Strong and light, the skeleton of the average person accounts for less than 20 percent of body weight.
- When does a human embryo have its first heartbeat? A human embryo has its first heartbeat at the age of three weeks, when the heart of the embryo looks like a tube. As it begins to beat, it starts the blood circulating…
- What is the longest recorded attack of hiccuping, sneezing, or yawning? The longest hiccuping attack lasted 65 years. The longest sneezing fit lasted 978 days. The longest yawning ordeal took five weeks.
- How much skin covers the human body? The average body has 14 to 18 square feet of skin.
- What is the apple of one’s eye? The apple of one's eye is the pupil, which was likened to an apple because, in the ninth century, it was believed to be a solid round mass.
- Is there a gluteus minimus along with the gluteus maximus? Yes. There are three gluteus muscles, the large, fleshy muscles of the buttocks that connect the hipbone (the pelvic girdle) and the thighbone (the femur). The gluteus maximus is the muscle at the…
- Why does skin wrinkle when it is exposed at length to water? The skin on the foot or palm of the hand wrinkles when exposed to water because it expands. The thick, hardened layers of skin swell as water is retained.