What attaches to superior facet of greater tubercle?
Table of Contents
- 1 What attaches to superior facet of greater tubercle?
- 2 What muscles attach at greater tubercle of humerus?
- 3 What muscles attach to the humerus?
- 4 How many muscles insert on the greater tubercle of the humerus?
- 5 Which muscle inserts on the greater tubercle of the humerus quizlet?
- 6 Which of the following muscles has a distal attachment to the humerus?
- 7 What attaches to the greater tubercle of the humerus?
- 8 What attaches to the greater tubercle of the rotator cuff?
What attaches to superior facet of 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 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 muscle has an attachment on the middle facet of the greater tubercle of the humerus?
infraspinatus
The supraspinatus attaches to the superior facet. The infraspinatus attaches to the middle facet.
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 muscles attach to the humerus?
The pectoralis major, latissimus dorsi, deltoid, and rotator cuff muscles connect to the humerus and move the arm.
How many muscles insert on the greater tubercle of the humerus?
three insert
All three insert on the greater tubercle of the humerus, allowing them, in combination with the subscapularis, to control rotation of the arm. The supraspinatus muscle is above the spine of the scapula. The infraspinatus muscle is below the spine of the scapula.
What muscles attach to humerus?
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.
Which muscle does not have an attachment on the greater tuberosity of the humerus?
The fourth muscle of the rotator cuff (subscapularis muscle) does not attach to the greater tubercle, but instead attaches to the lesser tubercle.
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 of the following muscles has a distal attachment to the humerus?
Brachioradialis: The brachioradialis is located in the superficial region of the forearm posterior compartment, Attachments: Originates from the humerus and attaches to the distal end of the radius.
Where does the humerus shaft attach?
Humerus: The humerus attaches proximally to the scapula (shoulderblade) at the humeral head and distally with the radius and ulna (lower-arm bones) at the trochlea and capitulum, respectively.
Which muscles insert on the humerus?
What attaches to the greater tubercle of the humerus?
The greater tubercle lies lateral to the head of the humerus as serves as the point of attachment for three of the rotator cuff muscles. There are three flat facets to which these three muscles attach: The supraspinatus attaches to the superior facet. The infraspinatus attaches to the middle facet.
What attaches to the greater tubercle of the rotator cuff?
The greater tubercle therefore acts as a location for the transfer of forces from the rotator cuff muscles to the humerus. The fourth muscle of the rotator cuff ( subscapularis muscle) does not attach to the greater tubercle, but instead attaches to the lesser tubercle .
What is the middle facet of the humerus?
the middle (“middle facet”) gives insertion to the infraspinatus muscle. the lowest (“inferior facet”), and the body of the bone for about 2.5 cm, gives insertion to the teres minor muscle. The lateral surface of the greater tubercle is convex, rough, and continuous with the lateral surface of the body of the humerus.
What is the lateral facet of the greater tubercle?
the middle (“middle facet”) to the infraspinatus. the lowest one (“inferior facet”), and the body of the bone for about 2.5 cm; below it, to the teres minor. The lateral surface of the greater tubercle is convex, rough, and continuous with the lateral surface of the body.