joints and ligaments Flashcards
What are the three classifications of joints based on their motion capabilities?
A: Fibrous (immovable), Cartilaginous (slightly movable), Synovial (freely movable).
Q: Give an example of a fibrous joint.
A: Structures of the skull.
What is a cartilaginous joint?
A joint that is slightly movable, such as intervertebral discs.
What type of joint has the greatest amount of motion?
.
A: Synovial joints
What are the three types of synovial joints based on motion?
.
A: Uniaxial, Biaxial, Multiaxial
Describe a hinge joint and provide an example.
A: A joint that allows movement in one plane (flexion/extension), e.g., humero-ulnar (elbow) joint.
What is a pivot joint?
.
A: A joint that allows one bone to rotate around another, e.g., pronation/supination of the forearm.
Describe an ellipsoid joint.
A: An oval-shaped joint allowing movement in two directions, e.g., wrist joint.
What is a saddle joint?
A: A joint that allows movement in two planes, e.g., carpometacarpal joint of the thumb.
What characterizes a ball-and-socket joint?
A: Allows movement in many directions; examples include the shoulder and hip
joints.
Q: What is a gliding joint?
A: A joint allowing side-to-side movement, e.g., intercarpal joints.
What joints make up the pectoral girdle?
A: Sternoclavicular, Acromioclavicular,
Glenohumeral joints.
Describe the sternoclavicular joint.
A: Connects the sternum and clavicle
What is the function of the acromioclavicular joint?
What is the function of the acromioclavicular joint?
A: Unites the lateral end of the clavicle with
the acromion process of the scapula; shoulder separations can occur here.
