Chapter 7 Lecture Flashcards
To articulate means?
To join
What 3 combinations can form a skeletal articulation?
Two or more bones
Bones and teeth
Bone and Cartilage
Arthrology is?
The study of articulations, also called joints
Kinesiology is?
The study of body movement (occurs at joints)
Greater movement=___________ strength
Less strength
How are joints typically named?
According to the bones or portions of the bones that united at the joint
What are the three functional classifications of for skeletal articulations and what is their degree of movement?
Synarthrotic—->Immovable
Amphiarthrotic——>Slighty moveable
Diarthrotic—->Freely moveable
What are the 4 major structural classifications?
Fibrous joint
Cartilaginous joint
Synovial joint
Bony fusion
What type of joint is has these three charactersistics?
- Binding connective tissue is fibers and there is no synovial cavity associated with joint
- Functionally little or no movement
- Two examples are sutures in skull and gomphosis
Fiberous Joint
What type of joint is has these three charactersistics?
- Binding tissue is cartilaginous and there is no synovial cavity associated with the joint
- Functionally little to no movement
- Example:Public symphysis
Cartilaginous joint
What type of joint is has these charactersistics?
- Presence of synovial cavity is the defining structural characteristic
- NOT based on a type of connective tissue;note the presence of fibrous and cartilage tissues
Synovial joint
What type of joint is has these charactersistics?
-Bone fuses;boundary disappears; metopic suture of frontal bone & epiphyseal line in adults are synostoses
Bony fusion
Sutures are?
Synarthrotic joints, fiberous; found in skull
Gomphosis are?
Synarthrotic joints; Fiberous, found in teeth and jaw bones
Synchondrosis are?
Synarthrotic joints, Cartilage, epiphyseal plate
Synostosis are?
Synarthrotic joints, Bones fuse, boundary is lost
Syndesmosis are?
Amphiarthrotic joints, fiberous; distal tibia and fibula, distal radius and ulna
Symphysis are?
Amphiarthrotic joints, Cartilaginous; public symphasis , interveterbral disks
All synovial joints are classified as _________.
diarthrotic joints
What are the two layers that surround the joint capsule of a synovial joint?
Outer fibrous capsule
Inter cellular layer (areolar)
What are two characteristics of the Outer fibrous layer?
Tough, fiberous; dense irregular connective tissue
Structurally continuous with the periosteum of bones
What are two characteristics of the inner cellular layer?
produces and secretes synovial fluid into synovial cavity
Lines cavity except for articular surfaces
What are three characteristics of Articular cartilage?
Covers articulating surfaces of bone
Typically identified as hyaline cartilage
Slick smooth surface aids in reducing friction if the articulating bones should touch