The Major Divisions of the Human Race

২১ শে ফেব্রুয়ারি, ২০১৩ রাত ৯:৫৮

রেছ : A human race is defined as a group of people with certain common inherited features that distinguish them from other groups of people.



All men of whatever race are currently classified by the anthropologist or biologist as belonging to the one species, Homo sapiens





Most anthropologists recognize 3 or 4 basic races of man in existence today. These races can be further subdivided into as many as 30 subgroups.



- Caucasian races

(Aryans, Hamites, Semites)



- Mongolian races

(northern Mongolian, Chinese and Indo-Chinese, Japanese and Korean, Tibetan, Malayan, Polynesian, Maori, Micronesian, Eskimo, American Indian),



- Negroid races

(African, Hottentots, Melanesians/Papua, “Negrito”, Australian Aborigine, Dravidians, Sinhalese)











*Caucasion:

Skull: Dolicephalic(Long-Head),High forehead,Little supraobital development.

Face: Mainly Leptoproscopic( Narrow)Sometimes Meso- or even Euryproscopic, Neither Facial nor alveolar prognathism occurs except among some archaic peoples.

Nose:Long,narrow,high in both root and bridge.









*Mongoloid:

Skull: High incidence of Brachycephaly(Short Round Head)

American Indians while Mongoloid are often Dolicephalic.

Foreheads slightly lower than that of the Caucasoid.

No Supraobital development.

Face: Wide and short, projecting cheek bones, Prognathism rare. Shovel shaped incisors common especialy in Asia.

Nose: Mesorine(Low and Broad in both root and bridge.







*Negroid:

Skull: usually Dolicephalic, a small minority are Brachycephalic.

Forehead most often high, little supraobital development.

Face: Leproscopic (to a much lesser degree than the Caucasion), Prognathism common in most Negro populations.

Nose: Low & broad in root and bridge with characteristic depression at root.

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