Chapter 3 The Skeletal System 2009 Delmar Cengage

Chapter 3 The Skeletal System © 2009 Delmar, Cengage Learning

Overview of Structures, Combining Forms, and Functions © 2009 Delmar, Cengage Learning

Bones • Primary Function – Act as the framework for the body – Protect the internal organs – Store the mineral calcium • Related Combining Forms – oss/e, oss/i – oste/o, ost/o © 2009 Delmar, Cengage Learning

Lateral View of Skull © 2009 Delmar, Cengage Learning

Anterior View of Skull © 2009 Delmar, Cengage Learning

Bone Marrow • Primary Functions – Red bone marrow forms some blood cells. – Yellow bone marrow stores fat. • Related Combining Form – myel/o (also means spinal cord) © 2009 Delmar, Cengage Learning

Cartilage • Primary Functions – Creates a smooth surface for motion within the joints. – Protects the ends of the bones. • Related Combining Form – chondr/o © 2009 Delmar, Cengage Learning

Joints • Primary Function – Work with the muscles to make a variety of motions possible. • Related Combining Form – arthr/o © 2009 Delmar, Cengage Learning

Examples of Synovial Joints © 2009 Delmar, Cengage Learning

Synovial Joint © 2009 Delmar, Cengage Learning

Ligaments • Primary Function – Connect one bone to another. • Related Combining Form – ligament/o © 2009 Delmar, Cengage Learning

Synovial Membrane • Primary Functions – Forms the lining of synovial joints. – Secretes synovial fluid. • Related Combining Forms – synovi/o, synov/o © 2009 Delmar, Cengage Learning

Synovial Fluid • Primary Function – Lubricant that makes smooth joint movements possible. • Related Combining Forms – synovi/o, synov/o © 2009 Delmar, Cengage Learning

Bursa • Primary Function – Cushions areas of joints that are subject to friction during movement. • Related Combining Form – burs/o © 2009 Delmar, Cengage Learning