P. 405 - 410 Flashcards
Lateral 1/3 of clavicle is…
Flat and concave anteriorly
The medial 2/3 of the shaft of clavicle are…
Convex anteriorly
The clavicle functions(3)
Transmits shocks from the upper limb to the axial skeleton
Forms one of the boundaries of the cervicoaxiallary canal affording protection to the neurovascular bundle supplying the upper limb
Serves as a strut from which the scapula and free limb are suspended, keeping the limb away from thorax so that the arm has max rom
The clavicle has no _____ cavity.
Medullary (marrow)
It consists of spongy (Trabecular) bone and a shell of compact bone.
The scapula over lies which ribs?
2 - 7
Superolaterally, the scapula has a glenoid cavity, which….
Articulates with the head of the humerus at the glenohumeral joint. Serves as a socket for the head of the humerus. Smaller thn it doe
The intertubercular sulcus of the humerus separates?
The greater and lesser tubercles
Shaft of humerus has two prominent features…
Laterally is the deltoid tuberosity
Inferiorly is the radial groove
Capitulum
Lateral articulation of the humerus with the radius
Trachlea
Medial humeral articulation with the trochlear notch of ulna
The jugular notch is between?
The elevated eternal ends of the clavicle
Coronoid fossa
Receives the coronoid process of the ulna during full flexion of the elbow
Superior to trochlea
Posteriorly the olecranon fossa
Accommodates the olecranon of the ulna during extension of the elbow
Superiorly to the capitulum anteriorly, the shallow ______ fossa accommodates the edge of the head of the radius when he elbow is fully ____.
Radial fossa
Fully flexed
The stabilizing bone of the forearm?
Ulna