Appendicular Skeleton Flashcards
2 components of the upper limb
Pectoral girdle
Free upper limb
Pectoral girdle
Attach bones of the free upper limbs to the axial skeleton
2 components of pectoral girdle
Clavicle
Scapula
Free upper limb
arm, hand and phalanges
Strut
Clavicle resists compression of the pectoral girdle by propping up the shoulder joint away from the rib cage
Sternal End of Clavicle
Articulates with the manubrium of the sternum
Acromial End
Broad, flat lateral end of clavicle that articulates with acromion of scapula
Acromioclavicular Joint
Acromial end of clavicle joins acromion of scapula
Conoid Tubercle
Inferior surface of the lateral end of clavicle. Attachment for conoid ligaments
Impression for costoclavicular ligament
Inferior surface of sternal end of clavicle connects first rib to clavicle
Spine of scapula
Ridge runs diagonally on the posterior side
Acromion
Lateral end of scapula that is a flattened and expanded process
Glenoid Cavity
Shallow depression in scapula accepts head of the radius
Glenohumeral Joint
Glenoid cavity of scapula and the head of the humerus
Medial Border of scapula
Thin edge closer to vertebral column
Lateral Border of scapula
Thick edge closer to arm
Inferior angle of scapula
Medial and lateral borders join
Superior angle of scapula
Superior edge and medial border join
Scapular notch
Prominent indentation along superior border where suprascapular nerve passes
Coracoid process
Hooky bump on lateral end of superior border of scapula where tendons attach
Supraspinous Fossa
Superior to spine of scapula
Infraspinous Fossa
Inferior to spine of scapula
Subscapular Fossa
On anterior surface. Attachment for subscapularis muscle
Head of humerus
Proximal end articulates with glenoid cavity of scapula