Articulations joints Classification of Joints Structural named according

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Articulations “joints”

Articulations “joints”

Classification of Joints • Structural- named according to type of connective tissue that binds

Classification of Joints • Structural- named according to type of connective tissue that binds them • Functional- divided into three groups based on mobility

Structural Classification • Synarthroses (Fibrous joints) – Allow for limited movement or immovable •

Structural Classification • Synarthroses (Fibrous joints) – Allow for limited movement or immovable • Ex- teeth in jaw, skull sutures • Amphiarthroses (Cartilaginous joints) – Bones are joined by cartilage, limited movement • Ex- ribs and sternum, symphysis pubis • Diarthroses (Synovial joints) – Most mobile and numerous • Ex- shoulder, knee

Structure of Synovial Joint • Joint capsule- sleevelike projection periosteum, encases both ends of

Structure of Synovial Joint • Joint capsule- sleevelike projection periosteum, encases both ends of the bones • Synovial membrane- slippery surface that lines inner surface of joint capsule • Menisci (articular disks)- pads of fibrocartialge that divide joint cavity in two • Ligaments- connect bone together, white fibrous tissue • Bursae- sacs like cavities filled with synovial fluid, cushions joints

Click on link below to show video https: //www. youtube. com/watch? v=DLx. YDo. N

Click on link below to show video https: //www. youtube. com/watch? v=DLx. YDo. N 634 c

Uniaxial joints Movement around one axis Hinge Joint • Spool shaped process fits into

Uniaxial joints Movement around one axis Hinge Joint • Spool shaped process fits into concave socket – Ex- elbow joint Pivot • Arch shaped process that fits around peglike process – Ex- joint between 1 st and 2 nd cervical vertebrae

Biaxial Around two axes Saddle • Saddle shaped bone that fits into socket –

Biaxial Around two axes Saddle • Saddle shaped bone that fits into socket – Ex- thumb, only saddle joint in body Ellipsoidal (condyloid) • Oval condyle fits into elliptical socket – Ex- wrist

Multiaxial Around three+ axes Ball and Socket Gliding • Ball shaped process • Relatively

Multiaxial Around three+ axes Ball and Socket Gliding • Ball shaped process • Relatively flat fits into concave socket articulating surface – Ex- shoulder and hip joint – Ex- vertebrae, sternoclavicular, and acromioclavicular

Angular Movements- These change the size of the angle between two articulating bones. •

Angular Movements- These change the size of the angle between two articulating bones. • Flexion- decrease size of the angle between articulating bones. • Extension-straightening movement that return bones to anatomical position • Hyperextension- extending bones past anatomical position

Angular Movements • Abduction- movement away from medial plane • Adduction- movement toward medial

Angular Movements • Abduction- movement away from medial plane • Adduction- movement toward medial plane

Circular movementsarc like rotation • Pronation- turns palm side down • Supination- turns palm

Circular movementsarc like rotation • Pronation- turns palm side down • Supination- turns palm side up (anatomical position)

Circular Movements • Rotation- pivoting a bone on its axis • Circumductionmoves distal end

Circular Movements • Rotation- pivoting a bone on its axis • Circumductionmoves distal end of bone in circle

Gliding Movementsmovement across articular surfaces with out a change in angle Seen in between

Gliding Movementsmovement across articular surfaces with out a change in angle Seen in between carpals, tarsals and vertebrae

Special Movements- unique or unusual

Special Movements- unique or unusual

Special Movements- unique or unusual

Special Movements- unique or unusual

Inflammatory disease of the connective tissue of the joints • Causes destruction of bone

Inflammatory disease of the connective tissue of the joints • Causes destruction of bone and cartilage, crippling and deformity of the bones • Thought to be of autoimmune nature

Make a 3 column foldable (burrito? ) 1. In one column list the name

Make a 3 column foldable (burrito? ) 1. In one column list the name of the range of motion 2. Draw with arrows how it moves 3. List 1 or 2 example

JOINTS ARTICULATIONS Joints Articulations CLASSIFICATION OF JOINTS ClassificationJOINTS ARTICULATIONS Joints Articulations CLASSIFICATION OF JOINTS Classification
Articulations Articulations Joints Articulations Where bones MEET andArticulations Articulations Joints Articulations Where bones MEET and
Articulations Joints Joints Articulations Where 2 bones meetArticulations Joints Joints Articulations Where 2 bones meet
Joints CHAPTER 7 Joints or articulations articulations WhereJoints CHAPTER 7 Joints or articulations articulations Where
Joints Articulations Joints Articulations are where 2 orJoints Articulations Joints Articulations are where 2 or
Articulations Joints Articulations Body movement occurs at jointsArticulations Joints Articulations Body movement occurs at joints
Articulations Chapter 6 n Classification of Joints ArticulationsArticulations Chapter 6 n Classification of Joints Articulations
Articulations Chapter 8 Classification of Joints Articulations JointArticulations Chapter 8 Classification of Joints Articulations Joint
Articulations Articulations No Movement Articulations No Movement FibrousArticulations Articulations No Movement Articulations No Movement Fibrous
Articulations 1 Functions of articulations l Articulations WhereArticulations 1 Functions of articulations l Articulations Where
JOINTS Joints Joints or articulations sites where twoJOINTS Joints Joints or articulations sites where two
Articulations Bonebone Bonecartilage Boneteeth Structural Classification of ArticulationsArticulations Bonebone Bonecartilage Boneteeth Structural Classification of Articulations
Articulations and Movement Articulations or Joints Articulation orArticulations and Movement Articulations or Joints Articulation or
Articulations AKA Joints Articulations l Where two bonesArticulations AKA Joints Articulations l Where two bones
HUMAN ANATOMY LECTURE EIGHT ARTICULATIONS ARTICULATIONS or JOINTSHUMAN ANATOMY LECTURE EIGHT ARTICULATIONS ARTICULATIONS or JOINTS
Articulations Where bones meet Bone articulations joints AArticulations Where bones meet Bone articulations joints A
Joints Classification of Joints Structural Classification Presence orJoints Classification of Joints Structural Classification Presence or
Articulations Chapter 8 Structural Classification of Joints FibrousArticulations Chapter 8 Structural Classification of Joints Fibrous