Chapter 5 Flashcards
Proximal Humerus
Largest & longest bone of the upper body. Articulates with scapula to make up shoulder joint.
Head of humerus
Most proximal part of humerus
Anatomic neck
Directly below & lateral to the head. Adjoins greater & lesser tubercles
Lesser tubercle
Located on the anterior surface directly below the neck
Greater tubercle
Larger & located on lateral side of humerus
Intertuberacle groove
Located between 2 tubercles
Surgical neck
Humerus starts to taper down into shaft. More fractures happen here than anatomical neck.
2 bones of shoulder girdle
Clavicle, scapula
Connect upper limb to axial skeleton (trunk)
Sternum
Shoulder girdle joins clavicle which is anteriorly joined to upper portion
How is the shoulder girdle joined to scapula
By muscles joined to axial skeleton
Acromial extremity
Lateral end of clavicle articulates with acromion of scapula
Acromioclavicular Joint (AC)
Articulation of the acromial extremity
Sternal extremity
Medial portion of the clavicle. Articulates with mandibrum of sternum
Sternoclavicular Joint
Articulate of sternal extremity
Female clavicle is ______ than males
shorter and less curved
Medial border
Located closest to vertebrae from scapula
Superior border
Upper most portion of the scapula
Lateral border
Located most lateral to midline next to armpit