Quiz 6 - Articulations Flashcards
Bones fastened together by thin bands of fibrous (dense regular) connective tissue
Fibrous
(between bone)
interosseous
(slightly moveable)
amphiarthrosis
(immovable)
Synarthrosis
Fibrous joint consisting of a broad fibrous band that forms the interosseous ligament; amphiarthrosis
Syndesmosis
Fibrous joint only between flat bones of the skull; synarthrosis
Suture
Fibrous joint; articulation between tooth root and bony socket (periodontal ligament); synarthrosis
Gomphosis
Joint of hyaline and/or fibrocartilage.
Cartilaginous
Cartilaginous joint; bones united by a plate of hyaline cartilage; synarthrosis… example
Synchondrosis
Epiphyseal Plate
Most _______ joints ossify by _______.
Synchondrosis
Puberty
Synchondrosis joint that does NOT ossify
1st rib & sternum - permanent joint
Cartilaginous; bone articular surfaces covered by hyaline cartilage which in turn is attached to a thick pad of fibrocartilage; amphiarthrosis
Symphysis
Joint where space between articulating bones filled with synovial fluid
Synovial
Diarthrosis
Freely movable
Movement classification of synovial joints
Diarthrosis
General structure of synovial joints
Articular ends of bone covered with thin layer of hyaline cartilage (i.e. the articular cartilage).
Joint encased in joint capsule.
Thick, fibrous outer layer contiguous with periosteum of bones. (part of synovial joint)
Fibrous joint capsule
Thin inner layer covering all non-cartilaginous surfaces (part of synovial joint)
Synovial membrane
Functions of synovial fluid
lubrication
cushion
nourishment/nutrients for articular cartilage
Fibrocartilage pad located between articular surfaces
Meniscus
Function of meniscus
Shock absorber
Stabilize
Closed fluid-filled sac; part of synovial joint
Bursa
Bursa contains _______ ______.
Synovial Fluid
Globular/spheroidal surface of one bone articulates with a cup-shaped surface of another bone. (type of synovial joint)
Ball-and-socket
Convex oval-shaped surface of one bone articulates with a concave elliptical surface of another bone. (type of synovial joint)
Condyloid
The only triaxial type of synovial joint.
ball-and-socket
Articulating surfaces have both concave and convex regions; surface of one bone fits complimentary surface of another. (type of synovial joint)
Saddle
The two biaxial types of synovial joints.
Condyloid & Saddle
Example of Condyloid synovial joint
Metacarpal/phalangeal joint
Example of Saddle synovial joint
Metacarpal #1 (thumb)/Trapezium joint
Articulating surfaces are nearly flat - nonaxial synovial joint
Gliding (sliding/planar)
Convex cylindrical surface of one bone articulates with concave cylindrical surface of another. (synovial joint)
Hinge
Cylindrical pin of one bone rotates within a ring formed of bone and ligament.
Pivot
Examples of gliding synovial joints
intercarpal/intertarsal joints, zygopophyseal joint - articular processes of vertebral column.
Two uniaxial types of synovial joints
Hinge & Pivot
Examples of hinge joints.
Elbow, interphallangeal joints
Examples of pivot joint.
C1 - C2, Proximal radial-ulnar joint (twist forearm motion)