In the axon terminal, which channels open when the action potential arrives?

Which result indicates increased osteoblast activity throughout their lifetime?

Which of the following is associated with osteocytes that helps provide them nourishment ?

During the flat part of the muscle tension curve (bracket), which type of contraction is being generated during that time?  

Sarcomere.  During a concentric contraction, which of the following would shrink?

In the sarcomere, the area that spans the length of the myosin filaments is the

Which describes myofibril structure?

Which part of bone tissue gives bone its marked rigidity and strength?

Identify muscle, red arrow

Which is a false rib?  Rib number ______.