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.
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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)
“Piece by piece I seem
to re-enter the world: I first began
a small, fixed dot, still see
that old myself, a dark-blue thumbtack
pushed into the scene,
a hard little head protruding
from the pointillist’s buzz and bloom.”
—Adrienne Rich (b. 1929)
“Gentlemen, no one objects to the husband being the head of the wife as Christ was the head of the church—to crucify himself; what we object to is his crucifying his wife.”
—Susan B. Anthony (1820–1906)