The head in a human and an ant.

The human head.

Female human head from front.

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In anatomy, the head of an animal is the rostral part (from anatomical position) that usually comprises the brain, eyes, ears, nose, and mouth (all of which aid in various sensory functions, such as sight, hearing, smell, and taste). Anatomy (from the Greek anatomia, from ana separate apart from and temnein, to cut up cut open is a branch of Biology that is the consideration Anatomy (from the Greek anatomia, from ana separate apart from and temnein, to cut up cut open is a branch of Biology that is the consideration The brain is the center of the Nervous system in animals All Vertebrates and the majority of Invertebrates have a brain Eyes are organs that detect Light, and send signals along the Optic nerve to the visual areas of the brain The ear is the sense organ that detects Sounds The Vertebrate ear shows a common biology from Fish to Humans with variations Anatomically a nose is a protuberance in Vertebrates that houses the Nostrils or nares which admit and expel air for respiration in conjunction with the The mouth, buccal cavity, or oral cavity is the first portion of the Alimentary canal that receives food and begins digestion by mechanically breaking up Olfaction (also known as olfactics or smell) refers to the Sense of smell. Taste (or more formally gustation) is a form of direct Chemoreception and is one of the traditional five Senses Some very simple animals may not have a head, but many bilaterally symmetric forms do. The Bilateria (ˌbaɪləˈtɪəriə are all animals having a bilateral symmetry, i

Anatomy generally

Bilateral symmetry

The very simplest animals do not have a head, but many bilaterally symmetric forms do. The Bilateria (ˌbaɪləˈtɪəriə are all animals having a bilateral symmetry, i Vertebrates in particular have distinctive heads, which is associated with the development of the neural crest in the developing vertebrate embryo. Vertebrates are members of the Subphylum Vertebrata, Chordates with backbones or spinal columns The grouping sometimes includes The neural crest, a transient component of the Ectoderm, is located in between the Neural tube and the epidermis (or the free margins of the Neural folds ^[1] The contents of the vertebrate head are protected by an enclosure of bone called the skull, which is attached to the spine. Bones are rigid organs that form part of the Endoskeleton of Vertebrates They function to move support and protect the various organs of the body produce In Human anatomy, the vertebral column ( backbone or spine) is a column of 34 Vertebrae the Sacrum, Intervertebral The head is the most complex anatomical construct in the anatomy of vertebrates. ^[2]

The head is of singular importance as it contains the brain, the nerve center in animals. The brain is the center of the Nervous system in animals All Vertebrates and the majority of Invertebrates have a brain

Cultural import

For humans, the head and particularly the face are the main distinguishing feature between different people, due to their easily discernible features such as hair and eye color, nose, eye and mouth shapes, wrinkles, etc.

People who are more intelligent than normal are sometimes depicted in cartoons as having bigger heads, as a way of indicating that they have a larger brain; in science fiction, an extraterrestrial having a big head is often symbolic of high intelligence. Intelligence (also called intellect) is an Umbrella term used to describe a property of the Mind that encompasses many related abilities such as the capacities The word cartoon has various meanings based on several very different forms of Visual art and Illustration. See also List of extraterrestrials in fiction In Popular cultures Life forms -especially intelligent life forms that are of extraterrestrial However, minor changes in brain size do not have much effect on intelligence in humans. [1]

In English slang, sometimes a boastful individual is said to have a "big head. English is a West Germanic language originating in England and is the First language for most people in the United Kingdom, the United States Slang is the use of highly informal Words and expressions that are not considered standard in the speaker's Dialect or Language. "

The weight of the average adult human head is about 3. 6 kilograms or 8 pounds.

Clothing

In many cultures, covering the head is seen as a sign of respect. Often, some or all of the head must be covered and veiled when entering holy places, or places of prayer. For many centuries, women in Europe, the Middle East, and South Asia have covered their hair as a sign of modesty. This trend has changed drastically in Europe in the 20th Century, although is still observed in other parts of the world. In addition, a number of religious paths require men to wear specific head clothing- such as the Jewish yarmulke, or the sikh turban; or Muslim women, who cover their hair, ears and neck with a scarf. "Kipa" redirects here For the supermarket please see Kipa (supermarket.

Different headpieces can also signify status, origin, religious/spiritual beliefs, social grouping, occupation, and fashion choices.

Notes

Cole Hobson, Nottingham, England holds the U. K record for the biggest head (area) this was achieved in January 2008.

References

• Campbell, Bernard Grant. Human Evolution: An Introduction to Man's Adaptations (4th edition), ISBN 0-202-02042-8

See also

• Headless
• Head and neck anatomy

External links

• The anatomy of a head injury.