A. Scapula is a large triangular, flat bone situated in the superior part of the posterior thorax. A prominent ridge called the spine runs diagonally across the posterior surface of the scapula. He could identify the right and left by the medial border because the thick edge (lateral border) is closer to the arm. The glenoid cavity is the shallow depression that articulates with the head of the humerus.
B. Stefan is referring to the clavicle as the collar bone.
C. Stefan could identify the right and left humerus by several things like the medial epicondyle, which is a large convex eminence to which the tibial collateral ligament of the knee-joint is attached. The coronoid fossa, which is defined as a hollow on the anterior surface of the distal end of the humerus, just above the trochlea, in which the coronoid process of the ulna rests when the elbow is flexed.The radial fossa, which is a shallow depression on the anterior aspectof the distal humerus. or the olecranon fossa which is a deep triangular depression on the posterior side of the humerus, superior to the trochlea, in which the summit of the olecranon is received during extension of the forearm..
D. Because the deltoid tuberosity is the site of attachment for the deltoid muscle. The deltoid muscle is a large and powerful muscle of the shoulder joint.
E. The pubic symphysis is the joint between the two hip bones.
F. In the later stages of pregnancy, the…