Have a look at this page from Harvard University
http://www.fas.harvard.edu/~loebinfo/loebinfo/Proportions/humanfigure.html
4 inches
The average length of the lower leg of a human being varies greatly depending on ethnicity and sex. On average, the lower leg is about 13 to about 21 inches in length.
6,573,996 small intestines. The equator is 24,901.5 miles long, and the average human intestine is 20 feet long.
The average human tongue is 4 inches long.
The average length of the human tongue is four inches.
height 150cm arm length 62cm
An average human arm length will be around 600 mm or 0.6 m
There are no measurements that determine what the normal length of a human head is. It varies from race to race.
The average length of a single human nephron is approximately 30-35 mm.
4 inches
About 1 to 2 inches.
The average length of the lower leg of a human being varies greatly depending on ethnicity and sex. On average, the lower leg is about 13 to about 21 inches in length.
small intestine
upper central incisor 24
They should be Equal in length. However, the ration of the leg to the total height is about 0.61.
The average human hair length is about 0.5 inches (1.25 cm) per month. However, individual hair growth rates can vary based on genetics, age, and health factors.
about 5 inches o.o im pretty sure that the avg length is more than 5 inches. my neck is 6.2 ins.