Bios105 Lab 4

Nervous and Endocrine System Work Sheet

View the following case studies on the Anatomy and Physiology place website:

Chapter 7 –Nervous System;

Chapter 8- Special Senses

Chapter 9 – Endocrine

Try to answer the questions in the case study and be sure to check the correct answers!  However you will not need to submit your answers to these questions, only the questions on the worksheet ( see below).

Submit your answers as a word document to the Week 4 dropbox

1. Define a reflex and list the components of a reflex arc.

|Reflexes are rapid, predictable, and involuntary responses to stimuli. |

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|The five components of a reflex arc are as follow: |

|Sensory receptor |

|Sensory neuron |

|Integration center |

|Motor neuron |

|Effector |

2. Describe the events of an action potential.

|1. A resting membrane external face has a slightly charge and internal face has a slightly negative charge. |

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|2. A stimulus initiates local depolarization. The polarity of the...