Questions and Answers
Which is not correct regarding articulations?
False
The term 'diarthrosis' refers to a joint that is?
freely mobile
In fibrous joints, the articulating surfaces are held together by?
dense regular connective tissue
The sagittal suture is a(n)?
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Sutures are joints that are found?
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An articular capsule is present in?
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Gomphoses?
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Functionally, a gomphosis is categorized as a?
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The interosseous membrane between the radius and the ulna is an example of a?
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Structurally, a syndesmosis is a _________ joint; functionally, it is a __________
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A synarthrosis is?
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The pubic symphysis is classified as a?
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A synarthrotic joint would have?
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Which is not a cartilaginous joint?
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In a young person, the joint between the sphenoid bone and the occipital bone is a?
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What type of cartilage is located between the bones in a symphysis?
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Which is not true about synovial joints?
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Which is not a function of synovial fluid?
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Which are not considered to be features of a synovial joint?
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Fluid-filled sacs that cushion synovial joints are called?
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Synovial fluid is?
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Based on its range of motion, the elbow is classified as a(n) __________ joint.
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Which joint is multiaxial?
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Which of these synovial joints does not have at least one rounded or convex surface?
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The joint formed by the axis and atlas that permits the 'no' shaking of the head is a _____ joint.
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The metatarsophalangeal joints allow movement in two planes and are classified as _________ joints.
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Which is not a correct pairing of a joint with its classification?
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The ________ joint is the simplest synovial joint and also the least mobile synovial joint.
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If a heavy load is at one end of a lever, the distance between the fulcrum and that load is called the?
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Our calf muscles contract to cause plantar flexion, resembling the lever system of a wheelbarrow. Therefore, it is a _______ -class lever.
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Movement of a body part toward the main axis of the body is called?
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The movement that occurs when the trunk of the body moves in a coronal plane laterally away from the body is?
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If you move your head in such a way to look up at the ceiling, you are _________ your neck.
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Study Notes
Articulations Overview
- All articulations contain some type of cartilage.
- "Diarthrosis" refers to a freely mobile joint.
- Fibrous joints involve dense regular connective tissue connecting articulating surfaces.
Types of Joints
- The sagittal suture is a fibrous joint found between specific skull bones.
- Gomphoses are joints located exclusively in tooth sockets, classified functionally as synarthrosis, meaning they are immobile.
- The interosseous membrane between the radius and ulna is an example of syndesmosis, which is structurally a fibrous joint and functionally an amphiarthrosis, providing some movement.
- Synarthrosis joints have low mobility and high stability.
Cartilaginous Joints
- The pubic symphysis is recognized as a cartilaginous joint and classified as an amphiarthrosis, allowing slight movement.
- A synchondrosis is present between the sphenoid and occipital bones in young individuals.
- Fibrocartilage is the type of cartilage found in a symphysis.
Synovial Joints Characteristics
- An articular capsule is present in synovial joints to encapsulate the joint space.
- Synovial fluid nourishes the articular cartilage but does not circulate blood within the joint cavity.
- Features of a synovial joint do not include muscles, but they do contain bursae, which are fluid-filled sacs that cushion the joints.
Synovial Joint Classifications
- The elbow is classified as a uniaxial joint due to its movement in one plane.
- Ball and socket joints are examples of multiaxial joints, allowing movement in multiple directions.
- Plane joints do not have at least one rounded or convex surface and are categorized as the simplest and least mobile synovial joints.
- Pivot joints, such as the one formed by the axis and atlas, enable "no" shaking of the head.
- Metatarsophalangeal joints are condylar joints allowing movement in two planes.
Movement and Leverage
- Resistance arm refers to the distance between the fulcrum and a heavy load in a lever system.
- Calf muscles contracting to cause plantar flexion resemble a second-class lever mechanism, like a wheelbarrow.
- Adduction is the movement of a body part toward the main axis of the body, while lateral flexion occurs when the trunk moves laterally away from the body.
- Hyperextension of the neck occurs when the head is tilted backward to look at the ceiling.
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Description
This quiz focuses on key concepts from Chapter 9 of Anatomy and Physiology, particularly the details about articulations and joint classifications. Test your understanding of various types of joints, their structures, and related terminology. Ideal for students looking to reinforce their knowledge before exams.
