Physiology and Hygiene for Secondary Schools

by Francis M. Walters

7. Draw diagrams showing the impulse pathways in voluntary and in reflex action.

8. What purposes are served by the sympathetic neurons?

9. Describe the method of control of the circulatory and digestive processes. How do reflex actions protect the body?

[pg 322]10. Compare voluntary and reflex action. In what sense are all the activities of the body reflex?

11. In what sense is walking voluntary? In what sense is it reflex?

12. How does secondary reflex action lessen the work of the nervous system?

13. State the special functions of the nerves, ganglia, spinal cord, bulb, cerebellum, and cerebrum.

14. State the importance of the formation of correct habits.

Fig. 143—Nerve board for demonstrating nerve pathways.