Joints (axial) Flashcards
Types of joints
- Fibrous (synarthroses) Low
- Cartilaginous (synchondroses/amphiarthroses)
- Synovial (diarthroses)
Fibrous: sutures
No movement • Bones joined by fibrous material • Found in the skull (fissure/suture lines) • Ossify with age
Syndesmoses
- Limited movement
- Joined by ligaments
- Example: splint bone-III Mtc bone in horses, radius-ulna
Gomphosis
- No movement
- Joined by dental ligament
- Example: tooth - socket
Cartilaginous joints
(may also be known as fibrocartilaginous joints or synchondroses)
• some movement (e.g. vertebrae)
• Little to no movement (e.g. pubic, mandibular symphysis, first sternocostal joint)
• Temporary (epiphyseal plates)
Synovial joints (diarthroses)
- Found throughout the body
- Highly mobile, termed diarthrosis
- Specialised structures provide support to these joints
Components of synovial joints
- Joint cavity enclosed by a joint capsule (filled with synovial fluid)
- Synovial membrane (inner part of the capsule)
- Articular cartilage (bone surface, hyaline)
- Fibrous layer of joint capsule
- Periosteum (outside of bone)
- Compact bone
• Stabilisers : ligaments - fibrous connective tissue & menisci
What is the movement and an example of a synovial plane joint
Translation (sliding)
Intervertebral
What is the movement and an example of a synovial hinge ( ginglymus ) joint
Pendular
Metacarpophalangeal, elbow
What is the movement and an example of a synovial Pivot (peg in a ring) joint
Rotation
Atlantoaxial
What is the movement and an example of a synovial Condylar (condyles in the concave adjacent surfaces) joint
Flexion-extension and rotation
Stifle (femotibial), temporomandibular
What is the movement and an example of a synovial Ellipsoidal (ovoid in a cavity) joint
Flexion-extension Abduction- adduction
Radiocarpal joint
What is the movement and an example of a Saddle (mix of convex- concave surfaces) joint
Flexion-extension Abduction- adduction Rotation
Distal interphalangeal joint
What is the movement and an example of a Spheroidal (ball-and-socket) joint
Almost all types of movement
Coxofemoral joint, scapulohumeral joint
Fibrous
:
• Sutures (skull bones)
• Syndesmoses(radius-ulna)
• Gomphosis (tooth socket)
Cartilaginous
:
• Synchondroses (epiphyseal plates and hyoid apparatus) • Symphysis (mandible, pubic bones, intervertebral)
Synovial:
the rest of the body (almost!):
• Seven types (according to movement)
Joints associated axial skeleton
Sutures
- Mandibular symphysis
- Synchondroses hyoid apparatus-skull
- Synovial temporomandibular joins (TMTJ)
- Synovial occipital bone and C1
- Cartilaginous intervertebral
- Vertebra to rib
- Rib to rib
- Rib to sternum (sternocostal) – Cart
Main joints of the forelimb
- Shoulder
- Elbow
- Radio-ulna
- Radiocarpal
- Intercarpal
- Carpo-metacarpal
- Metacarpo-phalangeal
- Interphalangeal
Main joints of the hind limb
- Sacro-iliac joint
- Hip joint
- Femorotibial joint
- Tibia-fibula
- Tibiotarsal
- Intertarsal
- Tarso-metatarsal
- Metatarso-phalangeal
- Interphalangeal
Sutures - name made with bones of cranium
Bones of cranium
Sutures (Fibrous)
Mandibular symphysis
Left and right hemimandibles
Symphysis (cartilaginous)
Temporohyoid
Temporal and stylohyoid (hyoid apparatus)
Synchondroses (cartilaginous)
Temporomandibular (TMJ)
Temporal and mandible
Synovial