Chp 9 Flashcards
What is the general structure of articulations?
Articulations, or joints, are points where two or more bones meet, allowing for varying degrees of movement and stability.
What is the connection between mobility and stability of a joint?
Generally, increased mobility of a joint results in decreased stability, while increased stability limits the range of motion.
What are the structural classifications of joints?
Joints can be classified structurally as fibrous, cartilaginous, or synovial.
What are the functional classifications of joints?
Joints can be classified functionally as synarthroses (immovable), amphiarthroses (slightly movable), or diarthroses (freely movable).
Where are gomphoses located in the body?
Gomphoses are found in the dental joints where teeth fit into their sockets.
Where are sutures located in the body?
Sutures are found between the bones of the skull.
Where are syndesmoses located in the body?
Syndesmoses are found between the radius and ulna, and between the tibia and fibula.
What are the two types of cartilaginous joints?
The two types of cartilaginous joints are synchondroses and symphyses.
Where are synchondroses located in the body?
Synchondroses are found at the epiphyseal plates in growing bones and between the first rib and the sternum.
Where are symphyses located in the body?
Symphyses are found in the pubic symphysis and intervertebral discs.
What is the general anatomy of synovial joints?
Synovial joints consist of a joint capsule, synovial membrane, synovial fluid, articular cartilage, and ligaments.
What are the classes of synovial joints based on joint surface shapes?
The classes include hinge, ball-and-socket, pivot, saddle, condyloid, and plane joints.
What types of movement are permitted by hinge joints?
Hinge joints allow for flexion and extension.
What types of movement are permitted by ball-and-socket joints?
Ball-and-socket joints allow for flexion, extension, abduction, adduction, and rotation.
What types of movement are permitted by pivot joints?
Pivot joints allow for rotation.
What types of movement are permitted by saddle joints?
Saddle joints allow for flexion, extension, abduction, and adduction.
What types of movement are permitted by condyloid joints?
Condyloid joints allow for flexion, extension, abduction, and adduction.
What types of movement are permitted by plane joints?
Plane joints allow for gliding movements.
What are dynamic movements at synovial joints?
Dynamic movements include actions such as flexion, extension, rotation, abduction, and adduction.
