MLS 100: Human Anatomy and Physiology Activity 8C PDF

MLS 100: Human Anatomy and Physiology with Pathophysiology Activity # 8C THE ARTICULAR SYSTEM PRE-LAB DISCUSSIONS OBJECTIVES a. Examine the microscopic and macroscopic anatomy of the bone. b. Distinguish axial and appendicular skeleton. c. Categorize bones according to shape and de...

MLS 100: Human Anatomy and Physiology with Pathophysiology Activity # 8C THE ARTICULAR SYSTEM PRE-LAB DISCUSSIONS OBJECTIVES a. Examine the microscopic and macroscopic anatomy of the bone. b. Distinguish axial and appendicular skeleton. c. Categorize bones according to shape and describe their surface features. d. Demonstrate the major diarthrotic movements. MLS 100 LAB: Human Anatomy and Physiology with Pathophysiology  THE ARTICULAR SYSTEM deals with joints of the body and the surrounding tissues Components of articular system: ○ Ligaments: band of fibrous tissue that connects 2 bones and provides the attachment for the cartilage ○ fascia ○ muscle JOINTS also called an articulation or arthrosis point of contact between two bones, between bone and cartilage, or between bone and teeth. ARTHROLOGY=scientific study of joints KINESIOLOGY = study of motion of the body MLS 100 LAB: Human Anatomy and Physiology with Pathophysiology STRUCTURAL CLASSIFICATION OF JOINTS BASIS FOR CLASSIFICATION: (1) the presence or absence of a space between the articulating bones, called a synovial cavity, and (2) the type of connective tissue that binds the bones together. TYPES Fibrous joints: no synovial cavity; bones are held together by dense irregular connective tissue that is rich in collagen fibers. Cartilaginous joints: no synovial cavity; bones are held together by cartilage. Synovial joints: There is a synovial cavity; bones are united by the dense irregular connective tissue of an articular capsule, and often by accessory ligaments. MLS 100 LAB: Human Anatomy and Physiology with Pathophysiology FUNCTIONAL CLASSIFICATION OF JOINTS The functional classification of joints relates to the degree of movement they permit. Synarthrosis (syn- = together): An immovable joint. Amphiarthrosis (amphi- = on both sides): A slightly movable joint. Diarthrosis (-sis = movable joint): A freely movable joint. All diarthroses are synovial joints. They have a variety of shapes and permit several different types of movements.