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A horn is a permanent pointed projection on the head of various animals that consists of a covering of keratin and other proteins surrounding a core of live bone. Horns are distinct from antlers, which are not permanent.
Learn the differences and similarities between horns and antlers, two types of structures that protrude from the frontals of the skull of some mammals. Find out how they are formed, used, and shed by various species of cervids, bovids, and other groups.
In zoology, a horn is one of a pair of hard, pointed, often permanent projections on the head of various hoofed mammals (ungulates) consisting of a core of living bone covered by a sheath of keratin and other proteins. Examples of animals with true horns include antelopes, cattle, buffalo, and goats.
9 Ιαν 2023 · Introduction. The keratin in the epidermis, when cornified and thickened, is referred to as horn. Horn is particulary resistant to mechanical and chemical damage. The dermis of horn gives the structures their 3-D structure and shape.
True horns—simple unbranched structures that are never shed—are found in cattle, sheep, goats, and antelopes. They consist of a core of bone surrounded by a layer of horn (keratin) that is in turn covered by keratinized epidermis.
As shown in Figure 14.4.1, the gray matter is subdivided into regions that are referred to as horns. The posterior horn is responsible for sensory processing. The anterior horn sends out motor signals to the skeletal muscles.
Horns are part of the body of some animals. They grow on the animal's head. They are projections (things that stick out) made of hard skin. The horn has a lot of keratin in it, the same protein that is in human hair and nails.
