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urface of the bone can be felt all the way down. The inner edge can be felt, but not so plainly. 6. The head of the _fibula_ is a good landmark on the outer side of the leg, about one inch below the top of the tibia. Note that it is placed well back, and that it forms no part of the knee joint, and takes no share in supporting the weight. The shaft of the fibula arches backwards and is buried deep among the muscles, except at the lower fourth, which can be distinctly felt. 7. The _malleoli_ form the great landmarks of the ankle. The outer malleolus descends lower than the inner. The inner malleolus advances more to the front and does not descend so low as the outer. 8. The line of the _clavicle_, or collar bone, and the projection of the joint at either end of it can always be felt. Its direction is not perfectly horizontal, but slightly inclined downwards. We can distinctly feel the _spine_ of the scapula and its highest point, the _acromion_. 9. Projecting beyond the acromion (the arm hanging by the side), we can feel, through the fibers of the _deltoid_, the upper part of the humerus. It distinctly moves under the hand when the arm is rotated. It is not the head of the bone which is felt, but its prominences (the tuberosities). The greater, externally; the lesser in front. 10. The _tuberosities of the humerus_ form the convexity of the shoulder. When the arm is raised, the convexity disappears,--there is a slight depression in its place. The head of the bone can be felt by pressing the fingers high up in the axilla. 11. The _humerus_ ends at the elbow in two bony prominences (internal and external condyles). The internal is more prominent. We can always feel the _olecranon_. Between this bony projection of the ulna and the internal condyle is a deep depression along which runs the ulna nerve (commonly called the "funny" or "crazy" bone). 12. Turn the hand over with the palm upwards, and the edge of the _ulna_ can be felt from the olecranon to the prominent knob (styloid process) at the wrist. Turn the forearm over with the palm down, and the head of the ulna can be plainly felt and seen projecting at the back of the wrist. 13. The upper half of the _radius_ cannot be felt because it is so covered by muscles; the lower half is more accessible to the touch. 14. The three rows of projections called the "knuckles" are formed by the proximal bones of the several joints. Thus the first row is formed by t
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