Joint Classification Overview
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Questions and Answers

Name the 2 categories of joints.

Structure/Composition, Action/Function

Name the 3 types of Structural joints.

Fibrous, Cartilaginous, Synovial

Structure/Composition joints are named this because -

Structure/composition refers to what the joint is made out of

Explain what a fibrous joint is.

<p>Fibrous joints articulate (or attach) to another bone with fibrous connective tissue.</p> Signup and view all the answers

What are some examples of fibrous joints?

<p>Sutures of the skull, interosseous ligaments, teeth, distal tibulofibular joint</p> Signup and view all the answers

Explain what a Cartilaginous joint is.

<p>Cartilaginous joints articulate (or attach) to another bone by cartilage and are reinforced with fibrous tissue.</p> Signup and view all the answers

What are some examples of cartilaginous joints?

<p>Symphysis pubis, 1st rib to sternum, sacral coccygeal joint, fibrocartilage discs</p> Signup and view all the answers

Explain what a Synovial joint is.

<p>Synovial joints are characterized by 2 bones that articulate in a fibrous joint capsule, lined with membrane and surrounded by fluid.</p> Signup and view all the answers

What are some examples of synovial joints?

<p>Elbow, knee, wrist</p> Signup and view all the answers

Action/Function joints are named this because -

<p>Because they function as action levers</p> Signup and view all the answers

Name the 3 types of Action/Functional Joints - Remember SAD.

<p>Synarthrodial (Syn), Amphiarthrodial (Amphi), Diarthrodial (Di)</p> Signup and view all the answers

Why remember SAD when referring to Action/Functional joints?

<p>Because SAD is the order of joint movement - from least movable to most movable</p> Signup and view all the answers

What is a characteristic of a Synarthrodial joint?

<p>No movable joint or joint cavity</p> Signup and view all the answers

What is an example of a Synarthrodial joint?

<p>Teeth, 1st rib to sternum</p> Signup and view all the answers

What is a characteristic of an Amphiarthrodial joint?

<p>Slightly movable joint</p> Signup and view all the answers

What is an example of an Amphiarthrodial joint?

<p>Intervertebral discs, symphysis pubis, S.I. Joint (sacroiliac joint)</p> Signup and view all the answers

What is a characteristic of a Diarthrodial joint?

<p>Synovial joints, freely moving with a joint cavity between the articulation</p> Signup and view all the answers

What is an example of a Diarthrodial joint?

<p>Elbow, knee</p> Signup and view all the answers

Study Notes

Joint Classification Overview

  • Joints classified by two main categories: Structure/Composition and Action/Function.

Structural/Composition Joints

  • Three types include:
    • Fibrous
    • Cartilaginous
    • Synovial

Fibrous Joints

  • Defined as joints connected by fibrous connective tissue.
  • Examples include:
    • Sutures of the skull
    • Interosseous ligaments
    • Teeth
    • Distal tibiofibular joint

Cartilaginous Joints

  • Characterized by connection through cartilage, allowing little or no movement.
  • Examples include:
    • Symphysis pubis
    • 1st rib to sternum
    • Sacral-coccygeal joint
    • Fibrocartilage discs

Synovial Joints

  • Feature a fibrous joint capsule, lined with a membrane and filled with synovial fluid.
  • Articulating bones are capped with cartilage.
  • Examples include:
    • Elbow
    • Knee
    • Wrist

Action/Function Joints

  • Known as action levers, enabling movement.
  • Three types are remembered using the acronym SAD:
    • Synarthrodial (Syn)
    • Amphiarthrodial (Amphi)
    • Diarthrodial (Di)
  • SAD represents the order of mobility from least to most movable.

Synarthrodial Joints

  • Characteristics include:
    • No movement and no joint cavity.
  • Example: Teeth, 1st rib to sternum.

Amphiarthrodial Joints

  • Defined by slight mobility.
  • Example: Intervertebral discs, symphysis pubis, sacroiliac joint.

Diarthrodial Joints

  • Freely moving joints featuring a joint cavity between articulations.
  • Example: Elbow, knee.

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Description

This quiz explores the classification of joints based on structure and function. Learn about the three main types of structural joints: fibrous, cartilaginous, and synovial, as well as their examples. Additionally, understand the functional classification of joints and their roles in movement.

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