A Drawing A Day 1236

Progress Shot 06

Ok, so here is the summary of the muscles on this sheet.

1/ Vastus Medialis
Action:
Extends leg at knee joint.

2/ Adductor Longus
Action: Adducts and contributes to flex thigh at hip joint.

3/ Adductor Magnus
Action: Adducts, flexes and laterally rotates thigh at hip joint. Hamstring part medially rotates and extends thigh.

4/ Psoas Major
Action:
Flexes and rotates the thigh laterally at hip joint.

5/ Illiacus
Action – Flexes and rotates laterally the thigh at hip joint, stabilises the hip joint.

The muscles on this sheet actively affecting the shape of the leg on the surface are: Vastus Medialis, and as part of the adductor group, Adductor Magnus and Adductor Longus.

Graphite and White Chalk on prepared Fabriano Accademia paper, 55 x 37cm

A Drawing A Day 1230

Progress Shot 11

The anatomical detail we learn and then use in art work is a language. And as such, it is ruled by the intention of expression. The image we want to communicate will determine which parts of the anatomical knowledge will make ti into the image or sculpture.
The basic principle is: the more detail is shown, the more the muscles are tensed and the more effort the model appears to be making. On the sheet below, drawing Nr 4 has the most relaxed muscles. The legs are relatively at ease. You can see how the shape of the legs gets simplified when the muscles are not tensed.
Another important aspect of drawing the muscles is their grouping. There are always several muscles in the same area that perform the same, or very similar task. The Adductor Minimus and Adductor Magnus are not the only 2 adductor muscles the body has in this area. But because they all perform the very similar function, they all tense at the very similar moment which then allows us to draw the adductor group instead of each separate adductor muscle, as you can see in all the drawings below.

Graphite and White Chalk on prepared Canson Mi–Teintes paper, 38 x 55cm