What is the main action of the trapezius muscle?
What is the main action of the trapezius muscle?
The function of the trapezius is to stabilize and move the scapula. The upper fibers can elevate and upwardly rotate the scapula and extend the neck. The middle fibers adduct (retract) the scapula. The lower fibers depress and aid the upper fibers in upwardly rotating the scapula.
What is the action of the trapezius muscle quizlet?
Location: Deep to trapezius in upper back located between the vertebrae and scapula and inferior to rhomboid minor. Action: Elevates and adducts scapula and rotates it downward, stabilizes scapula.
What is the function of levator scapulae muscle?
The levator scapulae muscles are superficial extrinsic muscles of the back that primarily function to elevate the scapulae.
What is the function of the lower trapezius?
The lower trapezius is one muscle that plays an important role in scapula movement and positioning, and also dynamic scapula stability. The functional scapula motions of upward rotation, posterior tilt, and external rotation increase the width of the subacromial space during humeral elevation.
Which muscle acts as an antagonist to trapezius?
agonistic: lower trapezius, middle trapezius, levator scapulae, rhomboid minor, supraspinatus, upper trapezius. antagonistic: latissimus dorsi, pectoralis major, pectoralis minor, serratus anterior, teres major, teres minor, posterior deltoid, rhomboid major.
What is the function of the sternocleidomastoid muscle EMT?
The sternocleidomastoid is a superficially located neck muscle that plays an important role in tilting your head and turning your neck, as well as other things. It courses from the back of your head and attaches to your breastbone and collar bone.
What is the unilateral action of the levator scapulae?
When acting on the cervical joints, unilateral contraction of the muscle produces ipsilateral flexion of the neck, while bilateral contraction contributes to extension of the neck.
