1. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Human Anatomy & Physiology SEVENTH EDITION Elaine N. Marieb Katja Hoehn Active Lecture Questions prepared by Cinnamon VanPutte, Southwestern Illinois College C H A P T E R 13 The Peripheral Nervous System and Reflex Activity

2. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings An intensely painful stimulus is distinguished from a mildly painful one by a. a higher frequency of action potentials initiated. b. higher magnitude action potentials generated. c. an increased number of receptors stimulated. d. all of the above

3. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Which cranial nerve is the exception and travels to the thoracic and abdominal cavities? a. trochlear b. trigeminal c. vestibulocochlear d. vagus

4. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings The dorsal roots along the spinal cord contain _______ neurons, while the dorsal rami contain ________ neurons. a. motor… motor b. sensory… mixed c. sensory… motor d. motor… mixed

5. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Predict the outcome of damage to one cord of the left brachial plexus. a. only a portion of the left limb will suffer reduced function b. the entire left limb will be paralyzed c. the entire right limb will be paralyzed d. only a portion of the right limb will suffer reduced function

6. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings If irritated, this nerve will cause hiccups. a. cervical plexus b. cutaneous nerve c. phrenic nerve d. lesser occipital nerve

7. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Which of the following structures is the true “funny bone” that results in tingling of the forearm when struck? a. trochlea of ulna b. ulnar nerve c. elbow d. median nerve

8. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings The ________ nerve is the longest and thickest in the body. a. tibial b. common fibular c. sciatic d. pudendal