TAILIEUCHUNG - Drawing Dynamic Hands - Vẽ bàn tay - Phần 3

Tài liệu tham khảo tiếng Anh về hội họa - Drawing Dynamic Hands - Vẽ bàn tay - Phần 3 | ANATOMY AND STRUCTURE When the artist studies human anatomy he is not usually pursuing the same goals as the medical doctor or the scientist. He is searching for visual form which can be translated aesthetically and augmented imaginatively. However knowledge of anatomy is essential for an understanding of various attitudes postures and movements. It allows the artist to truly understand the surface contours of the body because he knows the forms and structures underneath. It also teaches him why the surface forms appear as they do. Hopefully you will not be so caught in the study of the parts that you forget the rhythmic and unified whole. As you go through this chapter you ll see the efficiency order and symmetry of the forms of the hand and the integrated way in which all work together to give the hand its wide variety of movement and response. 40 X x WRIST AND HAM BONES The dorsal side of the hand including the wrist has a particularly bony surface with many protrusions lying just under the skin. The hand begins above the wrist at the point where the radius A and ulna B form the pivotal radio-ulnar joint. Note that only the radius articulates with the three top wrist bones carpal bones to form the radio-carpal joint X . Below the radio-carpal joint the eight compact wrist bones as a unit make up the carpus formed in a close-set ellipse as seen in the schematic at right. Individually they are known as carpals. and each has a separate name. The central lunate bone C tends to elevate the upper tier composed of the scaphoid bone D . a boat-shaped form on the inside the moon-shaped lunate bone the wedge-shaped triquetrum bone on the outside E and the pea-shaped pisiform bone F . Four larger carpals make up the lower tier. Articulating directly with the thumb is the saddle-shaped trapezium bone G contacting the index finger is the boot-shaped trapezoid bone next the keystone-shaped capitate bone I outside the hooked hamate bone J . Attached to the carpals are the .

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