1.1.4 Movement at synovial joints

• Synovial joints are the most common type of joint in the human body


  True
• What covers the ends of bones in a synovial joint to allow for frictionless movement?

  Articular cartilage
• What is an example of a ball-and-socket joint?

  Shoulder joint
• Gliding joints allow sliding movement between flat bone surfaces.
• Where can a gliding joint be found in the human body?

  Wrist
• A hinge joint allows flexion and extension
• Where are gliding joints found in the body?

  Wrist and ankle
• Steps involved in the functioning of synovial joints:

  1️⃣ Joint capsule provides stability

  2️⃣ Synovial fluid reduces friction

  3️⃣ Articular cartilage allows smooth movement

  4️⃣ Synovial membrane secretes fluid
• Gliding joints allow planar movement between flat bone surfaces
• The joint cavity of a synovial joint is filled with synovial fluid
• The joint capsule is made of fibrous tissue and encloses the joint cavity
• Which structure secretes synovial fluid in a synovial joint?

  Synovial membrane
• The hinge joint in the elbow allows only flexion and extension movements


  True
• Which joint allows for movements like flexion, extension, abduction, adduction, and rotation?

  Ball-and-socket
• When a muscle contracts, it pulls on the tendon, which then pulls on the bone to cause movement


  True
• The joint is enclosed in a capsule filled with synovial fluid to reduce friction.
• The synovial membrane lines the inside of the joint capsule and secretes the synovial fluid.
• The pivot joint in the neck allows for rotation around a central axis


  True
• Order the types of synovial joints based on their characteristic movements:

  1️⃣ Ball-and-socket: Multi-directional movement

  2️⃣ Hinge: Flexion and extension

  3️⃣ Pivot: Rotation around a central axis

  4️⃣ Gliding: Sliding movement between flat surfaces
• Synovial joints provide extensive mobility compared to fibrous or cartilaginous joints

  True
• What type of movement does a pivot joint allow?

  Rotation
• Synovial joints facilitate smooth and flexible movement
• Synovial fluid reduces friction and nourishes cartilage.


  True
• Match the joint type with its example:

  Ball-and-socket ↔️ Shoulder, hip

  Hinge ↔️ Elbow, knee

  Pivot ↔️ Neck

  Gliding ↔️ Wrist, ankle
• What covers the ends of bones in synovial joints to allow for frictionless movement?

  Articular cartilage
• The lubricating fluid within the joint cavity is called synovial
• Synovial joint components work together to ensure efficient movement at the joint


  True
• What type of joint is found in the neck and allows rotation?

  Pivot
• What is the role of muscles in joint movement?

  Generate force for movement
• Match the factor affecting synovial joint movement with its impact:

  Joint Structure ↔️ Determines movement range

  Muscle Control ↔️ Powers and stabilizes movement

  Flexibility ↔️ Allows wider range of motion

  Aging ↔️ Reduces smoothness and mobility
• What are synovial joints characterized by?

  Key structural features
• Match the synovial joint type with its characteristic movement:

  Ball-and-socket ↔️ Multi-directional movement

  Hinge ↔️ Flexion and extension

  Pivot ↔️ Rotation around a central axis
• A ball-and-socket joint allows rotation.

  True
• Match the synovial joint component with its function:

  Joint Capsule ↔️ Provides stability

  Synovial Fluid ↔️ Reduces friction

  Articular Cartilage ↔️ Allows smooth movement

  Synovial Membrane ↔️ Secretes synovial fluid
• What type of joint allows abduction and adduction?

  Ball-and-socket
• Synovial joints are the most common type of joint in the human body.


  True
• The synovial membrane secretes synovial fluid.


  True
• What is the function of articular cartilage in a synovial joint?

  Smooth movement and protection
• Abduction involves moving a limb away from the body's midline
• The unique structure of synovial joints enables a wide range of physical activities