Figure 22.8 showed how an electroscope becomes negatively charged. The leaves will also repel each other if you touch the electroscope with a positively charged glass rod. Use a series of charge diagrams to explain what happens and why the leaves repel each other.
Lecture Objectives 10 1. Define the term joint and understand the relationship between joint structure and degree of mobility Joint is any place where two bones meet. Not all joints have movement. There are different degrees of mobility. Mobility is inversely related to stability. The more movement, the less stable. The more stable the less movement. Different types of connective tissue Connective tissue proper- Fibrous joints Cartilage - cartilaginous joints Combination - synovial joint *injury often is of the connective tissue rather than the bones* Joints are encased in joint capsule or articular capsule which include a fibrous layer surrounding and a synovial membrane. The synovial membrane releases a slippery lubrication that fills the joint cavity (space betwee