Joints Flashcards
What are joints?
Are places of union between 2 or more bones
What is Hilton’s Law
The nerve that is supply the joint is also supply the muscles that move the joint and the skin covering the insertion
What are types of joints
Fibrous, cartilaginous and synoival
What are Fibrous Joints
They are joints that are made of Fibrous Tissue with no joint cavities. It permits little movement
What are types of Fibrous joints
Sutures and Syndesmoses
What is sutures
it is connective fibrous tisses that is found in the flat bones of the skull
What are syndesmoses
it is fibrous connective tissue that occurs as the inferior tibiofibular and tympanostapedial syndesmoses
What are cartilaginous joints
joints that are made cartilage with no joint cavity
what the 2 types of cartilaginous joint
Primary and Secondary
what is Primary Cartilaginous joint
made of hyaline cartilage. Has no movement but growth in the length of the bone. ha Epiphseal cartilage plates and sphenoocipital and manubriosternal synchondroses
What is Secondary Cartilaginous Joint
joined by Fibocartliage and has slight movement. This includes pubic symphysis and interverbral disks
What are synvoial Joints
has a greater degree of free movement and is classified by shape of articulation and type of movement
What are the 4 features of synovial joints
joint cavity, hyaline cartilage, synoival membrane and articular capsules
What are 6 types are synovial joints
Planar, hinge, pivotal, ball and socket, saddle, condylar
What is planar joint
where 2 flat articular surfaces and allow a simple gliding or sliding of bone over the other.
Where are planar joints
Proximal tibiofibular, intertarsal, intercarpal, intedrmetacarpal, carpometacarpal, sternoclavicular, acromioclavicular joint
what is hinge joint (ginglymus)
Like a door hinge.
What is the movement of hinge
Flexion and Extension
What is the movement of Planar
Gliding
Where are hinge joints
elbow, ankle and interphangeal joints
What are pivotal joint
where the central bony pivot turning within a bony ring
what is the movement of pivotal
rotation
Where are pivotal joints
superior and inferior radioulnar joint
atlantoaxial joints
What is condylar joints (ellipsoidal)
Where 2 convex condyles articulating with 2 concanve condyle
