Joints and Their Classifications
30 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What type of cartilage covers the articular surfaces of the bones?

  • Fibrocartilage
  • Hyaline cartilage (correct)
  • Elastic cartilage
  • Fibrous cartilage

How are the bones described in relation to their connection?

  • Free floating
  • Connected by a plate of fibrocartilage (correct)
  • Connected by a capsule
  • Connected by ligaments only

Which type of cartilage is involved in the structure that unites the bones?

  • Articular cartilage
  • Hyaline cartilage
  • Elastic cartilage
  • Fibrocartilage (correct)

What is the primary function of hyaline cartilage in this context?

<p>To cover the articular surfaces (B)</p> Signup and view all the answers

Which statement best describes fibrocartilage?

<p>It is involved in uniting bones. (B)</p> Signup and view all the answers

What is synovial fluid primarily responsible for in a joint?

<p>Reducing friction between articular surfaces (D)</p> Signup and view all the answers

Which type of joint allows for a vast range of movements and includes structures like a ball and socket joint?

<p>Ball and socket joint (A)</p> Signup and view all the answers

What structure covers the articulate surfaces of bones in a synovial joint?

<p>Hyaline cartilage (B)</p> Signup and view all the answers

What is a key characteristic of a plane joint?

<p>Permits the bones to glide past each other (B)</p> Signup and view all the answers

Which joint type is exemplified by the sternoclavicular joint?

<p>Plane joint (D)</p> Signup and view all the answers

What is the primary function of a closed fibrous sac lined by the synovial membrane?

<p>To prevent friction between two hard areas (B)</p> Signup and view all the answers

Where is the closed fibrous sac typically located?

<p>Between two friction-producing objects (C)</p> Signup and view all the answers

What does the closed fibrous sac contain?

<p>Synovial fluid (C)</p> Signup and view all the answers

What may occur in relation to the closed fibrous sac's connection to the joint cavity?

<p>It can communicate with the joint cavity (B)</p> Signup and view all the answers

Which characteristic is NOT true about a closed fibrous sac?

<p>It prevents contact between fluid-filled sacs (B)</p> Signup and view all the answers

What type of joint forms between the epiphysis and the diaphysis of a growing bone?

<p>Cartilaginous joint (C)</p> Signup and view all the answers

What is the primary characteristic of the union between the first rib and the manubrium sterni?

<p>Is immovable (A)</p> Signup and view all the answers

Which type of articulation allows no movement?

<p>Fibrous joint (D)</p> Signup and view all the answers

In what phase of bone development do epiphyseal unions occur?

<p>During childhood growth (C)</p> Signup and view all the answers

Which of the following joints is classified as immovable?

<p>Suture joint in the skull (D)</p> Signup and view all the answers

What is the main characteristic of the joints between the vertebral bodies?

<p>They permit only slight movements. (D)</p> Signup and view all the answers

Which joint is specifically mentioned as having a small range of movement?

<p>Symphysis Pubis (D)</p> Signup and view all the answers

Which statement best describes the mobility of the joints between the vertebral bodies?

<p>They have restricted movement capabilities. (C)</p> Signup and view all the answers

What type of joint is the Symphysis Pubis classified as?

<p>Cartilaginous joint (A)</p> Signup and view all the answers

What is a common feature of joints like the one between the vertebral bodies?

<p>They allow for minimal movement. (B)</p> Signup and view all the answers

What type of movement is NOT possible at an elliptical joint?

<p>Rotation (B)</p> Signup and view all the answers

Which of the following best describes an elliptical joint?

<p>A joint formed by an elliptical convex surface fitting into an elliptical concave surface (C)</p> Signup and view all the answers

Which joint serves as an example of an elliptical joint?

<p>Wrist joint (D)</p> Signup and view all the answers

Which types of movements can occur at an elliptical joint?

<p>Flexion, extension, abduction, and adduction (C)</p> Signup and view all the answers

Regarding the elliptical joint, which statement is true?

<p>It permits a combination of movements except rotation. (A)</p> Signup and view all the answers

Flashcards

Epiphyseal Plate

The growth plate found between the epiphysis (end) and diaphysis (shaft) of a growing bone, where new bone tissue forms during childhood.

Synchondrosis

A type of joint that is a cartilaginous joint, providing limited movement, found in areas like the epiphyseal plate or between the first rib and the manubrium.

Immovable Joint

A joint that does not allow any movement.

Fibrocartilage

A type of cartilage that is strong and flexible, found in areas that need to withstand both pressure and movement. It is composed of dense collagen fibers embedded in a matrix of chondrocytes.

Signup and view all the flashcards

Hyaline Cartilage

A smooth, glassy type of cartilage that covers the ends of bones in joints. It provides a low-friction surface for joint movement and absorbs shock.

Signup and view all the flashcards

Bone Union

The way bones are connected together, in this case, by a plate of fibrocartilage.

Signup and view all the flashcards

Articular Surfaces

The surfaces of bones within a joint, where they come into contact with each other.

Signup and view all the flashcards

Thin layer of Hyaline Cartilage

A thin layer of hyaline cartilage covers the articular surfaces of bones, providing a smooth and low-friction surface for movement.

Signup and view all the flashcards

Symphysis Joint

A type of joint where bones are connected by fibrocartilage, allowing for limited movement. Examples include the joints between vertebral bodies and the symphysis pubis.

Signup and view all the flashcards

Vertebral Bodies

The main, cylindrical part of each vertebra, which forms the central column of the spine.

Signup and view all the flashcards

Symphysis Pubis

A cartilaginous joint formed between the two pubic bones of the pelvis, allowing for limited movement during childbirth and other activities.

Signup and view all the flashcards

Limited Range of Movement

A characteristic of symphysis joints, where the bones can move slightly but are not designed for extensive motion.

Signup and view all the flashcards

Synovial Fluid

A lubricating liquid found within a joint, reducing friction between bones and allowing smooth movement.

Signup and view all the flashcards

Synovial Membrane

A thin layer of tissue that lines the inside of a joint capsule, responsible for producing synovial fluid.

Signup and view all the flashcards

Plane Joint

A type of joint that allows for gliding and sliding movements, with flat articulating surfaces.

Signup and view all the flashcards

Example of Plane Joint

The Sternoclavicular joint connects the clavicle (collarbone) to the sternum (breastbone) and allows for gliding movements.

Signup and view all the flashcards

Elliptical Joint

A type of synovial joint where an oval-shaped, convex surface fits into an oval-shaped, concave surface. It allows for movement in two planes: flexion/extension and abduction/adduction.

Signup and view all the flashcards

Flexion

A bending movement that decreases the angle between two bones.

Signup and view all the flashcards

Extension

A straightening movement that increases the angle between two bones.

Signup and view all the flashcards

Abduction

Movement away from the midline of the body.

Signup and view all the flashcards

Adduction

Movement towards the midline of the body.

Signup and view all the flashcards

What is a synovial membrane?

A thin layer of tissue that lines the inside of a joint capsule, producing synovial fluid for lubrication and nourishment.

Signup and view all the flashcards

What is synovial fluid?

A thick, clear fluid found within a joint capsule, acting as a lubricant to reduce friction and provide nutrients to cartilage.

Signup and view all the flashcards

What is a joint capsule?

A fibrous sac that encloses a joint, providing support and stability, and containing synovial fluid.

Signup and view all the flashcards

What is the function of a synovial membrane?

To produce synovial fluid, reducing friction and providing nourishment to cartilage within a joint.

Signup and view all the flashcards

Where are synovial membranes found?

They line the inside of joint capsules, separating the bones and cartilage.

Signup and view all the flashcards

Study Notes

Joints

  • Joints are sites where two or more bones meet.
  • Movement occurs or does not occur between bones in joints.
  • Joints are classified based on the tissue between the bones.

Objectives

  • List joint types
  • Describe joint classifications
  • Define characteristics of synovial joints
  • Describe sub-classifications of synovial joints
  • Define bursae

Definition

  • A joint is where two or more bones come together

Articular Surfaces

  • These are the areas of the bones where joints form.

Classification

  • Joints are classified as fibrous, cartilaginous, or synovial.

Fibrous Joints

  • Bones are joined by fibrous tissue.
  • Very little movement is possible.
  • Examples are sutures and gomphoses.

Cartilaginous Joints

  • Bones are connected by cartilage.
  • Two types: primary and secondary.
  • Primary: bones united by plate/bar of hyaline cartilage. Examples: union between epiphysis and diaphysis of a growing bone; between first rib and manubrium sterni.
    • No movement is possible.
  • Secondary: Bones united by plate of fibrocartilage, surfaces covered by thin layer of hyaline cartilage. Examples: joints between vertebral bodies; symphysis pubis.
    • Small range of movement possible.

Synovial Joints

  • Filled with synovial fluid.

    • Characteristics:

      • Capsule

      • Synovial membrane

      • Synovial fluid

      • Cavity

      • Articular surfaces covered by hyaline cartilage

      • Vast range of movement

  • Sub-classifications:

    • Ball and socket
    • Hinge
    • Pivot
    • Condylar
    • Saddle
    • Ellipsoid
    • Plane

Plane Joint

  • Opposed articular surfaces are flat.
  • Allows bones to slide past each other.
  • Examples: sternoclavicular and acromioclavicular joints.

Hinge Joint

  • Resemble a door hinge.
  • Allows flexion and extension.
  • Examples: elbow, knee, and ankle.

Pivot Joint

  • Central bony pivot surrounded by a ligamentous ring.
  • Allows rotation only.
  • Examples: atlantoaxial and superior radioulnar joints.

Condyloid Joint

  • Distinct convex surfaces that articulate with concave surfaces.
  • Allows flexion, extension, abduction, adduction, and small rotation.
  • Example: metacarpophalangeal joints.

Ellipsoid Joint

  • An elliptical convex surface fits into an elliptical concave surface.
  • Allows flexion, extension, abduction, adduction, but no rotation.
  • Example: wrist joint.

Saddle Joint

  • Articular surfaces are reciprocally concave-convex, resembling a saddle.
  • Permits flexion, extension, abduction, adduction, and rotation.
  • Example: carpometacarpal joint of the thumb.

Ball and Socket Joint

  • Ball-shaped head of one bone fits into socket of another.
  • Permits free movement (flexion, extension, abduction, adduction, medial/lateral rotation, circumduction).
  • Examples: shoulder and hip joints.

Articular Surfaces

  • Descriptions of articular surfaces in synovial joints, including their shapes and connections.

Capsule and Synovial Membrane

  • Description of the structure and function of the joint capsule and synovial membrane.

Stability

  • Stability determined by
    • Shape
    • Size
    • Arrangement of articular surfaces; ligaments; and tone of muscles around the joint.

Bursa

  • Closed fibrous sac lined by synovial membrane, containing synovial fluid.
  • Located between friction-producing parts.
  • Prevents friction between hard areas.
  • May communicate with joint cavity or be located separately.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

Joints - دار العلوم University PDF

Description

This quiz covers the types and classifications of joints, including fibrous, cartilaginous, and synovial categories. You will also learn about their characteristics and functions within the skeletal system. Test your knowledge on the definitions and functions of various joint types and associated structures like bursae.

More Like This

Joints and Classification Quiz
20 questions

Joints and Classification Quiz

PositiveElation avatar
PositiveElation
Classification of Synovial Joints
14 questions

Classification of Synovial Joints

BenevolentDramaticIrony avatar
BenevolentDramaticIrony
Classification of Synovial Joints
10 questions

Classification of Synovial Joints

CalmingCornet avatar
CalmingCornet
Knee Joint Classification
8 questions

Knee Joint Classification

StainlessGreatWallOfChina4122 avatar
StainlessGreatWallOfChina4122
Use Quizgecko on...
Browser
Open
Browser
Browser