a) The distance between the thumb and the little finger was 10 cm

Clinical indicators of normal thumb length in adults - ScienceDirect

a) The distance between the thumb and the little finger was 10 cm. (b)

Define cubit, hand-span, arm-length, and foot-span.

a) The distance between the thumb and the little finger was 10 cm. (b)

Hansaplast Aqua Protect Plasters - For Waterproof Wound Protection

Motions Of The Thumb - Everything You Need To Know - Dr. Nabil Ebraheim

Here is a clever method to estimate how far away something is : r/lifehacks

Measuring Angle and Distance with your Thumb

What is the Measurement of Length? Definition, Units, Examples

Measurement of thumb pronation and palmar abduction angles with a small motion sensor: a comparison with Kapandji scores - Tomoyuki Kuroiwa, Akimoto Nimura, Shiro Suzuki, Toru Sasaki, Atsushi Okawa, Koji Fujita, 2019

Measuring thumb range of motion in first carpometacarpal joint arthritis: The inter-rater reliability of the Kapandji Index versus goniometry - Bhavana Jha, Mark Ross, Samuel WSL Reeves, Gregory B Couzens, Susan E