Pectoral Girdle Flashcards
What are the bones of the Pectoral Girdle?
The Clavicle and the Scapula.
What is the Glenohumeral Joint?
Inferior to the Acromion is a shallow depression called the Glenoid cavity this accepts the head of the Humerus to form the Glenohumeral Joint.
What is the function of the Pectoral Girdle?
They are used for providing structural support to the shoulder and an increased ROM.
The Pectoral Girdles of both sides of the body are not connected.
What are both ends of the Clavicle called?
The Acromion end and the Sternal End.
How do Fractured Clavicles occur?
When blows to the Anterior thorax occur and most of the time during car accidents. Also mechanical force is transmitted into the clavicle from your arms so when the energy from the Arms is too high for the bone to withstand.
How is the Scapula held to the body?
It is held to the body by a range of muscle and tendons in the upper back.
What are all the parts to the Scapula?
Anterior view:
Coracoid proces, Subscapular Fossa
Lateral view:
Glenoid cavity
Posterior view:
Superior angle/border and notch, Supraspinous fossa/infra, Spine of the scapula, Acromion, Medial/vertebral border, Lateral/ Axillary border, Inferior angle.
What are all the parts to the Clavicle?
Acromial end, Sternal end, Conoid Tubercle, Impression for the Costoclavicular Ligament.
What is the Conoid Tubercle used for and where is it located?
It is located on the Acromion/ Lateral end of the Clavicle for the Conoid Ligament to attach to.
This helps bind the Scap and the Clavicle.
What is the Impression on the Medial end of the Clavicle used for?
This is the location for the attcahment point for the Coastoclavicular Ligament.
Helps bind the 1st rib with the clavicle from the inferior portion of the medial end of the clavicle to the superior portion of the medial end of the first rib.
(fix where the ligament attaches exactly on the bone)
