Module 4.4 Joints and Ligaments Flashcards
Fibrous joints
Between cranial bones *immovable
Cartilaginous Joints
Between vertebrae *slightly moveable
- vertebrae also separates by disks (which increase flexibility
- pelvic bones slightly movable bc theyre anteriorly joined by fibrous cartilage (the pubic symphysis)
- joint becomes more flexible during late pregnancy due to hormone changes, allow pelvis to expand during child birth
Synovial joints
- most joints
- freely moveable
- bones separated by joint cavity
Ligaments
Composed of fibrous connective tissue, binds bones together
Joint Capsule
Ligaments hold bones in place & form joint capsule
-lines with synovial membrane
Synovial fluid
-Produced by synovial membrane
Hinge joints
Ie: knee and elbow joints
-largely permit movement in one direction only
Ball and socket joints
Allow movement in all planes and even a rotational movement
Ie: hip (femur into socket of pelvis)
Shoulder joint
Saddle joint
Ie: thumb
-allows thumb to move freely cross over palm
Pivot Joint
-allows rotational movement
Ie: cervical spine (C1 and C2) allow rotation of vertebrae
Sternoclavicular Ligament
Joins sternum w/clavicle
Coracoclavicular Ligament
Joins coracoid process of scapula to clavicle
Coracoacromial Ligament
Joins coracoid process to acromion of the scapula
Coracohumeral Ligament
Connects head of humerus to coracoid process of the scapula
Tendons rotator cuffs shoulder
Supraspinatus
Infrapinatus
There’s Minor
Subscapularis
-help limit movement at shoulder so head of humerus is stabilized w/joint
