Physiology
NAME ________________________________________ HUMAN PHYSIOLOGY BMS 108 First Midterm – Summer 2013 DR. BARRY D. TANOWITZ 1. Put your name at the top and on your Scantron. 2. Answers for questions 1-‐ 50 will be placed on a Scantron (Green strip, 100 questions) – all questions 1 point each. 3. Answers for questions 51-‐71 will be entered on this exam below – points are variable. 1. All of the following are consistent components of a basic di-‐synaptic reflex arc except… a. interneuron d. brain b. afferent neuron e. effector c. receptor 2. All of the following are features of graded potentials except… a. decremental d. occur at dendrites b. sub-‐threshold e. can be inhibitory c. non-‐decremental Identify the following features of the action potential for a typical neuron. Be aware of the sequence of events. C3. What does the value at #1 indicate? B4. What events are occurring during #5? A5. What events are occurring during #3? D6. What does the value at #2 indicate? + + a. Na channels rapidly open, and K channels are closed + + b. Na channels are closed, and K channels are open c. the cell is at its