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Frontalis (cognomen)
Frontalis may refer to: * Crista frontalis, the frontal crest, a crest on the internal surface of the squama frontalis of the frontal bone * Frontalis muscle, a thin, quadrilateral fascia muscle located on the front of the head * Sinus frontalis, the frontal sinus, mucosa-lined airspaces within the bones of the face and skull * Squama frontalis, two surfaces of the squama of the frontal bone * Sutura frontalis, the frontal suture, a dense connective tissue structure that divides the two halves of the frontal bone of the skull in infants and children Subspecies * '' Bos gaurus frontalis'', a subspecies of the gaur, a wild bovine animal of South Asia and Southeast Asia * '' Chloropsis aurifrons frontalis'', a subspecies in the species ''Chloropsis aurifrons'', the golden-fronted leafbird, a bird See also * Occipitofrontalis muscle The occipitofrontalis muscle (epicranius muscle) is a muscle which covers parts of the skull. It consists of two parts or bellies: the occipital ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crista Frontalis
The frontal crest is a ridge on the internal surface of the squamous part of the frontal bone formed by the inferior convergence of the two edges of the sagittal sulcus. The frontal crest gives attachment to the falx cerebri. References Bones of the head and neck {{musculoskeletal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frontalis Muscle
The frontalis muscle () is a muscle which covers parts of the forehead of the skull. Some sources consider the frontalis muscle to be a distinct muscle. However, Terminologia Anatomica currently classifies it as part of the occipitofrontalis muscle along with the occipitalis muscle. In humans, the frontalis muscle only serves for facial expressions. The frontalis muscle is supplied by the facial nerve and receives blood from the supraorbital and supratrochlear arteries. Structure The frontalis muscle is thin, of a quadrilateral form, and intimately adherent to the superficial fascia. It is broader than the occipitalis and its fibers are longer and paler in color. It is located on the front of the head. The muscle has no bony attachments. Its medial fibers are continuous with those of the procerus; its intermediate fibers blend with the corrugator and orbicularis oculi muscles, thus attached to the skin of the eyebrows; and its lateral fibers are also blended with the latter mus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinus Frontalis
The frontal sinuses are one of the four pairs of paranasal sinuses that are situated behind the brow ridges. Sinuses are mucosa-lined airspaces within the bones of the face and skull. Each opens into the anterior part of the corresponding middle nasal meatus of the nose through the frontonasal duct which traverses the anterior part of the labyrinth of the ethmoid. These structures then open into the semilunar hiatus in the middle meatus. Structure Each frontal sinus is situated between the external and internal plates of the frontal bone.Frontal sinuses are rarely symmetrical. Their average measurements are as follows: height 28 mm, breadth 24 mm, depth 20 mm, creating a space of 6-7 ml. Blood supply The mucous membrane of the frontal sinuses receives arterial supply via the supraorbital artery, and anterior ethmoidal artery. Innervation The mucous membrane in this sinus is innervated by the supraorbital nerve, which contains the postganglionic parasy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Squama Frontalis
The squamous part of the frontal bone is the superior (approximately two thirds) portion when viewed in standard anatomical orientation. There are two surfaces of the squamous part of the frontal bone: the external surface, and the internal surface. External surface The external surface is convex and usually exhibits, in the lower part of the middle line, the remains of the frontal suture; in infancy this suture divides the frontal bone into two and later fuses. A condition where fusion has not taken place, may persist throughout life and is referred to as a ''metopic suture''. On either side of this suture, about 3 cm. above the supraorbital margin, is a rounded elevation, the frontal eminence (tuber frontale). These eminences vary in size in different individuals, are occasionally unsymmetrical, and are especially prominent in young skulls; the surface of the bone above them is smooth, and covered by the galea aponeurotica. Below the frontal eminences, and separated fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sutura Frontalis
The frontal suture is a fibrous joint that divides the two halves of the frontal bone of the skull in infants and children. Typically, it completely fuses between three and nine months of age, with the two halves of the frontal bone being fused together. It is also called the metopic suture, although this term may also refer specifically to a ''persistent frontal suture''. If the suture is not present at birth because both frontal bones have fused (craniosynostosis), it will cause a keel-shaped deformity of the skull called trigonocephaly. Its presence in a fetal skull, along with other cranial sutures and fontanelles A fontanelle (or fontanel) (colloquially, soft spot) is an anatomical feature of the infant human skull comprising soft membranous gaps ( sutures) between the cranial bones that make up the calvaria of a fetus or an infant. Fontanelles allow f ..., provides a malleability to the skull that can facilitate movement of the head through the cervical canal a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bos Gaurus Frontalis
The gayal (''Bos frontalis''), also known as the Drung ox or mithun, is a large domestic cattle distributed in Northeast India, Bangladesh, Myanmar and in Yunnan, China.Simoons, F. J. (1984). ''Gayal or mithan''. In: Mason, I. L. (ed.) ''Evolution of Domesticated Animals''. Longman, London. Pages 34–38. Taxonomy In his first description of 1804, Aylmer Bourke Lambert applied the binomial ''Bos frontalis'' to a domestic specimen probably from Chittagong. In 2003, the International Commission on Zoological Nomenclature fixed the first available specific name based on a wild population that the name for this wild species is valid by virtue of its being antedated by a name based on a domestic form. Most authors have adopted the binomial ''Bos frontalis'' for the domestic species as valid for the taxon. Phylogenetic analysis corroborates the taxonomic assessment that the gayal is an independent ''Bos'' species originating matrilineally from gaur, zebu and cattle. Chara ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chloropsis Aurifrons Frontalis
The leafbirds (Chloropseidae) are a family of small passerine bird species found in the Indian Subcontinent and Southeast Asia. They were formerly grouped with the ioras and fairy-bluebirds in the family Irenidae. As presently defined, the leafbird family is monogeneric, with all species placed in the genus ''Chloropsis''. Description The leafbirds range in size from , and in weight from . They resemble bulbuls, but whereas that group tends to be drab in colour, leafbirds are brightly plumaged, with the predominant green over the body giving rise to their common name. The family is mostly sexually dimorphic in their plumage, this can vary from the highly dimorphic orange-bellied leafbird to the Philippine leafbird, which exhibits no sexual dimorphism. Most of the differences between the sexes are in the extent of the other colours in the plumage, particularly in the colours around the head and the blue or black face mask, with females having less colour and a less exten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
