What muscles attach to the supraspinous fossa?
What muscles attach to the supraspinous fossa?
Supraspinatus muscle originates from the supraspinous fossa. Distal attachment of the levator scapulae muscle is also on the medial aspect of the fossa.
What muscle is located in the supraspinous fossa of the scapula?
supraspinatus muscle
The supraspinatus muscle, the most superiorly located of the rotator cuff muscles, resides in the supraspinous fossa of the scapula, superior to the scapular spine.
Which muscle attaches on the supraspinous fossa and the greater tubercle of the humerus?
Supraspinatus muscle
The supraspinatus (plural supraspinati) is a relatively small muscle of the upper back that runs from the supraspinous fossa superior portion of the scapula (shoulder blade) to the greater tubercle of the humerus. It is one of the four rotator cuff muscles and also abducts the arm at the shoulder.
What is located in the supraspinous fossa?
The supraspinous fossa includes the surface of the scapula bone to which the supraspinatus muscle (sometimes written “supraspinalis” – one of the posterior muscles of the torso) is attached. The supraspinous fossa is the part of the scapula (bone) to which the supraspinatus (muscle) is attached.
What attached to the depression of the supraspinous fossa?
Supraspinatus is the most superior of the four rotator cuff muscles. It is a small triangular-shaped muscle, located on the posterior aspect of the scapula. It originates from the medial aspect of the supraspinous fossa, a concave depression located above the spine of the scapula.
Where does the supraspinatus muscle attach?
greater tubercle of the humerus
The supraspinatus tendon is inserted into the superior facet of the greater tubercle of the humerus.
Where does the supraspinatus ligament attach?
greater tuberosity of the humeral head
The supraspinatus muscle is the most superior of the muscles; it originates from the medial two thirds of the supraspinatus fossa along the dorsal aspect of the scapula. Its tendon inserts onto the highest facet of the greater tuberosity of the humeral head.
Where does the subscapularis attach?
The subscapularis muscle originates at the subscapular fossa and inserts into the lesser tubercle of the humerus.
What muscle originates in the subscapular fossa?
The subscapularis muscle
The subscapularis muscle originates at the subscapular fossa and inserts into the lesser tubercle of the humerus. The muscle internally rotates and adducts the humerus. The bicep tendon lies underneath the subscapularis tendon in the bicipital groove.
What does the subscapularis muscle attach to?
The subscapularis muscle originates at the subscapular fossa and inserts into the lesser tubercle of the humerus. The muscle internally rotates and adducts the humerus.
Where does infraspinatus attach?
Greater tubercle of humerus
Infraspinatus muscle
| Origin | Infraspinous fossa of scapula |
|---|---|
| Insertion | Greater tubercle of humerus |
| Action | Shoulder joint: Arm external rotation; Stabilizes humeral head in glenoid cavity |
| Innervation | Suprascapular nerve (C5, C6) |
| Blood supply | Suprascapular artery, circumflex scapular arteries |
What is the attachment of subscapularis?
Subscapularis muscle
| Origin | Subscapular fossa of scapula |
|---|---|
| Insertion | Lesser tubercle of humerus |
| Action | Shoulder joint: Arm internal rotation Stabilizes humeral head in glenoid cavity |
| Innervation | Upper and lower subscapular nerves (C5 – C6) |
| Blood supply | Suprascapular artery, axillary artery, subscapular artery |
Where does supraspinatus attach?
Supraspinatus muscle
| Origin | Supraspinous fossa of scapula |
|---|---|
| Insertion | Greater tubercle of humerus |
| Action | Shoulder joint: abduction of arm, stabilization of the humeral head in the glenoid cavity |
| Innervation | Suprascapular nerve (C5, C6) |
| Blood supply | Suprascapular artery |
Which muscle lies within the Suprascapular fossa quizlet?
occupies the supraspinous fossa of the scapula. Is deep to the trapezius muscle. Origin, insertion, action of the supraspinatus muscle.
What is the subscapular fossa?
The subscapular fossa is a landmark of the scapula. As the name implies, it is on the deep side of the scapula. The subscapular fossa of the scapula is of functional importance because it is the origin for: 1. the subscapularis muscle (one of the four rotator cuff muscles).
What is infraspinatus fossa?
The infraspinous fossa is found on the posterior scapula. The scapular spine divides the posterior aspect of the scapula into the supraspinous and infraspinous fossae. Of note, the teres minor muscle also originates from the infraspinous fossa.
What muscle fits in the subscapular fossa?
Subscapularis is a triangular shoulder muscle located in the subscapular fossa of scapula.
How many muscles attach to the scapula?
17 different muscles
It connects with the humerus at the glenohumeral joint as well as the clavicle at the acromioclavicular joint to form the shoulder joint. In total, 17 different muscles attach to the scapula, which makes it difficult to fracture.
What are the skeletal attachments of the subscapularis?
Where musculus infraspinatus is attached?
It attaches medially to the infraspinous fossa of the scapula and laterally to the middle facet of the greater tubercle of the humerus.
What muscles attach on the scapula?
The intrinsic muscles of the scapula include the rotator cuff muscles, teres major, subscapularis, teres minor, and infraspinatus. These muscles attach the scapular surface and assist with abduction and external and internal rotation of the glenohumeral joint.
Which of these muscles attaches to scapula?
Scapula
| Borders | Superior, lateral and medial |
|---|---|
| Muscles that insert on the scapula | Trapezius, levator scapulae, rhomboid major, rhomboid minor, serratus anterior, pectoralis minor muscles |
| Vascularization | Suprascapular, posterior circumlex humeral, circumflex scapular, transverse cervical arteries |
Where does subscapularis attach?
lesser tubercle of the humerus
The subscapularis muscle originates at the subscapular fossa and inserts into the lesser tubercle of the humerus. The muscle internally rotates and adducts the humerus.
How many muscles attach on scapula?
What are the 18 muscles that attach to the scapula?
trapezius muscle.