Introduction

In 1989 I took a job as a Health Education Outreach specialist at the Roper Mountain Science Center in Greenville, South Carolina. Working with Kate Freeman, who was in charge of developing the newly launched Outreach program, I helped create several lessons that were delivered to elementary schools throughout Upstate South Carolina. One of these lessons focused on the human hand. Though our hand lesson was well-crafted, it did not capture the attention of teachers. Requests for this class were few so it was soon dropped from our repertoire. My interest in studying the human hand lingered and I slowly began acquiring educational materials and activities on the topic. Eventually I used these to create a summer science program called "Handtastic" which I present to students who have completed grades 3-5. Each year the class varies a bit depending on what intrigues me but the basics remain the same. This blog is a spot for me to organize and archive my storehouse of knowledge on the human hand. Currently, I hold the position of Health Curator at the Science Center where my fascination with "handy" things began. I hope a few people will find the human hand as interesting as I do.

Thursday, November 29, 2007

Male or Female?


There is a memorable episode of the TV sitcom Seinfeld in which Jerry dates a woman with "man hands." I'm sure you can create a pretty clear picture of "man hands" in your mind. (Jerry didn't find them very attractive.)

What if you could just see the bones of one hand? Would you be looking at the hand of a male or a female? Is there a way to tell? The correct answer is: Maybe.

In a favorite activity book of mine,The Great Bone Mysteries (see "Resources"), the author describes how forensic scientists or crime scene investigators might tell if a skeleton is male or female. The easiest way to tell is by examining the pelvis, but if you have just a hand, the answer is not as clear.

This picture of the hand bones is a left hand, palm side up. The eight bones that form a cluster near the wrist are called carpals. The five bones which create the palm of the hand are metacarpals. The fourteen bones of the thumb and fingers are called phalanges. That makes 27 all together in one adult hand. (The number is different in young children.)

Turn your hand palm side up and compare the length of your index (pointer) finger with the length of the ring finger on the same hand. Which one looks longer? Typically (but not always) a female hand has an index finger that is longer than the ring finger. In a male, the ring finger is usually the longer of the two. So.... do you have "man hands?"

Wednesday, November 28, 2007

Self image

I was once told that the human hand is second only to the face in its effect on self image. I was startled by this idea because I'd simply never given that much thought to how my hands helped create an impression of me. Rings and nail polish or the lack thereof had contributed to my personal style at various times in my life, but had I never thought very much about the hands themselves.

If you think about it, an injury, scar, malformation, or tattoo on most parts of the body can be concealed as needed or desired. Only our faces and hands are "out there" for everyone to see most of the time, adding to the picture we create of ourselves. When we shake hands during an introduction, or wave hello, the people we meet record information about us. Even when hands are concealed by the owner's choice (Michael Jackson's famous glove comes to mind) the concealment causes us to form an impression. We can shove our hands in our pockets when we're nervous or uncomfortable. We can tap our fingers and gesture as we talk or raise our hands in prayerful supplication. If we see dirt under someone's fingernails as they work in a garden, an impression is formed; those same fingernails on the hands of a doctor or nurse would likely induce a different reaction. Our hands and how we use them help form an image of who we are.

I have rather prominent veins on the backs of my hands so I never thought they were very attractive until one day when I was working as a nurse in a hospital. A young female patient of mine nearly swooned as she offered effusive compliments on the appearance of the very hands to which I'd been indifferent. They were, she assured me, every bit as lovely as those of her beloved grandmother. As I wasn't much older than my patient, I was very flattered by her attention. This charming young lady coveted my hands and caused me to look at them in a new, more appreciative light. I hope one day to have a granddaughter who thinks as fondly of me as my patient did of her grandmother.

As a baby boomer, I've developed an increasing awareness of anti-aging creams, surgeries, and other interventions designed to "improve" personal appearance. As these youth-prolonging strategies proliferate, many of us are becoming more aware of how our hands contribute to our self image and we look more closely at products designed to eliminate age spots and plump up sagging skin.

Give some thought to YOUR hands. Are you sure you appreciate their contribution to how you feel about yourself? What if they looked different than they do? What if you injured your hand? Do you have a "wet noodle" handshake? Are you gifted with a comforting touch? Do you sport a manicure that gives you a stylish appearance? Or maybe your hands are special only in that they are beautiful in the eyes of someone you love.