Rhomboid major vs minor

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The Rhomboid Major and Rhomboid Minor are two separate muscles that work together to attach the scapula to the spine. The Rhomboid Minor is located above the Rhomboid Major and performs the same function and action within the body. The Rhomboids play a key role in the stability of the scapula and are important for any upper limb movement. The Rhomboid Major and Rhomboid Minor are classified as skeletal muscles and are located underneath the trapezius in the upper back. The Rhomboid Major is thinner and flatter and twice as wide as the Rhomboid Minor, however both muscles resemble the shape of a Rhomboid. The Rhomboid Major and Rhomboid Minor produce scapular retraction, elevation of the scapula and inferior rotation of the scapula.

Rhomboid major vs minor

The rhomboid major is a skeletal muscle of the back that connects the scapula with the vertebrae of the spinal column. As the word rhomboid suggests, the rhomboid major is diamond-shaped. The major in its name indicates that it is the larger of the two rhomboids. The rhomboid major arises from the spinous processes of the thoracic vertebrae T2—T5 as well as the supraspinous ligament. It inserts on the medial border of the scapula , from about the level of the scapular spine to the scapula's inferior angle. The rhomboid major, like the rhomboid minor, is innervated by the ventral primary ramus via the dorsal scapular nerve C5. Both rhomboid muscles also derive their arterial blood supply from the dorsal scapular artery. The rhomboid major is considered a superficial back muscle. It is deep to the trapezius , and situated directly inferior to the rhomboid minor. The two rhomboids are sometimes fused into a single muscle. The rhomboid major helps to hold the scapula and thus the upper limb onto the ribcage. Other muscles that perform this function include the serratus anterior and pectoralis minor. Both rhomboids major and minor also act to retract the scapula, pulling it towards the vertebral column. The rhomboids work collectively with the levator scapulae muscles to elevate the medial border of the scapula, downwardly rotating the scapula with respect to the glenohumeral joint.

Clin Orthop Relat Res. The Rhomboid Major and Rhomboid Minor are classified as skeletal muscles and are located underneath the trapezius in the upper back.

In human anatomy, the rhomboid minor is a small skeletal muscle of the back that connects the scapula to the vertebrae of the spinal column. It is innervated by the dorsal scapular nerve. It acts together with the rhomboid major to keep the scapula pressed against the thoracic wall. The rhomboid minor arises from the inferior border of the nuchal ligament , from the spinous processes of the vertebrae C7—T1, and from the intervening supraspinous ligaments. It inserts onto a small area of the medial border of the scapula at the level of the scapular spine. It is innervated by the dorsal scapular nerve a branch of the brachial plexus , with most of its fibers derived from the C5 nerve root and only minor contribution from C4 or C6.

Among muscles, the rhomboids are very popular. Unfortunately, these muscles are often popular for the wrong reasons. They are often associated with upper back pain, particularly from sitting for prolonged periods as well as generalized postural problems. Anatomists named the rhomboid muscle for its shape. The rhomboids are part of the deep layer of muscles on the back and are located between the scapula and the spine. Interestingly, they are sometimes referred to as the Christmas tree muscles due to their shape.

Rhomboid major vs minor

The proper names for the muscles we call the rhomboids are Rhomboideus Major and Minor or the Rhomboidei. Although two different muscles, they are very difficult to distinguish from one another and perform the same actions together. They run obliquely downward from the spine to the inner edge of the scapula, on each side of the middle back and connect the vertebra in that area to the medial border of the scapula. They are largely covered by the more superficial trapezius muscle. See Rhomboid Trigger Points. The rhomboids get their name from their shape, the word rhomboideus referring to a diamond or kite shaped object. In geometry, a rhomboid is a parallelogram having adjacent sides of unequal length and oblique angles. The rhomboids are often said to be rhombus shaped but this is not entirely accurate as a rhombus and rhomboid are two different shapes. The rhomboid minor begins at the last vertebra of the neck cervical and ends at the first thoracic vertebra.

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Videos Videos. Contents move to sidebar hide. J Shoulder Elbow Surg. However, it may be required in some cases. Attach Treatment Poll. Clin Orthop Relat Res. Role of dorsal scapular nerve entrapment in unilateral interscapular pain. J Hand Surg Am. Make an appointment with your doctor if pain persists or worsens. They also protract the medial border of the scapula, keeping it in position at the posterior thoracic wall. It inserts onto a small area of the medial border of the scapula at the level of the scapular spine. Minor: nuchal ligament and spinous processes of C7 and T1 vertebrae; Major: spinous processes of T2 - T5 vertebrae. Hidden categories: Articles with short description Short description matches Wikidata Use American English from January All Wikipedia articles written in American English Use mdy dates from January All articles with unsourced statements Articles with unsourced statements from January Commons category link is on Wikidata Articles with TA98 identifiers. Before sharing sensitive information, make sure you're on a federal government site. The major in its name indicates that it is the larger of the two rhomboids.

The rhomboid major is a skeletal muscle of the back that connects the scapula with the vertebrae of the spinal column.

Treatment for scapular instability may include surgery followed by physical therapy or occupational therapy. Major: spinous processes of T2 - T5 vertebrae. Cases Cases. Rhomboid major indicated in red. The Rhomboid Major and Rhomboid Minor are classified as skeletal muscles and are located underneath the trapezius in the upper back. J Ultrasound Med. You are not required to obtain permission to distribute this article, provided that you credit the author and journal. Both rhomboids receive innervation from the dorsal scapular nerve, and their vascular supply the dorsal scapular artery. Winged scapula caused by rhomboid paralysis: a case report. Review Questions Access free multiple choice questions on this topic. Retrieved January 14, J Anat. However, complications may arise as the grafts have been known to fail and weaken over time. Attach Treatment Poll. Skeletal muscle of the upper back.