Bios 251 Lab Six

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LAB SIX: Joints and Body Movements This week we are studying joints and articulations. Your assignment is to answer the following questions after completing the lab. This is due by Sunday, end of week, 11:59 P.M. (MT). Submit your assignment to the Dropbox located on the silver tab at the top of the course page. Use the key terms to identify the joints described below (4 points): Key: cartilaginous fibrous synovial synovial typically allows a slight degree of movement fibrous essentially immovable joints hinge include the hip, knee, and elbow joints cartilaginous cartilage connects the bony portions Use the key terms to match the joint subcategories described below (4 points): Key: suture pivot ball and socket condyloid suture joint between most skull bones ball and socket hip joint pivot joint between the axis and atlas condyloid joint between forearm bones and wrist What characteristics do all joint have in common? (3 points) Even though some fibrous joints and some cartilaginous joints do not move, the two main characteristics of joints are to give our skeleton mobility, and to hold it together. Describe the structure and function of the following structures or tissues in relation to a synovial joint. (4 points) Ligament- Ligaments refer to a fibrous tissue that connects bones to other bones. Capsular ligaments are a part of the articular capsule that surrounds synovial joints. They act up as mechanical reinforcements, creating stability when the ligaments join together. Articular cartilage- Articular cartilage is a white smooth tissue that covers the ends of bones in the joints. It enables bones of a joint to easily glide over one another, establishing easy movement. Joints between the bones, knee, elbow, and rib cage are some areas in the body where these cartilages can be found. Cartilaginous and Synovial Joints help

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