Head

A head is the part of an organism, which usually comprises the eyes, ears, nose and mouth, each of which aid in various sensory functions, such as sight, hearing, smell, and taste. Some very simple animals may not have a head, but many bilaterally symmetric forms do. Heads develop in animals by an evolutionary trend known as cephalization. In bilaterally symmetrical animals, nervous tissues concentrate at the anterior region, forming structures responsible for information processing. Through biological evolution, sense organs and feeding structures also concentrate into the anterior region; these collectively form the head.

Human head

The human head is an anatomical unit that consists of the skull, hyoid bone and cervical vertebrae. The term "skull" collectively denotes the mandible (lower jaw bone) and the cranium (upper portion of the skull that houses the brain). The skull can also be described as being composed of the cranium, which encloses the cranial cavity, and the facial skeleton (includes the mandible). There are eight bones in the cranium and fourteen in the facial skeleton.

Head (watercraft)

The head (or heads) is a ship's toilet. The name derives from sailing ships in which the toilet area for the regular sailors was placed at the head or bow of the ship.

Design

In sailing ships, the toilet was placed in the bow for two reasons. Firstly, since most vessels of the era could not sail directly into the wind, the winds came mostly across the rear of the ship, placing the head essentially downwind. Secondly, if placed somewhat above the water line, vents or slots cut near the floor level would allow normal wave action to wash out the facility. Only the captain had a private toilet near his quarters, at the stern of the ship in the quarter gallery.

In many modern boats, the heads look similar to seated flush toilets but use a system of valves and pumps that brings sea water into the toilet and pumps the waste out through the hull in place of the more normal cistern and plumbing trap to a drain. In small boats the pump is often hand operated. The cleaning mechanism is easily blocked if too much toilet paper or other fibrous material is put down the pan.

Head (music)

In its broadest sense, the head of a piece of music is its main theme, particularly in jazz, where the term takes on a more specific set of connotations. In other types of music, "head" may refer to the first or most prominent section of a song. The term may, though obtusely, be applied to classical music, insofar as classical pieces generally bear similar thematic elements, but the preferred term in this instance is (main) theme or subject. The term "head" is most often used in jazz and may refer to the thematic melody, an instance of it in a performance of the song, or a more abstract compilation of ideas as to what the song is. It may also, though uncommonly, refer to the first section of the melody, or the theme riff in the melody.

There is a slightly related musical direction, D.C. or da capo (Italian, from head), which means to go back to the very beginning of the sheet music and play to the end, typically ignoring all repeat signs.

What's in a head

The idea a head represents comprises a combination of elements. No one piece of written music defines what the "head" of many jazz tunes really is, but a boiler-plate jazz chart, which is often only a page long in large print, will tell you:

Bile (disambiguation)

Bile is a greenish-yellow alkaline fluid secreted from the liver of most vertebrates.

Bile may also refer to:

People

  • Abdi Bile (born 1962), Somali middle distance runner
  • Mingo Bile (born 1987), Angolan footballer
  • Moni Bilé, Cameroonian musician
  • Pastor Micha Ondó Bile (born 1952), Equatorial Guinean cabinet minister and ambassador
  • William I of Bimbia (birthname Bile), 19th century Cameroonian ruler
  • Other uses

  • Belenus, a god of Celtic mythology
  • Bile (Irish legend), a legendary ancestor of the Irish people
  • Bile (band), a New York industrial metal band
  • Bile language, a Southern Bantoid Jarawan language of Nigeria
  • Bile River, Guam
  • Birecik, Turkey, a city called Bile during the Crusades
  • Black bile, a humor in ancient and pre-modern medicine
  • Yellow bile, a humor in ancient and pre-modern medicine
  • See also

  • All pages with titles containing bile
  • Biles, a surname

  • Podcasts:

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    If you see me walking down the street,
    staring at the sky and dragging my two feet
    you just pass me by
    It still makes me cry
    you can make me whole again.
    if you see with another guy
    laughing and joking trying to get by
    I wont put you down
    coz I want you around
    you can make me whole again.
    Looking back on where we first met,
    I can not escape and I can not forget,
    baby you are the one
    you can do no wrong,
    you can make me whole again.
    Time is layin heavy on my heart
    seems I've got too much of it since we've been apart,
    my friends make me smile if only for while,
    you can make me whole again.
    Looking back on where we first met,
    I can not escape and I can not forget,
    baby you are the one
    you can do no wrong,
    you can make me whole again.
    For now I'll have to wait,
    but baby, if you change your mind
    don't be too late,
    'cos I just can't go on,
    its already been too long,
    but you can make me whole again.
    Looking back on where we first met,
    I can not escape and I can not forget,
    baby you are the one
    you can do no wrong,
    you can make me whole again.
    Looking back on where we first met,
    I can not escape and I can not forget,
    baby you are the one
    you can do no wrong,
    you can make me whole again.
    baby your the one,
    you can do no wrong,




    Latest News for: head bile

    Simone Biles, Caitlin Clark & Ilona Maher headline a list of athletes who made 2024 the year of women’s sport

    Sportingnews 06 Mar 2025
    In the all-around, Biles and Suni Lee became the first two all-around women gold medalists to go head-to-head in an all-around final, with Biles finishing at the top of the podium and Lee in second.
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