Name the vertebra pictured (be specific).

Professor Morooka works 60 hours a week for 9 months of the year. During this time he longs for a break. When he finally gets a break, he misses the sense of accomplishment he feels when he is working. ________ theory suggests that this is because there is an optimal level of arousal that we all try to maintain.

A brief electrical charge that travels down the axon of a neuron is called the

Extra credit (1pt)     What organ is this?

  What is the specific name for this collection of lymphoid structures?

Describe what an action potential is.  Where on a muscle cell does it occur?  What two ions are involved?

Which of the following is true of bone resorption.

What is the name of the indicated bone? (Hint: with the Maxilla it makes the hard palate)

Muscles that supported endurance-type activities such as running a marathon or maintaining posture are called ____.

What structure is indicated? (Hint: it is the spur of cartilage at the end)