Exam 8: Movement

 Complex plans for movement are correlated with decreased activity in the premotor cortex.

 Compared with other sensory neurons, such as those that serve mechanoreceptors, Ia sensory fibers are

 Recently there was a terrorist attack and sarin gas was released into a crowd. Given your knowledge of how sarin affects the nervous system, why was this such a horrific attack?

 As you bend your arm up to take a drink, the ________ muscles are active, and when you extend your arm to put the glass down, the ________ muscles are active.

 An athlete with likely potential in Olympic weightlifting would probably have _________ in the quadriceps muscle.

 Golgi tendon organs send information to the spinal cord through Ia sensory fibers.

 Which of the following sequences describes the typical order in which motor units are recruited?

 Intrafusal fibers receive input from

 A person with damage to the right hemisphere motor cortex will experience weakness or paralysis

 Philip was bitten by a black widow spider. It is possible that if exposed to enough, the venom will

 The rubrospinal tract originates in the

 Single-cell recordings during movement indicate that

 Describe the three types of muscles in the human body.

(see Figure 8.11) - The two types of fibers in this figure are the ____________________ fibers indicated by the #1 and the ____________________ fibers indicated by the #4.

 In addition to its involvement with motor disorders, which of the following structures has been implicated in obsessive-compulsive disorder and attention deficit/hyperactivity disorder?

 Recruitment proceeds in a way that ensures that the

 The pontine reticulospinal tract originates in the

 Professor Gallo tells his class that variations in the firing rate of motor neurons so that they meet the need for a certain amount of contraction is called

 The medullary reticulospinal tract originates in the

 Intrafusal muscle fibers