Taking It on the Chin

By Stephanie DeMarco, Caitlyn Woods, Philip J. Stephens

Abstract

In this interrupted case study, students follow the story of Mr. Gower, who must have a root canal. All goes well at the dentist's, but that night Mr. Gower feels tired and light headed. In the morning, his jaw is stiff and he has no appetite. Over the next several days, his health continues to deteriorate. The case presents information describing Mr. Gower’s problems and symptoms, which the students analyze to determine what is wrong. The case was developed for use in an animal physiology course that is taken by sophomore and junior science majors. It could also be used in an anatomy and physiology course.

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Date Posted

05/16/2005

Overview

Objectives

To understand nerve function.
To understand the function of chemical synapses.
To understand the difference between excitatory and inhibitory effects on a postsynaptic cell.
To understand synaptic integation, postsynaptic potentials, threshold, and spike initiation.
To understand the effect of changes in excitatory and inhibitory activity on the postsynaptic response.
To determine how Mr. Gower’s problem can produce the observed response in motor neurons.

Keywords

Nervous system; nerve function; synaptic physiology; chemical synapse; postsynaptic cell; synaptic integation; postsynaptic potential; spike initiation; motor neuron; clostridium tetani; tetanus; lockjaw

Subject Headings

Physiology

EDUCATIONAL LEVEL

High school, Undergraduate lower division, Undergraduate upper division

FORMAT

PDF

TOPICAL AREAS

N/A

LANGUAGE

English

TYPE/METHODS

Interrupted, Jig-Saw

Teaching Notes & Answer Key

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Answer Key

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