Human Skeletal System Types of Joints. Fibrous Joints (Immovable) Fibrous joints connect bones...
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Transcript of Human Skeletal System Types of Joints. Fibrous Joints (Immovable) Fibrous joints connect bones...
Fibrous Joints (Immovable)Fibrous Joints (Immovable)
Fibrous joints connect bones without Fibrous joints connect bones without allowing any movement.allowing any movement.
Sometimes called suturesSometimes called suturesEx. Skull, pelvis, teethEx. Skull, pelvis, teeth
Cartilaginous JointsCartilaginous Joints
Joints where bones are attached by cartilage. Joints where bones are attached by cartilage. These joints allow for only a little movement, These joints allow for only a little movement,
such as in the spine or such as in the spine or ribs.ribs.
Synovial JointsSynovial Joints
Synovial joints allow for much more Synovial joints allow for much more movement. movement.
Cavities between bones in synovial joints Cavities between bones in synovial joints are filled with synovial fluid. This fluid are filled with synovial fluid. This fluid helps lubricate and protect the bones. helps lubricate and protect the bones.
There are many types of synovial joints.There are many types of synovial joints.
Types of Synovial JointsTypes of Synovial Joints
HingeHingeSaddleSaddleBall and SocketBall and SocketEllipsoidEllipsoidPivotPivotGlidingGliding
Hinge JointHinge Joint
Allows extension and retraction of a limb. Allows extension and retraction of a limb. They allow a movement of 180° in one planeThey allow a movement of 180° in one planeEx. Elbow or kneeEx. Elbow or knee
Saddle JointSaddle Joint
Allows movement back and forth and up Allows movement back and forth and up and down, but does not allow for rotation.and down, but does not allow for rotation.
The thumb is the only example.The thumb is the only example.
Ball and SocketBall and SocketAllows for radial movement in almost any Allows for radial movement in almost any
direction. direction. Ex. hips and shoulders Ex. hips and shoulders rounded head of one bone fits into the rounded head of one bone fits into the
hollow, cup-shaped sockethollow, cup-shaped socket
Ellipsoid Joint (Condyloid)Ellipsoid Joint (Condyloid)
Similar to a ball and socket joint. Similar to a ball and socket joint. Allow the same type of movement to a Allow the same type of movement to a
lesser magnitude. lesser magnitude. Ex. KnucklesEx. Knuckles
Gliding JointGliding Joint
In a gliding or plane joint bones slide past In a gliding or plane joint bones slide past each other. each other.
Ex. Midcarpal and midtarsal joints Ex. Midcarpal and midtarsal joints Hand and footHand and foot
Pivot JointPivot Joint
Allow rotation around an axis. Allow rotation around an axis. Ex. neck and forearm. Ex. neck and forearm. In the neck the occipital bone spins over In the neck the occipital bone spins over
the top of the axis. In the the top of the axis. In the forearmsforearms the the radius and ulna twist around each other. radius and ulna twist around each other.
Quicktime Demo
ReferencesReferences
http://http://www.shockfamily.netwww.shockfamily.net/skeleton/JOINTS.HTML/skeleton/JOINTS.HTML
http://www.everydayhealth.com/arthritis/understanding/index.aspx?phttp://www.everydayhealth.com/arthritis/understanding/index.aspx?p==
http://www.rushcliffe-school.co.uk/PE/Documents/Types%20of%20Joints%20and%20http://www.rushcliffe-school.co.uk/PE/Documents/Types%20of%20Joints%20and%20Articulations.pdfArticulations.pdf
http://www.saburchill.com/chapters/chap0008.htmlhttp://www.saburchill.com/chapters/chap0008.html
http://www.besthealth.com/besthealth/bodyguide/reftext/html/skel_sys_fin.htmlhttp://www.besthealth.com/besthealth/bodyguide/reftext/html/skel_sys_fin.html
http://www.sci.port.ac.uk/rad/anatomy/05/004.htmhttp://www.sci.port.ac.uk/rad/anatomy/05/004.htm
http://www.botany.uwc.ac.za/sci_Ed/grade10/manphys/joints.htmhttp://www.botany.uwc.ac.za/sci_Ed/grade10/manphys/joints.htm
http://www.bbc.co.uk/science/humanbody/body/factfiles/joints/ellipsoidal_joint.shtmlhttp://www.bbc.co.uk/science/humanbody/body/factfiles/joints/ellipsoidal_joint.shtml
http://www.dummies.com/WileyCDA/DummiesArticle/Articulating-the-Importance-of-http://www.dummies.com/WileyCDA/DummiesArticle/Articulating-the-Importance-of-Joints-in-Anatomy.id-1209.html Joints-in-Anatomy.id-1209.html