| Items: | 0 |
|---|---|
| Sub Total: | £0.00 |
| Delivery: | £0.00 |
| Total | £0.00 |
Physique Creator
Try our training planner program.
News
The History of the US Open
26 Jul 2009
Read an insight into The...
more
The Life and Times of Haile Gebreselassie
17 Jul 2009
Click now to view a great...
more
Why its Important to Keep Calm under Pressure
21 Apr 2009
Please click now to view a...
more
Secure Payments by
Scapula
The scapula is bone of shoulder girdle. It serves as connection between upper limb and clavicle. Its acromion process articulates with clavicle at lateral end of clavicle to form acromioclavicular joint.
It forms glenohumeral joint, popularly known as shoulder joint through its glenoid cavity with head of humerus. It has two surfaces, three borders, three angles and three processes.
Anatomy of the Scapula
The Surfaces
1. The costal surface is concave and is directed medially and forwards. It is marked by three longitudinal ridges. Another thick ridge adjoins the lateral border. This part of the bone is almost rod like: it acts as a lever for the action of the serratus anterior in overhead abduction of the arm.
2. The dorsal surface gives attachment to the spine of the scapula which divides the surface into a smaller supraspinous fossa and a larger infraspinous fossa. The two fossae are connected by the spinoglenoid notch, situated lateral to the root of the spine.
The Angles
1. The superior angle is covered by the trapezius.
2. The inferior angle is covered by the latissimus dorsi. It moves forward round the chest when the arm is abducted.
3. The lateral angle is broad and bears the glenoid cavity which is directed forwards, laterally and slightly upwards.
The Processes
1. The spine is triangular plate of bone with three borders and 2 surfaces. It divides the dorsal surface of the scapula into the supraspinous and infraspinous fossae. Its posterior border is called the crest of the spine. The crest has upper and lower lips.
2. The acromion has two borders, medial and lateral; two surfaces, superior and inferior, and a facet for the clavicle.
3. The coracoids process is directed forwards and slightly laterally.
Conditions of the Scapula
The scapula is usually fractured in trauma around shoulder. Usually it responds very well to conservative mode of treatments. Because of its sturdy structure and protected location, scapular fractures are uncommon; when they do occur, they are an indication that severe chest trauma has occurred
Bookmark this:
