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en.wikipedia.org/wiki/Human_head

The human head consists of a fleshy outer portion, which surrounds the bony skull. The brain is enclosed within the skull. The head rests on the neck, and the seven cervical vertebrae support it. The human head typically weighs between 2.3 and 5 kilograms (5.1 and 11.0 lb) The face is the anterior part of the head, containing the eyes, nose ...

www.reference.com/science/average-size-human-head-62364d028e431bf3

Doctors and researchers use data concerning the size of the head and brain to develop new advancements in medicine. This information related to the size of the human head is also useful to other professionals around the world. These include the fashion industry, safety equipment designers, eyeglass manufacturers, and other such groups.

www.scientificamerican.com/article/human-body-ratios

Ratios compare two quantities, like the size of one part of the body to the size of another part, or to the size of the whole. An example of a human body ratio is a person's arm span—the ...

en.wikipedia.org/wiki/Craniometry

Craniometry is measurement of the cranium (the main part of the skull), usually the human cranium.It is a subset of cephalometry, measurement of the head, which in humans is a subset of anthropometry, measurement of the human body.It is distinct from phrenology, the pseudoscience that tried to link personality and character to head shape, and physiognomy, which tried the same for facial features.

www.craftyarncouncil.com/standards/head-circumference-chart

Go to Top . Craft Yarn Council 3740 N. Josey Lane, Suite 152 Carrollton, TX 75007 Tel: 972-325-7232 Fax: 972-215-7333 E-mail us. If you experience problems, visit our Troubleshooting page.

www.cdc.gov/nchs/data/nhanes/nhanes3/cdrom/nchs/manuals/anthro.pdf

Anthropometry is the study of the measurement of the human body in terms of the dimensions of bone, muscle, and adipose (fat) tissue. Measures of subcutaneous adipose tissue are important because individuals with large values are reported to be at increased risks for hypertension, adult-onset diabetes

humanphenotypes.net/metrics/headsize.html

However, head size is more strongly correlated with absolute trunk length. Head size is also correlated with cranial volume, which reaches its greatest dimensions in arctic North Asia and North America. One theory is that dark winters lead to bigger human brains and eyeballs (Pearce and Dunbar, 2012). On this site, only types with a head length ...

www.ubs.iastate.edu/hat_sizing_chart.html

*These charts are for reference only. Fit may vary depending on the construction, materials and manufacturer..

www.quora.com/How-many-inches-is-the-human-head-in-circumference

Human heads, of course, vary. The easiest way to know the range of human head circumference is to go hat shopping! Hats are traditionally sold by the diameter of the hat, in inches. Times pi, and you have circumference. Going to Hats.com, they hav...

msis.jsc.nasa.gov/sections/section03.htm

3.2.3 Variability In Human Body Size Design Considerations {A} 3.2.3.1 Microgravity Effects Design Considerations {O} The effects of weightlessness on human body size are summarized below and are discussed in greater detail in Figures 3.2.3.1-1 and 3.2.3.1-2. The primary anthropometry effects of microgravity are as follows: