What muscles attach at greater tubercle of humerus?
What muscles attach at greater tubercle of humerus?
Muscle Attachments
| Muscle | Attachment |
|---|---|
| Supraspinatus | Greater Tubercle |
| Infraspinatus | Greater Tubercle |
| Teres Minor | Greater Tubercle Upper Part of the Lateral Border |
| Subscapularis | Lesser Tubercle |
Which muscles attach to upper and inferior facets of the greater tubercle of the humerus?
The supraspinatus attaches to the superior facet. The infraspinatus attaches to the middle facet. The teres minor attaches to the inferior facet.
What muscle attaches to lesser tubercle of humerus?
subscapularis muscle
The subscapularis muscle originates at the subscapular fossa and inserts into the lesser tubercle of the humerus.
Which group of muscles is inserted to the greater tubercle?
The greater tuberosity is located laterally on the humerus and has anterior and posterior surfaces. It serves as an attachment site for three of the rotator cuff muscles – supraspinatus, infraspinatus and teres minor – they attach to superior, middle and inferior facets (respectively) on the greater tuberosity.
What is the insertion of the greater tubercle?
The greater tubercle is situated lateral to the head and lesser tubercle. Its upper surface is rounded and marked by three flat impressions: the highest of these gives insertion to the Supraspinatus; the middle to the Infraspinatus; the lowest one, and the body of the bone for about 2.5 cm.
What is inferior to the humerus?
The humerus is the largest bone of the upper extremity and defines the human brachium (arm). [1] Just inferior to the head of the humerus is the anatomical neck of the humerus, which divides the head of the humerus from the greater and lesser tubercles.
Which muscle inserts on the greater tubercle of the humerus quizlet?
which muscle inserts on the greater tubercle of the humerus? the infraspinatus typically originates on the infraspinous fossa of the scapula and inserts into the greater tubercle of the humerus posterior to the insertion of supraspinatus.
Which 2 muscles have the humerus has an insertion site?
The pectoralis major, teres major, and latissimus dorsi insert at the intertubercular groove of the humerus. They work to adduct and medially, or internally, rotate the humerus. The infraspinatus and teres minor insert on the greater tubercle, and work to laterally, or externally, rotate the humerus.
What is greater tubercle and lesser tubercle?
The greater tubercle of the humerus is situated lateral to the head of the humerus and posterolateral to the lesser tubercle….
| Greater tubercle | |
|---|---|
| FMA | 23390 |
| Anatomical terms of bone |
Where do the rotator cuff muscles attach to the humerus?
Muscles composing rotator cuff
| Muscle | Origin on scapula | Attachment on humerus |
|---|---|---|
| Infraspinatus muscle | infraspinous fossa | middle facet of the greater tubercle |
| Teres minor muscle | middle half of lateral border | inferior facet of the greater tubercle |
| Subscapularis muscle | subscapular fossa | lesser tubercle |
What muscles are attached to the humerus?
The pectoralis major, latissimus dorsi, deltoid, and rotator cuff muscles connect to the humerus and move the arm.
