Podcast
Questions and Answers
What is the annular ligament?
What is the annular ligament?
c
Which ligament prevents the tibia from moving too far medially on the femur?
Which ligament prevents the tibia from moving too far medially on the femur?
B
Synovial joints are different from cartilaginous and fibrous joints due to the presence of a joint (synovial) cavity.
Synovial joints are different from cartilaginous and fibrous joints due to the presence of a joint (synovial) cavity.
True
Opposition and reposition occur only at the thumb or the first carpometacarpal joint.
Opposition and reposition occur only at the thumb or the first carpometacarpal joint.
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Joint classifications are known as structural classifications when based on the degree of motion they allow.
Joint classifications are known as structural classifications when based on the degree of motion they allow.
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Which ligament of the coxal joint supports the inferior aspect of the joint?
Which ligament of the coxal joint supports the inferior aspect of the joint?
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Which cartilaginous joint is found only in young, growing people?
Which cartilaginous joint is found only in young, growing people?
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Which of the following is an example of a pivot joint?
Which of the following is an example of a pivot joint?
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The coxal joint is an articulation formed by:
The coxal joint is an articulation formed by:
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Which type of fibrous joint is found between bones of the cranium?
Which type of fibrous joint is found between bones of the cranium?
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Which of the following is a joint found only in the skull?
Which of the following is a joint found only in the skull?
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What feature is NOT one of the three unique features of the synovial joint?
What feature is NOT one of the three unique features of the synovial joint?
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Which type of angular movement moves a body part away from the midline of the body?
Which type of angular movement moves a body part away from the midline of the body?
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Which of the following has the greatest range of motion?
Which of the following has the greatest range of motion?
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Which of the following is NOT a function of synovial fluid?
Which of the following is NOT a function of synovial fluid?
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Select the order of functional classes of synovial joints that represents the least number of axes to the most number of axes.
Select the order of functional classes of synovial joints that represents the least number of axes to the most number of axes.
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Which movement is an example of abduction?
Which movement is an example of abduction?
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Which of the following is NOT a function of joints?
Which of the following is NOT a function of joints?
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The shoulder and hip joints are similar because they are both:
The shoulder and hip joints are similar because they are both:
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What type of biaxial joint is characterized by articulating bones with a deeper complementary fit?
What type of biaxial joint is characterized by articulating bones with a deeper complementary fit?
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What movement caused Elizabeth's injury when the angle between her right foot and tibia increased?
What movement caused Elizabeth's injury when the angle between her right foot and tibia increased?
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What best describes cartilaginous joints?
What best describes cartilaginous joints?
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What is moving a limb away from the median plane of the body called?
What is moving a limb away from the median plane of the body called?
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Which of the following is a freely movable joint?
Which of the following is a freely movable joint?
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Kayleigh wears a cast to immobilize her elbow. What functional class of joint does this resemble?
Kayleigh wears a cast to immobilize her elbow. What functional class of joint does this resemble?
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What is the fibular collateral ligament?
What is the fibular collateral ligament?
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What is the posterior cruciate ligament?
What is the posterior cruciate ligament?
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What are connective tissue sacs lined with synovial membranes that act as cushions in places where friction develops called?
What are connective tissue sacs lined with synovial membranes that act as cushions in places where friction develops called?
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Where can pronation and supination occur?
Where can pronation and supination occur?
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What is the hip known as?
What is the hip known as?
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What type of joint is a ball-and-socket joint?
What type of joint is a ball-and-socket joint?
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Classify the elbow joint, which is structured with the convex surface of one bone fitting into the concave depression of another bone.
Classify the elbow joint, which is structured with the convex surface of one bone fitting into the concave depression of another bone.
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Which joint is associated with the rotator cuff?
Which joint is associated with the rotator cuff?
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What movement would you expect to see in a pivot joint?
What movement would you expect to see in a pivot joint?
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Which key feature distinguishes a synovial joint from other joint types?
Which key feature distinguishes a synovial joint from other joint types?
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Study Notes
Joint Types and Classifications
- Annular Ligament: A connective tissue structure encircling a joint.
- Tibial Ligament Function: Prevents excessive medial movement of the tibia on the femur.
- Synovial Joints: Characterized by the presence of a joint cavity, differing from cartilaginous and fibrous joints.
- Opposition and Reposition: Movements exclusive to the thumb at the first carpometacarpal joint.
Joint Classifications
- Structural Classifications: Based on the physical structure rather than the degree of motion allowed.
- Coxal Joint: Formed by the head of the femur fitting into the acetabulum.
- Fibrous Joints in Cranium: Linked by sutures, immovable connections found exclusively in the skull.
- Key Feature of Synovial Joints: The presence of a joint cavity distinguishes them from other joint types.
Movements and Functional Classes
- Angular Movement: Abduction moves a body part away from the midline.
- Multiaxial Joints: These joints offer the greatest range of motion.
- Joint Functions: Functions include movement but not necessarily a wide variety of motions.
- Joint Immobilization: Resembles synarthrosis when a cast is used for immobilization.
Synovial Fluid and Joints
- Functions of Synovial Fluid: Provides lubrication but does not protect tendons.
- Functional Classes of Synovial Joints: Ordered from least to most axes: nonaxial, uniaxial, biaxial, multiaxial.
- Hinge Joint: Defined by convex surfaces fitting into concave surfaces.
Specific Joint Features
- Bursae: Synovial membrane-lined sacs that reduce friction.
- Rotational Movement: Characteristic of pivot joints, allowing bones to rotate around an axis.
- Shoulder Joint and Rotator Cuff: The shoulder is supported by the rotator cuff muscles and tendons.
Cartilaginous Joints and Motion
- Cartilaginous Joints: Generally offer little to no motion; specific types like the epiphyseal plate are found in growing individuals.
- Saddle Joints: A type of biaxial joint with complementary convex and concave surfaces for mobility.
Examples of Joint Actions
- Plantar Flexion: Occurs when the angle between the foot and tibia increases as toes point downward.
- Pronation and Supination: Movements occurring at the proximal radioulnar joint in the forearm.
- Spreading Fingers: An example of abduction.
Summary of Joint Characteristics
- Coxal Joint and Hip: Both refer to the same structure; categorized as a ball-and-socket joint, allowing movement in multiple axes.
- Prevention of Movements: Ligaments like the fibular collateral and posterior cruciate fulfill roles in joint stability but may be noted as not applicable or varying in context for injury.
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Description
Test your knowledge on key terms and concepts from Chapter 8 of Anatomy and Physiology. This quiz includes definitions of important anatomical structures such as ligaments and synovial joints. Perfect for reinforcing your understanding of human anatomy.
