Anatomy of Joints Flashcards
Purpose of Joints
Union between rigid complexes such as bone or cartilage
Articulation
Movement
Growth
Types of Joints
Fibrous
Cartilaginous
Synovial
Fibrous
Dense fibrous connective tissue High tensile strength Little movement Skull bone-sutures Tooth socket- gomphosis Ligament between bones (radius and ulna) - syndesmosis
Cartilaginous
Primary- Synchondroses
Secondary- Symphysis
Synchondroses
Ossify with age
Epiphyseal plate
Joint between sternum and first rib
Symphysis
Do not ossify with age
Pubic symphysis
Intervertebral disc
Articular Cartilage
Synovial Joints
Hinge Pivot Saddle Condylar (ellipsoid) Plane Ball and socket
Hinge
Elbow
Knee
Ankle
Pivot
Between C1 (atlas) and C2 (axis)
Saddle
Base of thumb
Condylar (elliposoid)
between radius and carpal bones of wrist (wrist joint)
Plane
Between tarsal bones
Ball and Socket
Hip joint
Shoulder joint
Condyloid and Saddle movements
Flexion Extension Abduction Adduction Circumduction
Hilton’s Law
The nerve supplying a muscle that crosses over a certain joint also innervates that joint