|
Lingula Of Mandible
The lingula of the mandible is a prominent bony ridge on the medial side of the mandible. It is next to the mandibular foramen. It gives attachment to the sphenomandibular ligament. Structure The lingula of the mandible is a prominent bony ridge on the medial side of the mandible In jawed vertebrates, the mandible (from the Latin ''mandibula'', 'for chewing'), lower jaw, or jawbone is a bone that makes up the lowerand typically more mobilecomponent of the mouth (the upper jaw being known as the maxilla). The jawbone i .... It is next to the mandibular foramen. It has a notch from which the mylohyoid groove originates. It gives attachment to the sphenomandibular ligament. Variation The lingula of the mandible can take many shapes, including triangular, truncated, and nodular. In a majority of people, this shape is symmetrical. See also * Lingula References External links * http://ect.downstate.edu/courseware/haonline/labs/l22/os2009.htm * * Bones o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skeletal System
A skeleton is the structural frame that supports the body of most animals. There are several types of skeletons, including the exoskeleton, which is a rigid outer shell that holds up an organism's shape; the endoskeleton, a rigid internal frame to which the organs and soft tissues attach; and the hydroskeleton, a flexible internal structure supported by the hydrostatic pressure of body fluids. Vertebrates are animals with an endoskeleton centered around an axial vertebral column, and their skeletons are typically composed of bones and cartilages. Invertebrates are other animals that lack a vertebral column, and their skeletons vary, including hard-shelled exoskeleton (arthropods and most molluscs), plated internal shells (e.g. cuttlebones in some cephalopods) or rods (e.g. ossicles in echinoderms), hydrostatically supported body cavities (most), and spicules (sponges). Cartilage is a rigid connective tissue that is found in the skeletal systems of vertebrates and invert ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mandible
In jawed vertebrates, the mandible (from the Latin ''mandibula'', 'for chewing'), lower jaw, or jawbone is a bone that makes up the lowerand typically more mobilecomponent of the mouth (the upper jaw being known as the maxilla). The jawbone is the skull's only movable, posable bone, sharing Temporomandibular joint, joints with the cranium's temporal bones. The mandible hosts the lower Human tooth, teeth (their depth delineated by the alveolar process). Many muscles attach to the bone, which also hosts nerves (some connecting to the teeth) and blood vessels. Amongst other functions, the jawbone is essential for chewing food. Owing to the Neolithic Revolution, Neolithic advent of agriculture (), human jaws evolved to be Human jaw shrinkage, smaller. Although it is the strongest bone of the facial skeleton, the mandible tends to deform in old age; it is also subject to Mandibular fracture, fracturing. Surgery allows for the removal of jawbone fragments (or its entirety) as well a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mandibular Foramen
The mandibular foramen is an opening on the internal surface of the ramus of the mandible. It allows for divisions of the mandibular nerve and blood vessels to pass through. Structure The mandibular foramen is an opening on the internal surface of the ramus of the mandible. It allows for divisions of the mandibular nerve and blood vessels to pass through. Variation There are two distinct anatomies to its rim. * In the common form the rim is V-shaped, with a groove separating the anterior and posterior parts. * In the horizontal-oval form there is no groove, and the rim is horizontally oriented and oval in shape, the anterior and posterior parts connected. Rarely, a bifid inferior alveolar nerve may be present, in which case a second mandibular foramen, more inferiorly placed, exists and can be detected by noting a doubled mandibular canal on a radiograph. Function The mandibular nerve is one of three branches of the trigeminal nerve, and the only one having motor innervat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphenomandibular Ligament
The sphenomandibular ligament (internal lateral ligament) is one of the three ligaments of the temporomandibular joint. It is situated medially to - and generally separate from - the articular capsule of the joint. Superiorly, it is attached to the spine of the sphenoid bone; inferiorly, it is attached to the lingula of mandible. The SML acts to limit inferior-ward movement of the mandible. The SML is derived from Meckel's cartilage. Anatomy The SML is a tough,'flat, thin band. It broadens inferiorly, measuring about 12 mm in width on average at the point of its inferior attachment. It is derived from the perichondrium of Meckel's cartilage. Attachments Superiorly, the SML is attached to the spine of the sphenoid bone (spina angularis by a narrow attachment. Inferiorly, it is attached at to lingula of mandible and the inferior margin of the mandibular foramen. Anatomical relations The lateral pterygoid muscle, auriculotemporal nerve, and the maxillary artery and m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elsevier
Elsevier ( ) is a Dutch academic publishing company specializing in scientific, technical, and medical content. Its products include journals such as ''The Lancet'', ''Cell (journal), Cell'', the ScienceDirect collection of electronic journals, ''Trends (journals), Trends'', the ''Current Opinion (Elsevier), Current Opinion'' series, the online citation database Scopus, the SciVal tool for measuring research performance, the ClinicalKey search engine for clinicians, and the ClinicalPath evidence-based cancer care service. Elsevier's products and services include digital tools for Data management platform, data management, instruction, research analytics, and assessment. Elsevier is part of the RELX Group, known until 2015 as Reed Elsevier, a publicly traded company. According to RELX reports, in 2022 Elsevier published more than 600,000 articles annually in over 2,800 journals. As of 2018, its archives contained over 17 million documents and 40,000 Ebook, e-books, with over one b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mylohyoid Groove
The mylohyoid line is a bony ridge on the internal surface of the mandible. It runs posterosuperiorly. It is the site of origin of the mylohyoid muscle, the superior pharyngeal constrictor muscle, and the pterygomandibular raphe. Structure The mylohyoid line is a bony ridge on the internal surface of the body of the mandible. The mylohyoid line extends posterosuperiorly. The mylohyoid line continues as the mylohyoid groove on the internal surface of the ramus. The mylohyoid muscle originates from the anterior (front) part of the mylohyoid line. Rarely, the mylohyoid muscle may originate partially from other surfaces of the mandible. The posterior (back) part of this line, near the alveolar margin, gives attachment to a small part of the superior pharyngeal constrictor muscle, and to the pterygomandibular raphe. Function The mylohyoid line is the site of attachment of many muscles, including the mylohyoid muscle, and the superior pharyngeal constrictor muscle. It is also the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lingula (other)
Lingula, Latin for "little tongue", may refer to: * ''Lingula'' (brachiopod), a brachiopod genus of the family Lingulidae, which is among the few brachiopods surviving today but also known from fossils over 500 million years old * A wide strap above the instep in sandals * In anatomy: ** the Lingula of left lung, one of the segments of the left lung with a tongue-shape ** The Sphenoidal lingula, a part of the sphenoid bone ** The Lingula of mandible, a ridge on the medial aspect of the body of the mandible, just anterior to the mandibular foramen ** the Lingula of cerebellum ** Taenia of fourth ventricle ** In the vasiform orifice of the Aleyrodidae Whiteflies are Hemipterans that typically feed on the undersides of plant leaves. They comprise the family (biology), family Aleyrodidae, the only family in the superfamily Aleyrodoidea. More than List of whitefly species, 1550 species have been ... a small, tongue-like organ assisting in the excretion of honeydew See also * Lingal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
