This time, the emphasis is on words that mean fingers and toes and the beginning unit is dactylo-, dactyl- plus other word families that deal with fingers and/or toes as indicated by the links shown at the bottom of each page in the unit.
Fingers are what you can count on when everything else is lost.
Fingernails are what some people file while others cut them off and throw them away.
Our fingertips are so sensitive that a single touch sensor can respond to a pressure of less than 1/1,400 of an ounce or about 20 milligrams, which is about what an average-sized fly weighs.
Structurally, we hands are the most intricate components of a human body. In no other part of the body is so much machinery packed into so small a space.
As a hand, I have eight wrist bones, five bones in my palm, fourteen in my digits for a total of twenty-seven.
My supply of nerves to detect heat, touch, and pain is one of the most elaborate in the body. I have thousands of nerve endings per square inch, most heavily concentrated in my fingertips.