cephalic index

[sə′fal·ik ′in‚deks]

(anthropology)

The ratio of maximum breadth to maximum length of the head multiplied by 100.

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Cephalic Index

the ratio of the head’s greatest breadth (transverse diameter) to its greatest length (longitudinal diameter), expressed in percent.

The cephalic index is used in anthropology for determining the head contour in the horizontal plane. When the index is under 74.9 it is called dolichocephalic; between 75.0 and 79.9, mesaticephalic; and above 80.0, brachycephalic. With the aid of the cephalic index, local anthropological types can be isolated within the major races of man. Group variations in cephalic index are already reflected in early childhood. In comparison with earlier times, there has been an increase since the Middle Ages in the cephalic index (brachycephali-zation), although a decrease in the index (debrachycephaliza-tion) was recorded at a number of locations between 1950 and 1970. The cephalic index is not related to intellect.

V. P. CHTETSOV

Cephalic Index

in anthropology, the degree of protuberance of the face and the parts of the face in a vertical or horizontal plane. A vertical cephalic index is characterized by the facial angle, by the angle of the nasal portion of the face, or by the angle of the alveolar portion of the face.

A face is classified according to its facial angle. Thus, a prognathous face has an angle up to 79.9°, a mesognathous face has an angle of 80.0° to 84.9°, and an orthognathous face has an angle of 85° or more. A horizontal cephalic index determines facial flatness at the level of the root of nose; it also determines the degree of protuberance of the cheekbones. Cephalic indexes are good racial indicators.

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References in periodicals archive

Regardless of their cephalic index classification, minimum, mean and maximum measurements of Hf and Hl obtained in this study's sample were (-9.96 mm; -2.87 mm; and +3.92 mm} and {0.00 mm; 1.31 mm; and 5.66 mm}, respectively (Table V).

Mandibular Foramen Location and Lingula Height in Dentate Dry Mandibles, and its Relationship With Cephalic Index/Localizacion del Foramen Mandibular y Altura de la Lingula Mandibular en Mandibulas Dentadas Secas, y su Relacion con el Indice Cefalico

Head was classified by cephalic index. Dominant and rare types of head in girls were brachycephalic (42.56%) and dolichocephalic (4.84%), respectively (Table III).

Cephalometry in 14-18 years old girls and boys of Shiraz-Iran high school/Cefalometria en ninas y ninos de 14-18 anos de la Secundaria de Shiraz, Iran

TCI--Transverse cephalic index, respectively the proportion of the maximum head height to its maximum breadth was calculated according to the formulae:

Cephalofacial morphological characteristics of Albanian Kosova population/Caracteristicas morfologicas cefalofaciales de la poblacion Albanesa de Kosovo

On basis of cephalic index head shapes group to four international categories, that including dolichocephal, brachycephal, mesocephal and hyperbrachycephal (Williams et al.; del Sol).

Morphological evaluation of head in Turkman males in Gorgan-North of Iran/evaluacion morfologica de la cabeza en hombres turcos en Gorgan del Norte de Iran

With noticing, the effect of racial, ethnic and geographical factors on head dimensions and lack of documented research about 17-20 years old female in this area, this study was done to determine the cephalic index and the types of head shapes in 17 -20 years old female in Gorgan- North of Iran.

The effect of ethnic factor on cephalic index in 17-20 years old females of North of Iran / Efecto del factor etnico en el indice cefalico en mujeres entre 17 y 20 anos de edad del Norte de Iran

ead shape Cephalic index (CI) range (%) Dolichocephalic CI < 74.9 Mesochepalic 75<CI<79.9 Brachycephalic 80<CI<84.9 Hyperbrachycphalic 85<CI<89.9 and CI<89.9 The data for each person was recorded in a special form and then analyzed by EPI6.

The variation of head shapes in 17-20 years old native Fars male in Gorgan-North of Iran / Variaciones en las formas de la cabeza en hombres nativos Fars entre 17-20 anos en Gorgan-Norte de Iran

SD--Standard Deviation, calculated for maximum head length (MHL), maximum head breadth (MHB) and Cephalic Index (CI).

THE STUDY OF CEPHALIC INDEX IN EASTERN ODISHA POPULATION

While according to Sarma (2006) in kagani goats; the mean lengths of the skulls were 24.72[+ or -]0.93 cm, with the width and cephalic index of 10.40[+ or -]0.61 cm and 41.95[+ or -]0.97 cm, respectively; whereas the skull length was 20.06[+ or -]1.71 cm in Mehraban sheep (Karimi et al., 2011) and 46.2 cm in Iranian native camels (Monfared, 2013b).

Morphological and Applied Anatomical Studies on the Head Region of Local Mizo Pig (Zovawk) of Mizoram/ Estudios Morfologicos y Anatomicos Aplicados en la Cabeza de Cerdo Local Mizo (Zovawk) de Mizoram

The study of cephalic index in living subjects in Gujarat region.

Distance of ear with reference to midline landmarks of face

In case of cephalic index, it was found that about 80% of the Chakma females were hyperbrachycephalic (Figure 1(a)).

Craniofacial anthropometric profile of adult Bangladeshi Buddhist Chakma females

The funicular index and cephalic index were calculated as follows;

Sexual dimorphism in Pseudonemorphus versteegi (Ritsema) (Coleoptera: Cerambycidae), citrus trunk borer [omega]

Preoperative photographs were obtained on all patients, and a cephalic index was measured on those with sagittal synostosis.

Endoscopic strip craniectomy: a minimally invasive treatment for early correction of craniosynostosis