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Which muscle protracts and depresses the scapula?
The serratus anterior muscle protracts and depresses the scapula. It originates on the upper ribs and inserts along the medial border of the scapula. This muscle is important for stabilizing the scapula during movements like pushing and reaching overhead.
Which muscle is responsible for holding the scapula on the chest wall?
The Serratus Anterior muscle is responsible for holding the scapula against the chest wall. It helps stabilize the scapula and is important for proper shoulder movement and function.
Is the trapezius a flexor or an extensor?
Extensor. It will extend the neck and adduct the scapula.
What is the proximal attachment of the infraspinatus?
The proximal attachment of the infraspinatus muscle is primarily located on the infraspinous fossa of the scapula. It originates from the posterior surface of the scapula, below the spine of the scapula, and spans laterally to attach to the greater tubercle of the humerus. This positioning allows it to play a crucial role in shoulder stabilization and external rotation of the arm.
Which muscle stabilizes the scapula by preventing extreme elevation and protraction of the clavicle?
The trapezius muscle plays a key role in stabilizing the scapula by preventing extreme elevation and protraction of the clavicle. Its upper fibers help elevate the scapula, while the middle fibers aid in retracting and stabilizing it.
Moves the scapula forward and downward?
The primary muscle responsible for moving the scapula forward and downward is the serratus anterior. This muscle originates along the upper eight or nine ribs and inserts along the inner border of the scapula. Contraction of the serratus anterior pulls the scapula forward and downward along the ribcage.
What muscle end with suffix coastal?
The muscle that ends with the suffix "coastal" is the external intercostal muscle. This muscle is located between the ribs and is involved in the movement of the ribcage during breathing.
A flat thoracic muscle deep to the pectoralis major that acts to draw the scapula inferiorly or to elevate the rib cage?
The muscle described is likely the serratus anterior. It originates on the surface of the upper ribs and inserts along the scapula. Its primary functions include protraction of the scapula (bringing it forward around the ribcage) and upward rotation of the scapula.
What muscle group is your scapula from?
The scapula is not a muscle; it is a bone.
Where is the rhomboid major?
The rhomboid major is a muscle located in the upper back, beneath the trapezius muscle. It originates from the spinous processes of the T2 to T5 vertebrae and inserts into the medial border of the scapula, between the spine and the inferior angle. This muscle plays a key role in retracting and stabilizing the scapula.
The supraspinosis fossa is located on what bone?
It's called the supraspinous fossa and it's on the scapula.
Muscle that daises ribs in forceful inhalation?
Rhomboideus Major The rhomboid major helps to hold the scapula (and thus the upper limb) onto the ribcage. It also acts to retract the scapula, pulling it towards the vertebral column, and downwardly rotates the scapula with respect to the glenohumeral joint. It works collectively with the levator scapulae to elevate the medial border of the scapula.
What are the three fossa of the scapula?
The three fossae of the scapula are the supraspinous fossa, infraspinous fossa, and subscapular fossa. The supraspinous fossa is located above the spine of the scapula and serves as the origin for the supraspinatus muscle. The infraspinous fossa is situated below the spine and provides attachment for the infraspinatus muscle. The subscapular fossa is found on the anterior surface of the scapula and serves as the origin for the subscapularis muscle.
Where is the rhomboid muscle located?
The rhomboid muscles, often simply called the rhomboids, are rhombus-shaped muscles associated with the scapula and are chiefly responsible for its retraction. There are two rhomboid muscles: Rhomboid major muscle and Rhomboid minor muscle. They are located on the back that connects the scapula with the vertebrae of the spinal column.
Name the origin of the supraspinatus muscle?
The supraspinatus muscle originates from the supraspinous fossa of the scapula.
What is the name of the muscle of where spare ribs come from a pig?
The ribs are linked by the intercostal muscles. These open and close the ribcage to cause breathing.
What is the action of the levitor scapulae muscle?
Raises the scapula at the Scapulothoracic Joint or inclines neck to corresponding side if the scapula is fixed
