Tortora - Chapter 9 - Joints

Tortora - Chapter 9 - Joints - 9-1Chapter 9JointsJoints...

Info iconThis preview shows pages 1–14. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 9-1Chapter 9JointsJoints hold bones together but permit movementPoint of contact between 2 bonesbetween cartilage and bonebetween teeth and bonesArthrology = study of jointsKinesiology = study of motion9-2Classification of JointsStructural classification based upon:presence of space between bonestype of connective tissue holding bones togethercollagen fiberscartilage joint capsule & accessory ligamentsFunctional classification based upon movement: immovable = synarthrosisslightly movable = amphiarthrosisfreely movable = diarthrosis9-3Fibrous JointsLack a synovial cavityBones held closely together by fibrous connective tissueLittle or no movement (synarthroses or amphiarthroses)3 structural typessuturessyndesmosesgomphoses9-4SuturesThin layer of dense fibrous connective tissue unites bones of the skullImmovable (synarthrosis)If fuse completely in adults is synostosis9-5SyndesmosisFibrous joint bones united by ligament Slightly movable (amphiarthrosis)Anterior tibiofibular joint and Interosseous membrane9-6Gomphosis Ligament holds cone-shaped peg in bony socket Immovable (amphiarthrosis)Teeth in alveolar processes9-7Cartilaginous JointsLacks a synovial cavityAllows little or no movementBones tightly connected by fibrocartilage or hyaline cartilage2 typessynchondrosessymphyses9-8Synchondrosis Connecting material is hyaline cartilageImmovable (synarthrosis)Epiphyseal plate or joints between ribs and sternum9-9Symphysis Fibrocartilage is connecting materialSlightly movable (amphiarthroses)Intervertebral discs and pubic symphysis9-10Synovial JointsSynovial cavity separates articulating bonesFreely moveable (diarthroses)Articular cartilagereduces frictionabsorbs shockArticular capsulesurrounds jointthickenings in fibrouscapsule called ligamentsSynovial membraneinner lining of capsulesecretes synovial fluid containing hyaluronic acid slippery)brings nutrients to articular cartilage9-11Example of Synovial JointJoint space is synovial joint cavityArticular cartilage covering ends of bonesArticular capsule 9-12Other Special FeaturesAccessory ligamentsextracapsular ligamentsoutside joint capsuleintracapsular ligamentswithin capsuleArticular discs or menisciattached around edges to capsuleallow 2 bones of different shape to fit tightlyincrease stability of knee - torn cartilageBursae = saclike structures between structuresskin/bone or tendon/bone or ligament/bone9-13Arthroscopy & ArthroplastyArthroscopy = examination of jointinstrument size of pencilremove torn knee cartilages & repair ligamentssmall incision only...
View Full Document

This note was uploaded on 06/11/2009 for the course BIOL 251 taught by Professor Hurrell during the Spring '09 term at Delgado CC.

Page1 / 53

Tortora - Chapter 9 - Joints - 9-1Chapter 9JointsJoints...

This preview shows document pages 1 - 14. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online