Anatomia1

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NO JOINT temporomandibular joint: single mobile articulation of the head, is a synovial joint, articular disc has a fibrous tissue. Have movements: descent and ascent. Occlusal contact of the two dental arches. It also has movements: protrusion, the jaw is moved forward; retraction, jaw moves toward the back; lateralization, jaw moves left or right, and circumducció set of all previous movements. Muscles of mastication : Masseter muscle: origin, zygomatic arch insert, the body of the mandible, action, lifting the jaw, chewing.Pterigoïdal internal: source pterygoid apophysis; insertion in the inner angle of the jaw action, lifting the jaw. Temporary: original cast temporary insertion, coronoid al'apòfisi. These three muscles up to the dental arches al'oclusió (union of the two dental arches), action, lifting the jaw. Strica tell: it has two bellies. Origin, anterior belly of the lower jaw and the mastoid apophysis belly after the storm; al'hioide insertion, action, hioides elevation or depression of the mandible. Genis-hioïdal: origin, internal part of the jaw; the hyoid insertion, action, jaw dropping.Muscles of the little me: innervated by the facial nerve VII cranial nerve occipital-frontal: covers the entire cranial vault and has a fibrous band. Orbicular of the eyelids: surrounds the outside of the orbits. Muscles of the nose open and close the holes in the nasal cast. MU Case differences of neck skin of the neck or platisma: The superficial muscle layer that covers the region anteromedial lateral neck action, depresses the jaw and lower lip.Escale medium: origin, transverse apophyses of the cervical vertebrae; insertion of the first rib. Its function is the elevation of the 1st rib and rib cage during the entire process of inspiration. Esternoclidomastoï dal: origin, mastoid apophysis; insertion to the clavicle and esterno. Its function is the lateralization of the head.

Joints BODY: The articulation between the occipital il'atles, is a type diartrosis condyloid allowing flexo-extension movements of the head. Il'axis The articulation between the atlas, is a two points, between the articular apophyses one corresponding to a diartrosis type artròdia and another between the arch of the atlas and the axis odontoides apophysis, which is a diartrosi type trocoides; this point is allowing largely Rotational movements of the head.The articulation between the articular apophyses of the vertebrae are diartrosis type artròdia, major turning movements, flexion and extension of the column. The articulation between the dorsal vertebrae and ribs, both the articulation between the vertebral body and the head of the rib (costo-vertebral joint), or between the transverse apophysis of the tuberosity and the ribs (costo-transverse joint), corresponding to diartrosis type artròdia. The joints of the vertebral bodies: they are semimòbils joints (amfiartrosi) . They are bigger in the lumbar region,
These joints are important in the support function of the spine
The Sacro-iliac joints is embedded between the sacred coxis those that present a series of irregularities that can be adapted to articulate with the sacrum. Are synovial joints but have a minimal mobility for their irregularities and strong ligaments. The faces are covered with articular hyaline cartilage.The símfisi pubis is a cartilaginous joint between the two branches of the superior pubic. The movements of the spine are: il'extensió Antero-posterior bending. The lateral bending and rotation. The joints of the ribs, each rib articulates with the upper and lower faces of the bodies of two adjacent vertebrae, coinciding with the intervertebral disk.

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