unit 4 day 9 anatomy they always talk who never think. m. prior
TRANSCRIPT
Unit 4 Day 9 Anatomy
They always talk who never think.
M. Prior
Weeks Agenda
Synovial Joints
Joints and Movements
Injuries and Review
Friday - TEST
TEST on
FRIDAY
Synovial Joint
Obj. 17 Synovial Joints
Articular cartilage covers the surface of the bones.Joint cavity with spaceJoint cavity enclosed by double layered articular capsuleJoint space bathed by synovial fluidJoint supported by reinforcing ligaments
Synovial practice
_______________ covers the surface of the bones in synovial joints.
Synovial joints have a ________ with space.
The joint is bathed in ___________ fluid.
Synovial practice
CARTILAGE covers the surface of the bones in synovial joints.
Synovial joints have a CAVITY with space.
The joint is bathed in SYNOVIAL fluid.
Obj. 18Ball and socket synovial joints are fairly stable.The more ligament a joint has, the more stable.A ligament can stretch 6% of its length before it snaps.Tone of muscles that cross a joint contributes to joint strength
Name two places in your body you have synovial
joints?What tissue gives synovial
joints their strength?
a.Gliding/Plane Joint
SEE DIAGRAM IN NOTES
Objective 19: Movementswill be done tomorrow.
Objective 20:
Name the five types of joints.
See page 13 of your note packet.
b.Hinge joint
c. Pivot joint
d. Ellipsoid OR CONDYLOID joint between scaphoid and lunate bones of the wrist
e.Saddle joint between trapezium of the carpus (wrist)
f. Ball and Socket Joint
Working with your partner, list 5 types of joints and
be ready to share.
Objectives 21, 22
Separate note sheet.
Sprains
Stretching or tearing of ligament.
Poorly vascularized so slow to heal.
Obj. 21 Structure of Selected Synovial Joints
Shoulder- a ball and socket joint. Glenoid cavity of scapula articulates with humerus
Most freely moveable joint of the body
Stablized by tendons and rotator cuff muscle
Elbow- Hinged joint
Hip- ball and socketstrong, weight bearing
Knee – hinge joint *largest joint of body
Dislocation
Displacement of bones from their normal location.
Cartilage injuryCartilage tears under pressure. Does not repair.
Bursitis – inflammation of bursa.
Olecron bursitis
More typical image
Arthritis – inflammation of the joint accompanied by stiffness. 1 in 7 of you will
get it.
Complete questions 1-18 on the handout.