Tendons on the back of the hand run up in much the same manner as the markings on the back of the glove (see Plate 13, Figs. 12, 13, and 14).
The outer fingers of the hand should radiate inwards towards the middle finger. They can be slightly flexed back and move independently of the body of the hand (Fig. 9 and Plate 13, Fig. 11).
Nails should be long and narrow, somewhat egg-shaped, broad end as base (Fig. 7). In the profile view the nail appears slightly convex, the little finger being most curved.
Oval-shaped wrinkled fines represent the knuckles, which are more marked at first line after leaving the body of the hand (Plate 13, Figs. 14 and 17).
Fingers appear longer in the back than front, as they do not finish on the opening (which is V-shaped when widest), but travel further into the back of the hand (Plate 13, Fig. 14), being held by a connecting web (D) in front.
Knuckles occur just below flesh openings, but not under them, being at the base of each finger (see Plate 13, Fig. 12).
The middle finger is the longest finger, the third next, and fourth (or little finger) the shortest. The ends should have a slight tilt back (Fig. 7), tapering from base to tip. Do not thicken at the joints when suggestion of suppleness and delicacy is desired.
The different planes of the hand are illustrated in Figs.6,
8, and 9 ; thumb and side of little finger being at 900 with front and back of hand, the ulna and radius bones fixing the limits of the planes at U and R.
Note the onion-shape formations for fingers and body of hands. The bones of the hand are shown in Fig. 5, in a side-view flexed position.
Hand Anatomy (Plate 13).
The little finger of the hand is shown in side plane at 900; also blocking arrangement for drawing of hand (Fig. 10), and the completed hand at Fig. 11.
Note how the ball of the thumb is fairly rounded in the open palm (Fig. n, C). It assumes a flattened appearance when folded over hand (Fig. 19, C).