What are landmarks of the deltoid muscle?
To locate the landmark for the deltoid muscle, expose the upper arm and find the acromion process by palpating the bony prominence. The injection site is in the middle of the deltoid muscle, about 2.5 to 5 cm (1 to 2 inches) below the acromion process.
What is the anatomical location of the deltoid?
Where are the deltoid muscles located? Your deltoid muscles crown your shoulder, covering the front, side and back of the joint. They’re superficial, which means they’re close to the surface of your skin. The deltoid looks like an upside-down triangle.
What is the anatomical landmark of the shoulder?
Bony Landmarks of the Shoulder Clavicle – medial to lateral, comparing both sides. Acromioclavicular joint – the articulation between the distal end of the clavicle and the acromion of the scapula. Acromion – just lateral to the acromioclavicular joint; a triangular process jutting out over the glenohumeral joint.
What are the 3 sections of the deltoids?
The deltoid muscle is the main muscle of the shoulder. It consists of three parts, also called heads: the anterior deltoid, lateral deltoid, and posterior deltoid.
What is the origin and insertion of the deltoid?
The deltoid is a thick, triangular shoulder muscle. It gets its name because of its similar shape to the Greek letter ‘delta’ (Δ). The muscle has a wide origin spanning the clavicle, acromion and spine of scapula. It passes inferiorly surrounding the glenohumeral joint on all sides and inserts onto the humerus.
Where is the deltoid region of the upper arm?
The deltoid muscle is a rounded, triangular muscle located on the uppermost part of the arm and the top of the shoulder. It is named after the Greek letter delta, which is shaped like an equilateral triangle.
Where is the anterior deltoid located?
The anterior or clavicular fibers arise from most of the anterior border and upper surface of the lateral third of the clavicle. The anterior origin lies adjacent to the lateral fibers of the pectoralis major muscle as do the end tendons of both muscles.
What two bony landmarks make up the shoulder joint?
The shoulder joint itself known as the Glenohumeral joint, (is a ball and socket articulation between the head of the humerus and the glenoid cavity of the scapula)
What are the bony landmarks of the scapula?
Important bony landmarks on the scapula include:
- Coracoid process.
- Spine of the scapula.
- Superior angle.
- Inferior angle.
- Lateral border.
- Medial border.
- Supraspinous fossa.