The Joints Flashcards
(29 cards)
What are the 3 functional classifications and describe type of movement.
Give structural examples of each.
- Synarthroses: immovable
- Fibrous sutures
- Fibrous gomphosis (teeth)
- Cartilaginous synchondrosis (ends of ribs) - Amphiarthroses: slightly movable
-Fibrous syndesmosis (between tibia and fibula)
- Cartilaginous symphysis (pubic symphysis) - Diarthroses: freely movable
- Synovial
Which structural joint is joined by dense connective tissue
Fibrous
Which structural joint is joined by cartilage
Cartilaginous joints
What type of cartilage is joined does synchondroses and sympahyses use?
synchondroses
- hyaline
sympahyses
- fibrocartilage
What type of reinforcing ligament is ACL and PCL?
Intracapsular
What are some features of Synovial Joints?
- Articular cartilage: hyaline cartilage that covers ends of bones
- Synovial cavity
- Synovial fluid
What type of tissue does the outer fibrous capsule have?
irregular connective tissue
What type of tissue does the inner synovial membrane have?
Loose connective tissue
What are the 2 friction-reducing structures
Bursae (contain synovial fluid)
Tendon sheath
What is the role of Menisci?
-fibrocartilage
- separates articular surfaces to improve fit, stabilize joints, and reduce wear & tear
What are 3 stabilizing factors of synovial joints
- Shape of articular surface
- Ligament number & location
- Muscle tone keeps tendons taut as they cross joints
What type of joint and movement?
Intercarpal joints, intertarsal joints, joints between vertebral articular surfaces
- Plane joint
- Nonaxial movement
What type of joint and movement?
Elbow joints, interphalangeal joints
1.Hinge joints
2. Uniaxial movement
What type of joint and movement?
Proximal radioulnar joints
Pivot joints
uniaxial movement
What type of joint and movement?
Metacarpophalangeal (knuckle) joints, wrist joints
Condylar joint
biaxial movement
What type of joint and movement?
Joints on the thumb
Saddle joint
biaxial movement
What type of joint and movement?
Shoulder joints and hip joints
Ball-and-socket joint
Multiaxial movement
What is the easiest joint to dislocate?
Temporomandibular joint
What is the role of the acetabular labrum
Enhances depth of socket
What is the ligament of the head of the femur for?
Less for support, more for blood flow
What is the ball-and-socket joint called for the shoulders that is slightly deepened by rim of fibrocartilage
glenoid labrum
What ligament helps support weight of upper limb?
Coracohumeral ligament
What are the 3 joints of the knee?
Femoropatellar joint
Lateral & Medial tibiofemoral joints
What is the role of the lateral and medial collateral ligament
prevent rotation when knee is extended
