What is the insertion point of the supraspinatus muscle?
Insertion. The supraspinatus tendon is inserted into the superior facet of the greater tubercle of the humerus.
Where is the insertion of the supraspinatus?
greater tubercle of humerus
| Supraspinatus muscle | |
|---|---|
| Origin | supraspinous fossa of scapula |
| Insertion | superior facet of greater tubercle of humerus |
| Artery | suprascapular artery |
| Nerve | suprascapular nerve |
Where does the supraspinatus insert and originate?
The supraspinatus muscle originates from the supraspinous fossa, which is a concave surface at the top of the scapula. From the supraspinous fossa of the scapula, the supraspinatus muscle then extends laterally (outward) and inserts onto the humerus, which is the long bone that makes up the upper arm.
What is the origin and insertion of the subscapularis?
Subscapularis is a triangular shoulder muscle located in the subscapular fossa of scapula….Subscapularis muscle.
| Origin | Subscapular fossa of scapula |
|---|---|
| Insertion | Lesser tubercle of humerus |
| Action | Shoulder joint: Arm internal rotation Stabilizes humeral head in glenoid cavity |
What is the purpose of the supraspinatus?
As part of the Rotator Cuff, supraspinatus helps to resist the gravitational forces which act on the shoulder joint to pull from the weight of the upper limb downward. It also helps to stabilize the shoulder joint by keeping the head of the humerus firmly pressed medially against the glenoid fossa of the scapula.
What is the supraspinatus connected to?
The supraspinatus has associations with the other muscles of the rotator cuff, including infraspinatus, teres minor, and subscapularis. It is embryologically linked to the deltoid and works with the deltoid to perform abduction of the humerus at the glenohumeral joint.
Where on the scapula is the attachment point of the supraspinatus muscle?
Supraspinous fossa
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 |
What is the insertion of subscapularis?
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.
Which best describes the insertion point of the subscapularis?
Insertion Point of the Subscapularis Specifically, this muscle inserts onto the lesser tubercle of the humerus. The lesser tubercle (also known as the lesser tuberosity) is a round prominence located at the front, top of the humerus. The lesser tubercle is located right next to the larger greater tubercle.
How do you activate supraspinatus?
Using the criteria that the best exercise to isolate and strengthen the supraspinatus should maximize supraspinatus activity while minimizing deltoid activity, the researchers determined that shoulder external rotation at 0° of abduction with an elastic band and prone external rotation were preferable.