The Scalene Muscles Attachments Action Innervation Te Vrogue Co

The Scalene Muscles Attachments Action Innervation Teachmeanatomy The scalene muscles are three paired muscles (anterior, middle and posterior), located in the lateral aspect of the neck. collectively, they form part of the floor of the posterior triangle of the neck. the scalenes act as accessory muscles of respiration and perform flexion at the neck. in this article, we shall look at the anatomy of the. Origin: anterior tubercle of transverse processes of vertebrae c3 c6. insertion: scalene tubercle of rib 1, superior border of rib 1 (anterior to subclavian groove) innervation: anterior rami of spinal nerves c4 c6. blood supply: ascending cervical branch of the inferior thyroid artery. function: bilateral contraction neck flexion.

The Scalene Muscles Attachments Action Innervation Te Vrogue Co Scalene are a group of three pairs of muscles in the lateral neck: scalenus anterior, scalenus medius and scalenus posterior. sometimes a fourth muscle, the scalenus minimus is present behind the lower portion of the scalenus anterior. the brachial plexus and subclavian artery pass between the anterior and middle scalenes, while the subclavian. The scalene muscles are active during inspiration and, when the cervical spine is stabilised, the scalenes can elevate the first two ribs to act as accessory muscles of respiration. this article will cover the scalene muscles individually, to explore their origins and insertions, functions, innervation and blood supply. figure 1. The name scalene comes from the latin word scala meaning ladder. the scalene muscles are three paired running from the cervical vertebrae to the upper two . they form a roof over the pleura and the upper thorax. the innervation of all three scalene muscles is carried by direct branches of the. The scalene muscles are deep and positioned laterally to the cervical tract. their innervation is complex, as both the brachial plexus and the cervical plexus are involved in their function. they are multi articular muscles, and their actions are just as complex and vital. they play the role of accessory breathing muscles but are also important for the movement of the neck and the head and.