Week 1 - Osteology of the Upper Limb Flashcards
What bones form the pectoral girdle?
Clavicle & Sternum
What is the name of the joint which forms at the sternal end of the clavicle?
Sternoclavicular joint
What joint occurs at the acromial end of the clavicle?
Acromioclavicular joint
Which muscles attach to the clavicle?
Sternocleidomstoid
Trapezius
Deltoid
Pectoralis major
What ligaments attach to the inferior aspect of the clavicle?
Medial - costoclavicular ligament
Lateral - coracoclavicular ligament
What are the different processes of the scapula?
Coracoid process - anterior
Spine of scapula - posterior ridge which ends laterally as the acromion process
Which muscles & ligaments attach to the coracoid process of the scapula?
Pectorialis minor - ribs 3-5
Biceps brachii
Coracobrachialis
Coracoclavicular ligaments
Coracoacromial ligaments
Which muscles attach to the Spine of scapula & acromion process?
Trapezius
Deltoid
4 Fossae (depressions) of the scapula
Glenoid - articulates with humerus (Supra & Infra, to long head of biceps & triceps)
Subscapular - subscapularis
Supraspinous - supraspinatus
Infraspinous - infraspinatus
What is the suprascapular notch for?
The suprascapular nerve
What does the head of the proximal humerus articulate with?
The glenoid cavity of scapula
What are the two different proximal necks of the humerus?
Anatomic neck - site of growth plate & joint capsule attachment
Surgical neck - narrow part, (more likely to break)
What are the humerus tubercles?
Greater tubercles (more laterally) - supraspinatus, infraspinatus, teres minor
Lesser tubercles (more anteriorly) - subscapularis
What muscle connects in the intertubercular grove?
Pectorialis major, latissimus dorsi, teres major (biceps brachii tendon runs un groove)
What nerve runs in the spinal/radial groove?
Radial nerve
