Ch 9. Arthrology Flashcards
What is arthrology
science of joint structure, function, and dysfunction
What is kinesiology
The study of musculoskeletal movement
How are joints named
Typically derived from the names of the bones involved
How are joints classified
According to the manner in which the bones are bound to each other
What are the four major joint categories
Bony joints,
Fibrous joints,
Cartliagenous,
Synovial joints
What is a bony joint (synostosis)
An immobile joint formed when the gap between two bones ossifies, and the bones become, in effect, a single bone
(E.x: left and right mandibular bones in infants, cranial sutures in elderly, attachment of first rib and sternum with old age)
What is a fibrous joint (aka: synarthrosis, or synarthrodial joint)
Adjacent bones are bound by collagen fibers that emerge from one bone and penetrate into the other
What are the three kinds of fibrous joints
Sutures,
Gomphoses,
Syndesmoses
What are sutures
Immobile or slightly mobile fibrous joints in which short collagen fibers bind the bones of the skull to each other
What are the three sutures classifications
Serrate,
Lap (squamous),
Plane (butt)
Define serrate
Interlocking wavy lines
(Coronal, Sagittal, and Lamdoid sutures)
Define lap (squamous)
Overlapping beveled edges
(Temporal and parietal bones)
Define plane (butt)
Straight, non-overlapping edges
(Palatine processes of the maxillae)
Define gomphosis (fibrous joint)
Attachment of a tooth to its socket
What holds the gomphosis in place
The periodontal ligament
(Collagen fibers attach tooth to jawbone)
(Allows the tooth to move a little under the stress of chewing)
