Asuhan keperawatan fraktur mandibula pdf

#ASUHAN KEPERAWATAN FRAKTUR MANDIBULA PDF PLUS#

Temporomandibular JointArticulationSynovial joint between the condyle of the mandible and the mandibular fossa in the squamous part of the temporal boneBoth bone surfaces covered with layer of fibrocartilage identical to the discNo hyaline cartilage, therefore an atypical jointTemporomandibular JointUnique feature of the TMJs is the articular disc.Composed of fibrocartilaganeous tissue Divides each joint into 2:Inferior compartmentSuperior compartmentTemporomandibular JointInferior compartment Allows for pure rotation of the condylar head,corresponds to the first 20 mm or so of the opening of the mouth.

#ASUHAN KEPERAWATAN FRAKTUR MANDIBULA PDF PLUS#

Lateral pterygoid2 heads:Superior:Infratemporal fossa Inferior:Lateral surface of the lateral pterygoidFuse into a short thick tendon that inserts into pterygoid foveathe upper fibres passing into articular disc and anterior part of the capsuleAction: side-to-side plus only muscle to open jaw Medial pterygoid2 heads:Deep:Larger Medial surface of the lateral pterygoid plate and the fossa between 2 platesSuperficial :Tuberosity of the maxilla and pyramidal process of palatine bonesInsert lower and posterior part of angle (with masseter)Action: upwards and forwards and medially TemporalisArises temporal fossa between inferior temporal line and infratemporal crestInserts at posterior border of the coronoid process and ascending ramusUpper and anterior fibres elevate the mandiblePosterior fibres (horizontal) retract the mandible (only muscles that do so) MasseterDivided into 3 headsSuperficial: largest headArises anterior 2/3rds of the lower border of the zygomatic archWide insertion to angle, forwards along lower border and upwards to lower part of ramusIntermediate:Middle 1/3 of the archDeep:Deep surface of the archAction: elevator and drawing forward the angleMasseterIntermediate and deep fuse and pass vertically downwards to fuse with ramusNerve and artery divide muscle incompletely into 3 partsMasseteric nerve (Br of anterior division of V3) runs between deep and intermediateBr of superficial temporal and transverse facial runs between superficial and intermediate Muscles of Mastication4 muscles of masticationMasseter TemporalisMedial pterygoid Lateral pterygoid Supplied by V3, testament to same embryologic origin as the mandible from the 1st branchial arch

Asuhan keperawatan fraktur mandibula pdf