Classifying Joints
What are the 3 structural classes of joints?
Fibrous, Cartilaginous, & Synovial
Peg-in-Socket joint; it holds tooth in socket
Gomphoses
Articulating bones are united by (blank).
Cartilage
All synovial joints are (blank)
Diarthrotic (freely movable)
This movement decreases the angle of the joint and reduces the distance between the two bones.
How do synarthrotic joints differ from diathrotic joints?
Synarthrotic are immovable; diathrotic are freely movable.
What are the 3 types of fibrous joints?
Sutures, syndesmoses, and gomphoses
True of False: Both symphyses and synchondrosis are synarthrotic
False; only synchondrosis is synarthrotic (immovabale)
This fluid acts as a lubricant, reducing friction
Synovial Fluid
The (blank) is the immovble bone, whereas the (blank) is the more movable portion.
Origin; insertion
What are the 6 types of synovial joints?
Plane, Hinge, Pivot, Condylar, Saddle, & Ball-and-Socket
Fibrous joints are held by (blank)
Collagen fibers of connective tissue
Pubic symphysis is an example of (blank)
Symphyses
What 3 factors affect the stability of synovial joints?
Shapes of articular surfaces, number & positioning of ligaments, and muscle tone
During (blank), the radius and ulna are parallel; however, during (blank), the radius and ulna form an X
Syndesmosis and symphysis are examples of (blank)
slightly movable joints (amphiathrotic)
If fibers are (blank), they provide little movement; if fibers are (blank), they provide large amount of movement
short; long
This type of cartilage holds symphysis joints
Fibrocartilage
These structures are essentially 'bags of lubricant' (hint: they are not technically joints)
Bursae & Tendon Sheaths
The (blank) is the most freely moving joint of the body; however, this causes it to be the most commonly dislocated joint.
Glenohumeral joint (shoulder joint);
Freely movable joints are mainly found in the (blank); immovable or slightly movable joints are found in the (blank).
appendicular skeleton (limbs); axial skeleton
What joints typically ossify as one ages?
Sutures
Epiphyseal plates are the most common example of (blank).
Synchondroses
What are the 6 distinguishing features of a synovial joint?
(Blank) deals with damaged ligaments, whereas (blank) deals with damaged tendons.
Sprain; strain