Nasal Silling Guttering Skull

There will be sharp ridges nasal silling rounded ridges or no ridges nasal guttering prognathism extended jaw caucasian nasal index longer and more narrow negroid nasal index shorter and wider mongoloid nasal index moderate.

Nasal silling guttering skull.

Determining ancestry from skeletal remains is a difficult task and it is becoming more and more complicated as interracial mixing becomes more common. Prognathism extended lower jaw. For example imagine from a skull and pelvis you determined the individual was an adult caucasian the height would be determine by. Nasal width mm nasal height mm.

Racial determination using skull notes on page 101 definitions nasal index the ratio of the nasal cavity. Therefore anthropologists examine numerous characteristics and analyze both the visual features and mathematical measurements of a skull before forming their conclusions. Measure the widest part of the nasal cavity and divide by the length from the top of the nasal bone to bottom of nasal spine nasal spine located at the base of the nasal cavity on the top part of the maxilla nasal silling or guttering on the base of the nasal cavity on either side of the nasal spine. Feel the base of the nasal cavity on either side of the nasal spine do you feel sharp ridges nasal silling rounded ridges or no ridges at all nasal guttering.

There will be sharp ridges nasal silling rounded ridges or no ridges. Nasal silling guttering no ridge guttering prognathism prognathic shape of orbital openings rectangular or square. Variable nasal spines caucasian asian african caucasian usually prominent spine. Skull definitions nasal index the ratio w l opening nasal spine located at the base of the nasal cavity nasal silling or guttering on the base of the nasal cavity.

Trait result european asian african. Nasal silling and guttering. Nasal spine feel the base of the nasal cavity on either side of the nasal spine do you feel sharp ridges nasal silling rounded ridges or no ridges at all nasal guttering. Nasal index 48 48 53 53 nasal spine prominent spine somewhat prominent spine very small spine nasal silling guttering sharp ridge silling rounded ridge no ridge guttering prognathism straight variable prognathic shape of orbital openings rounded.