How does the extra cellular matrix of connective tissues contribute to its function?
Pre-Lab Questions
”1. How do banding patterns change when a muscle contracts?”
”2. What is the difference between a muscle organ, a muscle fiber, myofibril and a myofilament? ”3. Outline the molecular mechanism for skeletal muscle contraction. At what point is ATP used and why? ”
”4. Explain why rigor mortis occurs. ”
Experiment 1: Tendons and Ligaments
Post-Lab Questions
”1. Label the arrows in the slide images below based on your observations from the experiment. ”
A- chondrocytes
B- collagen
C- nucleus
D-skeletal muscle fibers
E- nuclei
F- collagen fibers
”2. How does the extra cellular matrix of connective tissues contribute to its function? ”
”3. Why are tendons and ligament tissues difficult to heal? ”
”4. What difference do you see between the tendon – muscle insertion image and the tendon image? ”
”5. What differences do you see between the tendon and ligament sections? ”
