1. Which one of the following lists puts the events belowin the correct order?

1. bipolar cells depolarize

2. glutamate release from thephotoreceptor cell decreases

3. light strikes photoreceptorcells

4. photoreceptor cells aredepolarized

5. photoreceptor cells arehyperpolarized

1,2,3,4,5              b. 2,4,3,5,1         c.3,4,2,5,1          d. 4,3,5,2,1         e. 5,3,4,1,2

1. A sound wave is headed toward your ear. In which orderwould the signal travel through the following structures as ittraveled to the auditory nerve? The structures, in alphabeticalorder are: (1) basilar membrane; (2) ear canal; (3) hair cells; (4)malleus, incus & stapes; (5) oval window; (6) pinna; (7)tympanic membrane
   1. 6, 7, 2, 4, 1, 3, 5
   2. 6, 7, 4, 2, 5, 1, 3
   3. 6, 2, 4, 7, 1, 3, 5
   4. 6, 2, 7, 4, 5, 1, 3
   5. 7, 2, 6, 4, 5, 1, 3
   6. 7, 2, 6, 5, 4, 3, 1

1. The series of membrane channels that surrounds andvirtually covers each myofibril is the
   1. sarcolemma   b. sarcomere     c.sarcosome      d. sarcoplasmicreticulum            e. sarcoplasm
2. How many motor neurons control a typical skeletalmuscle?
   1. zero                      b. exactlyone                   c. a few               d. many
3. What kind of a joint would allow for BOTH flexion andabduction, but not rotation?

a. ball andsocket                 b. condylar         c.hinge               d. pivot