What muscles attach to clavicle?
The clavicle is an S-shaped bone that is anchored by strong ligamentous attachments on both its medial and lateral ends. Muscular attachments to the clavicle include the sternocleidomastoid, pectoralis major, and subclavius muscles proximally and the deltoid and trapezius muscles distally.
Which muscle attach on the posterior border of clavicle?
Muscle
| Attachment on collarbone | Muscle/Ligament |
|---|---|
| Anterior border | Pectoralis major muscle |
| Posterior border | Sternocleidomastoid muscle (clavicular head) |
| Posterior border | Sternohyoid muscle |
| Posterior border | Trapezius muscle |
How many muscle attachments are present for clavicle bone?
There are five muscles that make their origin or insertion on the clavicle: pectoralis major and sternocleidomastoid muscles medially; subclavius muscle centrally; and deltoid and trapezius muscles distally (Gray, 1918; Netter, 1987).
Where does the clavicle attach?
The clavicle has three main functions: Attaches the upper limb to the trunk as part of the ‘shoulder girdle’.
What is the space between the clavicle called?
The thoracic outlet is a narrow space between your collarbone (clavicle) and your first rib. Nerves and blood vessels exit from your chest to your arm through this space.
Which surface of the clavicle is smooth?
superior surface
The superior surface of the clavicle has a smooth appearance. The acromial facet can be seen at the far poster edge of the acromial end. It appears as a small flattened oval surface and enables the clavicle to articulate about the acromion of the scapula in the acromioclavicular joint.
What kind of attachment does the clavicle have?
The shaft of the clavicle gives attachment to the muscles of the shoulder girdle and neck. Similar to other long bones, it has two enlarged ends- medial & lateral end, and an elongated body (shaft).
Is the pectoralis part of the clavicle?
The sternocleidomastoid muscle, clavicular head of the muscle attaches to the medial third of the clavicle. The pectoralis major muscle, which is attached to the anterior surface of the bone. The subclavius muscle, which is attached to a groove found in the middle of the bone’s inferior surface.
What makes the inferior surface of the clavicle rough?
In contrast, the inferior surface of the clavicle is quite rough and has many prominent lines, indicating sites where muscle and ligaments may attach to the bone. These can be divided into three bony landmarks:
Where is the Clavicula located on the body?
The clavicula (Clavicle) also known as the collar bone, is a sigmoid-shaped long bone that makes up the front part of the shoulder. It sits between the shoulder blade and the sternum. There are 2 clavicles in a person, one on the right and the other one on the left side. It is the only long bone in the body that lies horizontally.
