Principles of Anatomy and Physiology

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Presentation transcript:

Principles of Anatomy and Physiology 14th Edition CHAPTER 9 Joints Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Copyright © 2014 John Wiley & Sons, Inc. All rights reserved. Introduction The purpose of the chapter is to: Introduce the various types of joints in the body Discuss how those joints are classified Learn the types of movements that can be carried out at a joint Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Copyright © 2014 John Wiley & Sons, Inc. All rights reserved. What is a joint? A joint is a point of contact between: Two or more bones Cartilage and bone Teeth and bone Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Classification of Joints Joints can be classified Structurally Is there a joint cavity? What type of connective tissue is involved? Functionally What degree of movement is permitted? Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Classification of Joints Anatomy Overview: Joints You must be connected to the Internet and in Slideshow Mode to run this animation. Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Structural Classification of Joints Fibrous Sutures – dense fibrous CT Ex. Suture Syndesmoses – more dense fibrous CT than a suture Ex. Gomphosis Interosseous membranes – a broad sheet of dense fibrous CT Ex. Between radius and ulna Cartilaginous Synchondrosis – hyaline cartilage; no movement Ex. Epiphyseal plate Symphysis – fibrocartilage; some movement Ex. Pubic symphysis Synovial Articular cartilage on ends of long bones and a synovial cavity between articulating bones surrounded by accessory ligaments; freely moveable Ex. Hip, knee, shoulder, elbow Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Functional Classification of Joints Synarthroses Allow no movement Ex. Suture, gomphosis Amphiarthroses Allow little movement Ex. Pubic symphysis, intervertebral discs Diarthroses Freely moveable Ex. Hip, knee, shoulder, elbow Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Copyright © 2014 John Wiley & Sons, Inc. All rights reserved. Fibrous Joints Lack a synovial cavity Articulating bones are held together with dense fibrous connective tissue Permit little or no movement Types: Sutures Syndesmoses Interosseous membranes Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Examples of Fibrous Joints Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Examples of Fibrous Joints Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Copyright © 2014 John Wiley & Sons, Inc. All rights reserved. Cartilaginous Joints Lack a synovial cavity Articulating bones are held together with cartilage connective tissue Permit little or no movement Types: Synchondroses Symphyses Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Examples of Cartilaginous Joints Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Copyright © 2014 John Wiley & Sons, Inc. All rights reserved. Synovial Joints Have a synovial cavity Articulating bones are covered with articular cartilage, held together by ligaments, contain synovial fluid, have a nerve and blood supply, and are surrounded by an articular capsule Permit a large range of movement Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Structure of a Synovial Joint Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Bursae and Tendon Sheaths Bursae and tendon sheaths can be found at many synovial joints Bursae – sac-like structures filled with synovial fluid that cushion movemnet of one body part over another Tendon sheaths – tube-like bursae that wrap around tendons subject to a great deal of friction Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Types of Movement at Synovial Joints Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Types of Movement at Synovial Joints Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Types of Movement at Synovial Joints Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Types of Movement at Synovial Joints Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Types of Movement at Synovial Joints Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Types of Movement at Synovial Joints Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Types of Movement at Synovial Joints Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Types of Synovial Joints Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Types of Movement at Synovial Joints Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Types of Movement at Synovial Joints Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Factors Affecting Contact and Range of Motion at Synovial Joints Structure and shape of the articulating bones Strength and tautness of the joint ligaments Arrangement and tension of the muscles Contact of soft parts Hormones Disuse Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Selected Joints of the Body Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Temporomandibular Joint Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Temporomandibular Joint Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Temporomandibular Joint Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Copyright © 2014 John Wiley & Sons, Inc. All rights reserved. Shoulder Joint Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Copyright © 2014 John Wiley & Sons, Inc. All rights reserved. Shoulder Joint Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Copyright © 2014 John Wiley & Sons, Inc. All rights reserved. Shoulder Joint Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Copyright © 2014 John Wiley & Sons, Inc. All rights reserved. Shoulder Joint Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Copyright © 2014 John Wiley & Sons, Inc. All rights reserved. Elbow Joint Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Copyright © 2014 John Wiley & Sons, Inc. All rights reserved. Hip Joint Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Copyright © 2014 John Wiley & Sons, Inc. All rights reserved. Hip Joint Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Copyright © 2014 John Wiley & Sons, Inc. All rights reserved. Hip Joint Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Copyright © 2014 John Wiley & Sons, Inc. All rights reserved. Knee Joint Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Copyright © 2014 John Wiley & Sons, Inc. All rights reserved. Knee Joint Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Copyright © 2014 John Wiley & Sons, Inc. All rights reserved. Knee Joint Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Copyright © 2014 John Wiley & Sons, Inc. All rights reserved. Knee Joint Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Copyright © 2014 John Wiley & Sons, Inc. All rights reserved. Aging and Joints As we age, our joints experience: Decreased production of synovial fluid Thinning of articular cartilage Loss of ligament length and flexibility Arthroplasty Joint replacement surgery can be performed to counter some of the effects of aging Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Copyright © 2014 John Wiley & Sons, Inc. All rights reserved. Arthroplasty Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Copyright © 2014 John Wiley & Sons, Inc. All rights reserved. Arthroplasty Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

Copyright © 2014 John Wiley & Sons, Inc. All rights reserved. End of Chapter 9 Copyright 2014 John Wiley & Sons, Inc. All rights reserved. Reproduction or translation of this work beyond that permitted in section 117 of the 1976 United States Copyright Act without express permission of the copyright owner is unlawful. Request for further information should be addressed to the Permission Department, John Wiley & Sons, Inc. The purchaser may make back-up copies for his/her own use only and not for distribution or resale. The Publisher assumes no responsibility for errors, omissions, or damages caused by the use of these programs or from the use of the information herein. Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.