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Which of the following is an example of a synovial joint?
What type of joint movement is characterized by the bending and straightening of a limb?
Which classification describes a joint that allows movement around a single axis?
Which type of movement occurs when a limb moves away from the midline of the body?
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What type of synovial joint allows movement in two different planes?
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Which of the following joints demonstrates multiaxial movement?
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Which of the following describes a joint that does not allow any movement?
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Which of the following joints allows for a rotational movement?
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Which of the following joints allows for rotation as its primary movement?
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Which type of synovial joint is characterized by a concave surface fitting into a convex surface, allowing for multiple movements?
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What movement type decreases the angle between two adjacent bones?
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Which joint movement is associated with the action of raising the foot upwards towards the shin?
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Which type of joint allows movement in two planes?
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Which action would best be described as moving a body part away from the midline?
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What type of synovial joint is primarily responsible for gliding movements?
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Which of the following is NOT a characteristic of uniaxial joints?
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Which of the following is NOT a classification of synovial joints?
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What type of synovial joint allows movement in only one plane or axis?
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Which type of movement is associated with condylar joints?
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What is the primary function of bursae in synovial joints?
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Which of the following can experience multiaxial movements?
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The elongated bursae around tendons are referred to as what?
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Which of the following describes the movement at a hinge joint?
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In terms of joint movement, a wave-like motion is most likely a characteristic of which type of joint?
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Study Notes
Articulations (Joints)
- Joints are the points of contact between bones, cartilage, or teeth.
- The study of joints is called arthrology
- Joints have varying degrees of stability and mobility
- More mobility means less stability, and more stability means less mobility
Classifications of Joints
- Classified by structure: Fibrous, Cartilaginous, Synovial
- Classified by function:
- Synarthrosis: immobile joint
- Amphiarthrosis: slightly movable joint
- Diarthrosis: freely moveable joint
Fibrous Joints
- Bones are held together by dense connective tissue
- No joint cavity
- Types:
- Suture: Synarthrosis, joint between skull bones
- Syndesmosis: Amphiarthrosis, joint between parallel bones (radius and ulna, tibia and fibula)
- Gomphosis: Joint between the tooth root and alveolar bone (alveolar socket) of the jaw
Synovial Joint
- A typical synovial joint includes:
- Articular cartilage that covers the ends of bones
- Synovial membrane on the inside of the joint capsule
- Joint cavity containing synovial fluid
- Ligaments that provide support and limit movement
Accessory Structures of Synovial Joints
- Bursa: Sacs outside most synovial joints
- Contains synovial fluid and reduces friction
- Found where ligaments, muscles, tendons and/or bones rub
- Tendon Sheaths: Elongated bursae around tendons
- Found where tendons rub together in confined areas (wrist and ankle)
- Fat Pads: Provide padding and protection within the joint
Classification of Synovial Joints
- Classified by the shape of the articular surface and type of movement
- Types:
- Plane joint (uniaxial)
- Hinge joint (uniaxial)
- Pivot joint (uniaxial)
- Condylar joint (biaxial)
- Saddle joint (biaxial)
- Ball-and-socket joint (multiaxial)
Movements of Synovial Joints
- Four types:
- Gliding motion: Articular surface slides back and forth or side-to-side (no angle change)
- Angular Motion: Increases or decreases the angle between bones
- Flexion, extension, hyperextension, lateral flexion, abduction, adduction, circumduction
- Rotational Motion: A bone turns on it's longitudinal axis: Lateral rotation, medial rotation, pronation, supination
- Special movements: Occur only at specific joints
- Depression vs. elevation, dorsiflexion vs.plantar flexion, inversion vs. eversion, protraction vs.
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Description
Test your knowledge of articulations and joints with this quiz focusing on their classifications, structures, and functions. Explore the intricacies of fibrous and synovial joints, along with their stability and mobility characteristics.
