Anne Has Difficulty Moving Her Arm When It Is Stimulated

question 187

Multiple Choice

Anne has difficulty moving her arm when it is stimulated.Specifically,the brain receives the stimulation,and it and the spinal cord are functioning normally.Which type of neuron is probably affected?

• A)sensory neurons
• B)motor neurons
• C)interneurons
• D)Purkinje cells

---

Definitions:

Epiglottis

Plate of elastic cartilage covered with mucous membrane; serves as a valve over the glottis of the larynx during swallowing.

Larynx

The voice box; a structure in the throat containing the vocal cords, responsible for producing sound and protecting the airway during swallowing.

Cardiac Sphincter

A muscular valve located between the esophagus and the stomach, preventing acid reflux from the stomach back into the esophagus.

Pyloric Sphincter

Thickening of the circular layer of the gastric musculature encircling the junction between the stomach and duodenum; also called pylorus.