Podcast
Questions and Answers
Which type of synovial joint allows for the greatest range of motion?
Which type of synovial joint allows for the greatest range of motion?
- Hinge joint
- Ball-and-socket joint (correct)
- Gliding/plane joint
- Condylar joint
A hinge joint allows for multi-axial movement.
A hinge joint allows for multi-axial movement.
False (B)
Name a specific example of a gliding/plane joint in the human body.
Name a specific example of a gliding/plane joint in the human body.
Joints between carpals or tarsals, or the joints between the articular facets of the vertebrae
The unique ability of our thumbs to grasp objects is primarily due to the presence of a __________ joint.
The unique ability of our thumbs to grasp objects is primarily due to the presence of a __________ joint.
Match the synovial joint type with its characteristic movement:
Match the synovial joint type with its characteristic movement:
Which movement is made possible by the pivot joint between the atlas and axis vertebrae?
Which movement is made possible by the pivot joint between the atlas and axis vertebrae?
The elbow joint is an example of a condylar joint.
The elbow joint is an example of a condylar joint.
Describe the movement that occurs at the joint between the radius and ulna when pronating the forearm.
Describe the movement that occurs at the joint between the radius and ulna when pronating the forearm.
Movement in two directions, as found between mandible and skull, is called ____ movement.
Movement in two directions, as found between mandible and skull, is called ____ movement.
Which of the following joints is an example of a ball-and-socket joint?
Which of the following joints is an example of a ball-and-socket joint?
Flashcards
Gliding/plane joint
Gliding/plane joint
Two flat surfaces that slide over one another.
Hinge joint
Hinge joint
Uniaxial movement, allowing flexion and extension.
Ball-and-socket joints
Ball-and-socket joints
Multi-axial movement, offering the greatest range of motion.
Condylar joints
Condylar joints
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Saddle joint
Saddle joint
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Pivot joints
Pivot joints
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Pronation
Pronation
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Radius
Radius
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Ulna
Ulna
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Study Notes
- Synovial joints are classified by bone shape, each allowing different types of movement.
Gliding/Plane Joint
- Allows two flat surfaces to slide over one another.
- Examples include joints between carpals or tarsals and the articular facets of vertebrae.
Hinge Joint
- Allows uniaxial movement (movement in one direction).
- Examples include the elbow, knee, and finger joints (interphalangeal joints).
Ball-and-Socket Joint
- Offers the greatest range of motion (multi-axial movement).
- Found between the proximal end of the humerus and the scapula.
Condylar Joint
- Permits bi-axial movement (movement in two directions).
- Examples include the joint between the mandible and skull, and the joints between phalanges and metacarpals.
- The mandible and skull movement allows you to move your jaw from side to side as well as to open/close your mouth.
- The joint between phalanges and metacarpals allows you to wag your fingers.
Saddle Joint
- A bi-axial joint that enables the grasping ability of the thumbs.
Pivot Joint
- Allows for rotational movement.
- An example is turning the neck from left to right, facilitated by the atlas and axis vertebrae.
- The atlas and axis vertebrae fit together snugly with the dens of the axis acting as a pivot point, around which the atlas rotates.
- Another example is the joint between the proximal end of the radius and ulna.
- Rotating your forearm as though you are opening a jar, turning a doorknob or pouring a glass of milk (this is called pronation).
- The radius (on the thumb side of your lower arm) rotates around the ulna (on the pinky finger side of your lower arm).
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