1:30-2:50 in Hogness Auditorium bring scantron Exam #1: Wednesday April 16th 1:30-2:50 in Hogness Auditorium bring scantron covers chapters 1, atlas A, 6-9 Material covered on Tuesday WILL be on exam #1 Quiz #1 closes Monday at 11pm review session Tuesday at 7pm in T-435 Health Science Building

True, false, floaters

Sacroiliac joint – SI joint See vertebral column features – SP’s, body, slight curve Sacroiliac joint – see in xray Ligaments – ST & SI Nerves out of holes Sacroiliac joint – SI joint

Name this cell. List one of it’s functions. Name this space. What is in this space? John broke his ulna, does he need crutches? The pelvis is made up of 3 bones that fuse, name them.

Joints Different type of joints fibrous cartilaginous synovial anatomy stabilizers temporomandibular joint TMJ syndrome shoulder joint common injuries knee and ankle joint Strider

Joint classification manner or type of material by which bones articulate relates to movement Fibrous or cartilaginous synovial

Fibrous bound by collagen fibers little or no movement Cartilaginous linked by cartilage some movement

Cartilage Chondro = cartilage Cells: chondrocytes Fibers: collagen or elastin Matrix: firm gel chondroitin sulfates proteoglycans Perichondrium: dense, irregular CT with chondroblasts

Examples of fibrous joints in the skull

Synovial joints freely moveable articulating bones covered with articular (hyaline) cartilage bones separated by joint cavity joint cavity contains synovial fluid joint is enclosed by joint capsule

Parts of a synovial joint Ligaments (extracapsular) Articular (hyaline) cartilage Joint (articular) capsule (Synovial membrane + fibrous capsule) Joint cavity (contains synovial fluid) Synovial fluid and warming up

sac filled with synovial fluid and bones Bursa sac filled with synovial fluid between muscles or tendons and bones for protection and sliding bursitis - inflammation Tendon Sheaths elongated bursae wrap around a tendon for protection and sliding tenosynovitis tendonitis

How do you stabilize a synovial joint? Name & how (4 ways)

Temporomandibular joint (TMJ) fossa Depress & elevate Medial & lateral excursion Protraction & retraction

TMJ dislocation

Masseter Temporomandibular ligament Temporalis TMJ syndrome

1:30-2:50 in Hogness Auditorium bring scantron Exam #1: Wednesday April 16th 1:30-2:50 in Hogness Auditorium bring scantron covers chapters 1, atlas A, 6-9 Material covered on Tuesday WILL be on exam #1 Quiz #1 closes Monday at 11pm review session Tuesday at 7pm in T-435 Health Science Building

Joints Exam #1: Wednesday April 16th 1:30-2:50 in Hogness Auditorium bring scantron covers chapters 1, atlas A, 6-9 includes material covered today

Ball and Socket joints Humeroscapular joint Coxal joint

Humeroscapular joint (Glenohumeral) articulating bones? flex & extend hyperextend abduct & adduct medial & lateral rotation circumduction What about protraction & retraction of the scapula?

Sternoclavicular joint Scapular anatomy acromion spine coracoid process glenoid cavity AC joint

Articular cartilage Glenoid labrum Tendon of biceps brachii

Acromioclavicular (AC) joint Acromion Supraspinatus Subdeltoid bursa Glenoid cavity Glenoid labrum

Rotator cuff muscles Posterior view Anterior view supraspinatus infraspinatus Teres minor subscapularis Rotator cuff muscles

Supraspinatus tendon Infraspinatus tendon Glenohumeral ligament glenoid labrum Subscapularis tendon Teres minor tendon Glenohumeral ligaments Lateral view of glenoid fossa

Shoulder separation – Acromioclavicular joint

1. What is this? Function? 2. What is this? Function? 3. What is this? Function? 4. When the head of the humerus comes out of the glenoid fossa, what is that injury called?

Tibiofemoral joint (knee) articulating bones tibia – femur (patellofemoral joint) movements- modified hinge flex extend rotation when flexed “locking” when fully extended

Menisci = Fibrocartilage pads Patellar surface Medial & lateral condyles Tibial plateau (proximal end of tibia) Medial meniscus Lateral meniscus Menisci = Fibrocartilage pads Knee flexed

Osteoarthritis (OA) vs rheumatoid arthritis (RA)

quads Prepatellar bursa patella quads patella Joint capsule meniscus ligament

Housemaid’s knee (from a wrestling website….) aka prepatellar bursitis

Intracapsular & extracapsular ligaments of knee Lateral (fibular) collateral lig. Ant. Cruciate lig. Post. Cruciate lig. meniscus Medial (tibial) collateral ligament Posterior Anterior

PCL: anterior displacement of femur when knee if flexed hyperflexion ACL: posterior displacement of femur when knee is extended hyperextension

Deviations of the tibia from the midline unequal weight distribution unequal wear & tear

before after Abnormal patella tracking can lead to chondromalacia (cartilage breakdown)

Rheumatoid arthritis (RA) Osteoarthritis (OA) Rheumatoid arthritis (RA) Case..

1. Name this structure 2. Name this structure (be specific) 3. Give one function of the structure in #2 (be specific) 4. List at least 6 movements that the shoulder can make 5. List at least 4 movements that the TMJ can make

Talocrural (ankle) joint Articulating bones Movements Talo = ankle Crural = pertaining to the leg

Medial (deltoid) ligaments Calcaneal (Achilles) tendon Medial (deltoid) ligaments retinaculum Lateral collateral ligaments (Anterior talofibular ligament – Sprained during inversion)

On a piece of paper, please tell me: Something important you learned today. Any important questions that remain unanswered. Leave papers at the front of the room Thank you!

Joints 1:30-2:50 in Hogness Auditorium bring scantron Exam #1: Wednesday April 16th 1:30-2:50 in Hogness Auditorium bring scantron covers chapters 1, atlas A, 6-9 includes information covered today! review session tonight at 7pm in T-435 Health Science Building