Quiz Ch. 8 1.What is one main functions of joints? 2.Name 2 parts of a synovial joint. 3.From what part of the joint capsule is synovial fluid secreted?

Quiz Ch. 8

1. What is one main functions of joints?

2. Name 2 parts of a synovial joint.

3. From what part of the joint capsule is synovial fluid secreted?

4. What are menisci?

5. What are two types of synovial joints?

Chapter 8:Joints of the Skeleton

Introduction

• Joints– 1.– 2.– Functions

• 1.• 2.• 3.• 4

Introduction• Types of Joints (structural classification)

– 1.– 2.– 3.

• Synovial Joints– Diarthrotic, meaning…– Complex– Parts

• 1.• 2.• 3

General Structure of a Synovial Joint

• Articular cartilage– 1.– 2.– 3.

• Joint capsule– 1.– 2. Two layers

• Outer-• Inner-

Fig. 8.7

General Structure of a Synovial Joint

• Ligaments– 1.– 2.– 3.

• Synovial Membrane– 1.– 2.– 3.

General Structure of a Synovial Joint

• Synovial Fluid– 1.– 2.– 3.– Can indicate joint health

• Bloody, with lipids- • Clear- • Cloudy, yellowish- • Crystals-• Cloudy, red tinged, pus-

Fig. 8.7

General Structure of a Synovial Joint

• Menisci– 1.– 2.– 3.

• Bursae– 1.– 2.– 3.

Fig. 8.8

Types of Synovial Joints

• Six major types– Ball and Socket– Condyloid– Gliding– Hinge– Pivot– Saddle

• Classified by shapes and movements

Fig. 8.9

Fig. 8.9

Types of Joint Movements

• Muscles produce movements at synovial joints

• Muscle contracts– Pulls movable end (__________) toward

immovable end (___________)– Movement occurs at joint

Types of Joint Movements

• Flexion

• Extension

• Abduction

• Adductions

Fig. 8.10

Clinical App. 8.2 : Joint Disorders

• Sprains– 1.

• Bursitis– 1.– 2.

• Arthritis– Inflammation of joint– _______ different types– Rheumatoid Arthritis (RA)– Osteoarthritis– Lyme Arthritis

Clinical App. 8.2 : Joint Disorders

Fig. 8A

Life Span Changes

• Synovial Joints – Loss of function begins in ________

• Progresses slowly

– Synovial Fluid…– Joints lose ….– Range of motion, response time affected– Exercise…