Head
Anterior anatomical region in many animals, which tends to contain sensory and nervous organs and orifices for ingestion and breathing
Nº Q23640 ★★★★
Super Rare · Knowledge
Head
Anterior anatomical region in many animals, which tends to contain sensory and nervous organs and orifices for ingestion and breathing
A head is the part of an organism which usually includes the ears, brain, forehead, cheeks, chin, eyes, nose, and mouth, each of which aids 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, regardless of size.
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From Wikipedia
A head is the part of an organism which usually includes the ears, brain, forehead, cheeks, chin, eyes, nose, and mouth, each of which aids 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, regardless of size. Heads develop in animals by an evolutionary trend known as cephalization. In bilaterally symmetrical animals, nervous tissue concentrates 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.
Text: Wikipédia, CC BY-SA 4.0. · Image: Patrick J. Lynch, medical illustrator (CC BY 2.5) ·
