Head

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). 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, nerve 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, which collectively form the head.

Famous quotes containing the word head:

“[Rutherford B. Hayes] was a patriotic citizen, a lover of the flag and of our free institutions, an industrious and conscientious civil officer, a soldier of dauntless courage, a loyal comrade and friend, a sympathetic and helpful neighbor, and the honored head of a happy Christian home. He has steadily grown in the public esteem, and the impartial historian will not fail to recognize the conscientiousness, the manliness, and the courage that so strongly characterized his whole public career.”
—Benjamin Harrison (1833–1901)

“Dead drunk
is the term I think of,
insensible,
neither cool nor warm,
without a head or a foot.
To be drunk is to be intimate with a fool.”
—Anne Sexton (1928–1974)

“Thus Satan talking to his neerest Mate
With Head up-lift above the wave, and Eyes
That sparkling blaz’d, his other Parts besides
Prone on the Flood, extended long and large
Lay floating many a rood, in bulk as huge
As whom the Fables name of monstrous size,
Titanian, or Earth-born, that warr’d on Jove,
Briarios or Typhon, whom the Den
By ancient Tarsus held, or that Sea-beast
Leviathan,”
—John Milton (1608–1674)