What does the serratus muscle do?
When the shoulder girdle is fixed, all three parts of the serratus anterior muscle work together to lift the ribs, assisting with respiration. The serratus anterior, also known as the “boxer’s muscle,” is largely responsible for the protraction of the scapula, a movement that occurs when throwing a punch.
What is the action function of the serratus anterior?
Serratus anterior muscle
| Serratus anterior | |
|---|---|
| Actions | protracts and stabilizes scapula, assists in upward rotation. |
| Antagonist | Rhomboid major, Rhomboid minor, Trapezius |
| Identifiers | |
| Latin | musculus serratus anterior, serratus lateralis |
What is the function of serratus posterior?
The serratus posterior superior helps to elevate the upper ribs during inhalation. The serratus posterior inferior, inversely, helps to draw the lower ribs downward and backward during exhalation.
What movement does the serratus anterior perform?
It’s also a key scapular stabilizer, keeping the shoulder blades against the ribcage when at rest and during movement. It also acts with the upper and lower fibers of the trapezius muscle to sustain upward rotation of the scapula, which allows for overhead arm movement.
Does serratus anterior elevate the scapula?
The contraction of the entire serratus anterior leads to a anterolateral movement of the scapula along the ribs. Due to the pull of the inferior part at the lower scapula, the shoulder joint is shifted superiorly. This shifting now enables to lift the arm above 90° (elevation).
Why is the serratus anterior important?
The serratus anterior (SA) is a muscle that plays an important role in the dynamic movement and control of the scapula during pushing movements and overhead elevation.
Does serratus anterior help with posture?
Combining all of this together the serratus anteriors are major contributors to having great posture and avoiding neck pain! They anchor and stabilize your shoulder blade as well as allowong fluid and efficient movement of the shoulders, decreasing the impact and use of your neck.
Is serratus posterior a superficial muscle?
Relations. The serratus posterior superior muscle is located superficial to the thoracic part of the thoracolumbar fascia covering the splenius cervicis. It lies deep to the rhomboids and the trapezius muscle.
Does serratus anterior help with breathing?
The muscle of this region that is important in breathing is the serratus anterior. It overlies the lateral part of the thorax and forms the lateral wall of the axilla. It arises from the the 1st to 8th pairs of ribs and inserts onto the medial border of the scapula.