Articulations (joints) (2) Flashcards
The place of contact between bones
Joints
Some joints offer a great amount of mobility and others offer very little
T or F
True
Relationship between mobility and stability of a joint
Inverse relationship
Joints are classified according to…
Structural arrangement between bones and how much motion occurs
When a bone forms a joint with another bone…
Articulation
Most mobile and least stable joint
Glenohumeral joint (shoulder)
Least mobile, most stable joint
Suture
Most mobile to immobile
Glenohumeral joint -> hip joint -> elbow joint-> intervertebral joints -> suture
Joints in which bones are joined by dense regular connective tissue
Fibrous joints
Joints in which bones are joined by cartilage
Cartilaginous joints
Joints in which there’s a fluid filled cavity
Synovial joints
Joints located between the teeth and jaws
Fibrous joints
Sutures between skull bones
Fibrous joints
Pubic symphysis and intervertebral discs
Cartilaginous joints
Fibrous joints are
Immovable
Cartilaginous joints are
Slightly movable
Freely movable joints with a fluid filled cavity
Synovial joints
The joint cavity is lined with…
A synovial membrane
synovial membrane function
Produces synovial fluid for lubrication
Joint cavity is surrounded by a…
Capsule of connective tissue
Ends of the articulating bones are covered with…
Articular (hyaline) cartilage
Help provide structural support to the joint
Ligaments
Types of synovial joints
Plane, hinge, condylar, saddle, and ball/socket
Plane joint is also called the
Gliding joint
Allows movement to occur in a sliding matter
Plane joint
Example of plane joints
Intercarpal and intertarsal joints
Formed when convex and concave surfaces move on one another in a uniplanar movement
Hinge joint
Examples of hinge joints
Elbow, knee, and interphalangeal joints
Formed when a convex surface of one bone articulates with a concave surface of another in a biplanar manner
Condylar joint
Example of condylar joint
Metacarpophalangeal joints
Found when the articulating bones each have a convex and concave surface, allowing movement to occur at the right angles
Saddle joints
Example of saddle joint
Carpometacarpal joint of the thumb
Where’s the carpometacarpal joint located
In thumb between the metacarpal and trapezium
One where a spherical head and cup like depression articulates with one another, allowing multiaxial movement
Ball and socket joint
Example of a Ball and socket joint
Shoulder and hip joint
