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For humans, the front of the head (the face) is the main distinguishing feature between different people due to its easily discernible features, such as eye and hair colors, shapes of the sensory organs, and the wrinkles. Humans easily differentiate between faces because of the brain's predisposition toward facial recognition.
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. Today, physical and forensic anthropologists use craniometry to study the evolution of human populations, determining the origin of ancient remains such as the Kennewick Man.
The human skull is the bone structure that forms the head in the human skeleton. It supports the structures of the face and forms a cavity for the brain. Like the skulls of other vertebrates, it protects the brain from injury. [6] The skull consists of three parts, of different embryological origin—the neurocranium, the sutures, and the ...
The distinctive human nose shape, nostrils, and nasal septum; The cheeks, covering the maxilla and mandible (or jaw), the extremity of which is the chin; The mouth, with the upper lip divided by the philtrum, sometimes revealing the teeth; Facial appearance is vital for human recognition and communication. Facial muscles in humans allow ...
Cephalometry is the study and measurement of the head, usually the human head, ... Anders Retzius defined the cephalic index and classified different shapes of the ...
Antennae on the insect's head is found in the form of segmented attachments, in pairs, that are usually located between the eyes. These are in varying shapes and sizes, in the form of filaments or in different enlarged or clubbed form. [6] Insects have mouth parts in various shapes depending on their feeding habits.
Other organisms, such as whales, have their blowholes on their crown, causing a flattened head shape. Some bird species have a crest located on their crown, used for communication and courtship. Macroevolution of the human crown has led to different structures between modern and archaic human species, such as significant changes to the cranial ...
The head rests on the top part of the vertebral column, with the skull joining at C1 (the first cervical vertebra known as the atlas). The skeletal section of the head and neck forms the top part of the axial skeleton and is made up of the skull, hyoid bone, auditory ossicles, and cervical spine. The skull can be further subdivided into: