In most vertebrates, the jaws are bony or cartilaginous and oppose vertically, comprising an upper jaw and a lower jaw. The vertebrate jaw is derived from the most anterior two pharyngeal arches … Jaw, either of a pair of bones that form the framework of the mouth of vertebrate animals, usually containing teeth and including a movable lower jaw (mandible) and fixed upper jaw (maxilla). Jaw pain may be mild or can be severe and affect your quality of life. Many factors can cause jaw pain, such as grinding your teeth, gum disease or a toothache. But jaw pain may also be a … The meaning of JAW is either of two complex cartilaginous or bony structures in most vertebrates that border the mouth, support the soft parts enclosing it, usually bear teeth on their oral margin, … The jaw consists of two main components: the upper jaw, known as the maxilla, and the lower jaw, called the mandible. These structures are connected by a joint called the temporomandibular … JAW meaning: 1. the lower part of your face that moves when you open your mouth: 2. either of the two bones in…. Learn more. The human jaw bone is a complex and highly functional structure forming the foundation of the lower face and skull. It is composed of two primary parts: the maxilla, the fixed bone of the upper … The lower, movable part of the jaw is the mandible. The upper, fixed part is the maxilla. Any of various structures of invertebrate animals, such as the pincers of spiders or mites, that function … 3. jaws, anything resembling a pair of jaws in shape or in power to grasp or hold. A jaw that’s too small, too large, or crooked can cause problems with chewing, speaking, breathing, and even sleeping. The shape of your jaws also affects the way your face looks.
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