How many muscles insert on the greater tubercle of the humerus?
three
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: Superior facet. Middle facet.
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. The muscles that move the forearm are located along the humerus, which include the triceps brachii, biceps brachii, brachialis, and brachioradialis.
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 attaches to the superior facet of the greater tuberosity?
supraspinatus
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.
Is greater tuberosity the same as greater tubercle?
Discussing them further, the greater tuberosity of the humerus is a prominent area of the humerus at the top of the bone. Perhaps, it is known as the greater tubercle along with the lesser tubercle.
Which rotator cuff muscles attach to the greater tuberosity?
Supraspinatus: The supraspinatus muscle originates above the spine of the shoulder blade and inserts on the greater tuberosity of the humerus.
What muscles attach to lesser tubercle of humerus?
Muscle Attachments
| Muscle | Attachment |
|---|---|
| Subscapularis | Lesser Tubercle |
| Pectoralis Major | Upper Part of the Anterior Border |
| Triceps Brachii | Lower Part of the Lateral Border Lateral Supracondylar Ridge |
| Brachioradialis | Lateral Supracondylar Ridge |
What attaches lesser tuberosity?
Lesser tubercle The subscapularis muscle attaches at this tubercle and the transverse ligament of the shoulder also attaches on its lateral part.
Which of the following muscles does not attach to the humerus?
Three muscles are located in the anterior compartment of the upper arm. Biceps Brachii: The biceps brachii is a two-headed muscle. Although the majority of the muscle mass is located anteriorly to the humerus, it has no attachment to the bone itself.
What is the difference between a tubercle and tuberosity?
A tubercle is a small rounded prominence, often a site of tendon or ligament attachment e.g. adductor tubercle of the femur. A tuberosity is larger, found in varying shapes and often rough in texture. The ulnar tuberosity is one example.
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.
What inserts on the greater tubercle of the humerus?
The teres minor muscle originates from the lateral border of the scapula and inserts on the greater tubercle of the humerus.