Module 1
1. Module 1
1.15. Page 3
Module 1—The Nervous System
Module 1: Lesson 3 Assignment
In this part of your assignment, you will examine the structure of neural tissue and complete some questions related to function.
Retrieve the copy of the Module 1: Lesson 3 Assignment that you saved to your computer earlier in this lesson. Complete Lab Part 1. Save your completed assignment in your course folder. You will receive instructions about when to submit your assignment to your teacher later in this lesson.
Try This
To enrich your understanding of the structures and their functions, try the Three Major Types of Neurons Drag-and-Drop. Drag each term to the correct area of the table.
Reflex Arcs
Read
To understand how the structures and functions of the neuron are related to the reflex arc, read “The Reflex Arc” on pages 369 and 370 in your textbook. As you read, create a labelled diagram of the neurons and the steps in a reflex arc.
In some sports, you need to be fast. In hockey, for example, the forward has to be faster than the defender in order to score. The goalie has to react quickly to stop the puck. Does the goalie think about how to stop the puck, or does the goalie just do it automatically?
reflex: an inborn, unlearned behaviour that results from the stimulation of a special neural pathway called the reflex arc
In the Module 1 Big Picture, you imagined being introduced to a new student in your school. Do you remember withdrawing your hand because the handshake hurt? After you thought about what happened, you were embarrassed. Some neurons are organized into special neural pathways that allow you to react before you are consciously aware of what is happening. These unlearned, unconscious, and very rapid pathways are called reflex arcs. The resulting behaviour is called a reflex. Do the following lab assignment to understand more about reflex arcs.
Module 1: Lesson 3 Assignment
In this part of the assignment, you will complete a lab studying the reflex arc.
Retrieve the copy of the Module 1: Lesson 3 Assignment that you saved to your computer earlier in this lesson. Complete Lab Part 2. Save your completed assignment in your course folder. You will receive instructions about when to submit your assignment to your teacher later in this lesson.