I finally made it to the Queen’s Gallery for the last week of their astonishing exhibition of Leonardo drawings, the first time that so many have been displayed since they were shown at the Royal Academy in 1952. I should have known and expected the range of his different subjects, from his early Florentine studies of details of composition while working on paintings, but I don’t remember ever seeing his amazing anatomical studies, except in reproduction.

A skull (1489):-

The cardiovascular system (c.1509):-

The gastrointestinal tract and bladder (c.1508):-

The bladder (c.1508):-