Recto: The vessels of the pelvic region. Verso: The mechanics of the arm in man and monkey c.1508
Recto: Pen and ink over black chalk. Verso: Pen and ink and black chalk | 19.2 x 14.0 cm (sheet of paper) | RCIN 919026
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A folio from Leonardo's 'Anatomical Manuscript B'.
Recto: a drawing showing the ramifications of the veins and arteries of the pelvis, in ink, the right leg being outlined in black chalk; a smaller drawing of the same; a blood vessel from groin to hip; notes on the drawings. These studies seem primarily to be concerned with demonstrating the symmetry and paired arrangement of the veins and arteries, in an area where bilateral symmetry is not the norm. In the upper drawing, the abdominal aorta a and inferior vena cava b are shown in the correct relationship, and branching into the common iliac vessels; from these descend the internal iliac vessels, while lumbar vessels ascend on either side of the great vessels. The ascending lumbar veins are shown either side of the great vessels, but the accompanying arteries are imaginary. The deep circumflex iliac artery and vein are prominent in both studies, passing around the right side of the hip and labelled ‘inguinal vessels to the flanks’.
Verso: the bones of the left arm of a man and an ape, with a diagram to show the leverage obtained by the two differing attachments of the muscles.Provenance
Bequeathed to Francesco Melzi; from whose heirs purchased by Pompeo Leoni, c.1582-90; Thomas Howard, 14th Earl of Arundel, by 1630; Probably acquired by Charles II; Royal Collection by 1690
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Medium and techniques
Recto: Pen and ink over black chalk. Verso: Pen and ink and black chalk
Measurements
19.2 x 14.0 cm (sheet of paper)
Other number(s)