Chapter 9: Joints Flashcards
(40 cards)
Any point where two bones meet is called a ___________, whether or not the bones are mobile at the interface.
Joint (articulation)
The science of joint structure, function, and dysfunction.
Arthrology
The study of musculoskeletal movement.
Kinesiology
What are the 4 major categories of joints? BFCS
Bony
Fibrous
Cartilaginous
Synovial
An immobile joint formed when the gap between two bones ossifies and they become a single bone. Can form by ossification of either fibrous or cartilaginous joints.
Bony joint (synostosis)
Also called a synarthrosis is a joint in which adjacent bones are bound by collagen fibers that emerge from one bone, cross the space between them and penetrate into the other.
Fibrous joint
What are the 3 kinds of fibrous joints? SGS
Sutures
Gomphoses
Syndesmoses
In syndesmoses, the fibers are longer and attached bones are more mobile. What is one example?
Shafts of radius and ulna have syndesmosis between them
Also called amphiarthrosis joint where 2 bones are linked by cartilage, two types are synchondroses and symphyses.
Cartilaginous joints
Cartilaginous joint in which bones are joined together by hyaline cartilage. Example, temporary joint between the epiphysis and diaphysis of a long bone in a child.
Synchondrosis joint
A cartilaginous joint in which two bones are joined by fibrocartilage one example is pubic symphysis and the cartilage between vertebrae
Symphysis
Also known as diarthrosis which is a freely movable joint that includes the elbow, knee or knuckle.
Synovial joint
These joints contain articular cartilage, a joint cavity, synovial membrane, synovial fluid, joint capsule, fibrous capsule.
Synovial joints
Crescent-moon shaped cartilages that absorb shock and pressure guide bones across each other, improve fit between bone, and stabilize joint in the knee
Meniscus
A strip or sheet of tough collagenous connective tissue that attaches a muscle to a bone.
Tendon
A tissue that attaches one bone to another bone
Ligament
A fibrous sac of synovial fluid located between adjacent muscles where tendon passes over a bone or between bone and skin. Cushions muscles and helps tendons slide more easily over joints.
A bursa
This synovial joint is created by the femur, tibia, patella, and fibula.
Tibiofemoral (knee) joint
The patellar, tibial collateral, anterior cruciate (ACL), posterior cruciate are all ligaments that are a part of which joint?
Tibiofemoral (knee) joint
The quadriceps femoris tendon, qudriceps femoris muscle, sartorius, vastus lateralis, and vastus medialis are attached to which joint?
Tibiofemoral (knee) joint
What type of lever is the tibiofemoral joint?
Third class lever
What class of synovial joint is the tibiofemoral? Why?
Hinge joint because moves freely in one plane with very little movement in any other plane.
What are the joint movements of the tibiofemoral joint?
Flexion
Extension
Arthritis, torn ACL, torn meniscus are all injuries involving which joint?
Tibiofemoral knee joint