidomastoideus muscle (muscle in superficial layers of anterior portion of Neck) which is adjacent to the Splenius Capitis and deep to the Trapezius in lower portion.

It is in passage of Spinal Accessory Nerve in middle part and Dorsal Scapular Nerve also passes through it.

 

INNERVATION

Levator Scapulae Muscle receives its nerves supply from two or three branches of Fourth and Fifth Cranial Nerves.

 

BLOOD SUPPLY

The blood supply to Levator Scapulae Muscle is provided by Dorsal Scapular Artery.

 

FUNCTION

The primary function of this muscle is to lift the Scapula. If the person experience a stiff shoulder or neck or carry a heavy bag this muscle is at work.

 

CLINICAL SIGNIFICANCE

This muscle is involved in many motions like swimming, throwing and some sports. Excessive use of this muscle causes a condition called Levator Scapulae Syndrome which causes strain and micro tears in muscle. Symptoms of this disease are as follows.

  • Deep pain on the upper back of shoulder blade.

  • Pain due to prolonged sitting in one posture.

  • Pain often caused by turning the Neck.


ANATOMY

The origin of Levator Scapulae Muscle is from the dorsal tubercles (wart like projections) of the Transverse Process of the Cervical Vertebrae One to Four (C1-C4). The muscle ends on the superior angle and medial side of Scapula.

At its origin it lies deep in the Sternocleidomastoideus muscle (muscle in superficial layers of anterior portion of Neck) which is adjacent to the Splenius Capitis and deep to the Trapezius in lower portion.

It is in passage of Spinal Accessory Nerve in middle part and Dorsal Scapular Nerve also passes through it.

 

INNERVATION

Levator Scapulae Muscle receives its nerves supply from two or three branches of Fourth and Fifth Cranial Nerves.

 

BLOOD SUPPLY

The blood supply to Levator Scapulae Muscle is provided by Dorsal Scapular Artery.

 

FUNCTION

The primary function of this muscle is to lift the Scapula. If the person experience a stiff shoulder or neck or carry a heavy bag this muscle is at work.

 

CLINICAL SIGNIFICANCE

This muscle is involved in many motions like swimming, throwing and some sports. Excessive use of this muscle causes a condition called Levator Scapulae Syndrome which causes strain and micro tears in muscle. Symptoms of this disease are as follows.

  • Deep pain on the upper back of shoulder blade.

  • Pain due to prolonged sitting in one posture.

  • Pain often caused by turning the Neck.

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