1 Chap 8 Joints Pgs.155-174 Learning Objectives: Read Chap 8. Review all notes & diagrams. Finish the last slide – the six types of synovial joints.Chap 8 Joints PgsLearning Objectives:Explain an articulation (joint).Classify joints based on structure and function. Describe their characteristics.Demonstrate common body movements.Identify and describe the main joints of the elbow, knee, hip, and shoulder.Explain the basis of common joint injuries such as rotator cuff injury.
2 Shoulder ProblemsA patient presents will extreme pain in the shoulder area, mobility is limited, and rest/ ice have not improved the situation over time. After thorough examination, it is determined that the patient’s cartilage is badly torn. Rotator cuff surgery is required:
3 Review What is an articulation? An articulation is also known as a _________.What are sutures (as in the coronal suture)?
4 Joints Weakest parts of the skeleton Two functions of joints Give the skeleton _________Hold the skeleton __________
5 Classification of Joints: Functional Pg. 157 Functional classification is based on the amount of ________ allowed by the jointThe three functional classes of joints are:Synarthroses – __________Amphiarthroses – ___________Diarthroses – ___________
6 Fibrous Joints Pg.157 The bones are joined by _______ tissues There is no joint _______Most are ____________There are three types:1. sutures (Example: seams in the skull)2. syndesmoses (bones connected by____________) Example: ligament connecting the distal ends of the tibia and fibula3. gomphoses (____ -in-socket type of fibrous joint) Example: peridontal ligament
7 Cartilaginous Joints Pg.158 Articulating bones are united by ________Lack a joint ______Two types:1. synchondroses – bar or plate of cartilage(Example: immoveable joint between thecoastal cartilage of the first rib andmanubrium)2. symphyses – articular surfaces of bones covered with hyaline cartlage which in turn is fused to a __________ pad (or plate) of ______________.Example: intervertebral joints
8 Synovial Joints Pg.160Those joints in which the articulating bones are separated by a ____________ joint cavity.All are _______ movableExamples – all limb joints, and most joints of the bodyAll have the following:a. Articular cartilageb. Joint (synovial) cavityc. Articular capsuled. ___________ fluide. Reinforcing ____________
9 Friction-Reducing Structures in Synovial Joints _________ – flattened, fibrous sacs lined with synovial membranes and containing synovial fluidCommon where ligaments, muscles, skin, tendons, or bones rub together____________ – elongated bursa that wraps completely around a tendon
10 Review of Joints (Thus Far) See handoutEstimated Time of completion = minutesWill check answers
11 Synovial Joints: Movement Pg. 164 The two muscle attachments across a joint are:1. ________ – attachment to the immovable bone2. _________ – attachment to the movable bone
12 Synovial Joint: Range of Motion ________ – slipping movements only________ – movement in one plane_______ – movement in two planes_______ – movement in or around all three planesThere are also 3 general types of movements: _______, _______, and rotation
13 Gliding Pg.163One flat bone surface _______ or slips over another similar surfaceExamples – intercarpal and intertarsal joints, and between the flat articular processes of the vertebrae
14 Angular Pg. 164_______ — bending movement that decreases the angle of the joint_________ — reverse of flexion; joint angle is increased_________ and plantar flexion — up and down movement of the foot________ — movement away from the midline________ — movement toward the midline__________ — movement describes a cone in space
24 Partner Activity Quickly pair with a partner. Each person should complete question #10 (a – p) pg 174 now in their workbook.Then demonstrate the motions (as listed under question #10 (a-p) pg 174 to their partner
25 Types of Synovial Joints Using pages as a guide name, describe and site examples of the six types of synovial joints:188.8.131.52.5.6.