What are the muscles of the thorax?
There are five muscles that make up the thoracic cage; the intercostals (external, internal and innermost), subcostals, and transversus thoracis. These muscles act to change the volume of the thoracic cavity during respiration.
What are the muscles of the shoulder girdle?
The five muscles that comprise the function of the shoulder girdle are the trapezius muscle (upper, middle, and lower), levator scapulae muscle, rhomboid muscles (major and minor), serratus anterior muscle, and pectoralis minor muscle.
What muscle is found on the lateral aspect of the shoulder?
The trapezius is a large triangular-shaped muscle that overlies the shoulder posteriorly. The trapezius originates from the superior aspect of the nuchal line in the occipital, cervical, and upper thoracic region and inserts at the lateral aspect of the clavicle, the acromion, and spine of the scapula.
What are the muscles of the back?
They are the trapezius, latissimus dorsi, rhomboid major, rhomboid minor, and levator scapulae. These muscles for the most part, receive their nerve supply from the ventral rami of cervical nerves, with the exception being the trapezius muscle.
What is the most superficial muscle of the back?
The trapezius is a broad, flat and triangular muscle. The muscles on each side form a trapezoid shape. It is the most superficial of all the back muscles. Attachments: Originates from the skull, ligamentum nuchae and the spinous processes of C7-T12.
What are the mid back muscles called?
The paraspinal muscles, sometimes called the erector spinae, are three muscle groups that support your back.
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