This chapter examines the final arm of the PNS: the autonomic nervous system, or ANS. Herewe explore how the divisions of the ANS work with the CNS and the endocrine system tomaintain homeostasis in other body systems.What Do You Already Know?Try to answer the following questions before proceeding to the next section. If you’re unsureof the correct answers, give it your best attempt based on pre
...[Show More]
This chapter examines the final arm of the PNS: the autonomic nervous system, or ANS. Here
we explore how the divisions of the ANS work with the CNS and the endocrine system to
maintain homeostasis in other body systems.
What Do You Already Know?
Try to answer the following questions before proceeding to the next section. If you’re unsure
of the correct answers, give it your best attempt based on previous courses, previous chapters,
or just your general knowledge.
• What are the two divisions of the ANS?
The sympathetic and parasympathetic nervous systems
• What is an “adrenaline rush”?
Much norepinephrine and epinephrine pumped into your system causing superness.
• Why does your heart pound when you are nervous?
Because your sympathetic nervous system is dominant pumping speed up neurotransmitters into your blood stream.
Module 14.1: Overview of the Autonomic Nervous System
Module 14.1 in your text introduces you to the divisions of the ANS and compares the somatic
and autonomic nervous systems. By the end of the module, you should be able to do the
following:
1. Describe the structural and functional details of sensory and motor (autonomic)
components of visceral reflex arcs.
2. Distinguish between the target cells of the somatic and autonomic nervous systems.
3. Contrast the cellular components of the somatic and autonomic motor pathways.
4. Discuss the physiological roles of each division of the autonomic nervous system.
Build Your Own Glossary
Following is a table listing key terms from Module 14.1. Before you read the module, use the
glossary at the back of your book or look through the module to define the following terms.
[Show Less]
-preview.jpeg)
-preview.jpeg)
-preview.jpeg)
