What is the blood-brain barrier

Nervous System Lab – Week Seven


The nervous system has two components: the central nervous system, which consists of the brain and spinal chord; and the peripheral nervous system, which is composed of nerves. As you learn about the various diseases that affect the nervous system, it is important for you to understand the structures that can be affected by disease. Complete this lab to become familiar with a healthy system and to identify diseases related to the brain, spinal chord, and nerves.

PART ONE: basic functions

Provide brief answers to the following questions to help you get acquainted with the basic functions of a healthy nervous system. Refer to Ch. 24 in Microbiology: Principles and Explorations.
1.     How do the meninges and cerebrospinal fluid (CSF) function together in a healthy nervous system; what are their roles?
2.     What is the blood-brain barrier?
3.     What normal microflora reside in the nervous system?

PART two: basic structures

Visit Chapter 24 of Microbiology: Principles and Explorations in WileyPlusto view an in-depth presentation of a healthy nervous system by completing the following steps:
·      Select the Chapter 24 WileyPlus reading link located on your student Web page.
·      Locate the heading Chapter Review.
·      Select the Anatomy Overview: The Nervous System link.
·      Complete this lab as you explore the Nervous System multimedia piece.
Nervous System: The Brain
Roll over each component of the Nervous System multimedia piece. Click on the brain. Refer to the Braincomponent of the multimedia piece to label the structures in the following diagram of a healthy brain.
Nervous System: The Spinal Cord
Click the icon in the upper left corner of the Brain diagram to return to the main menu in the Nervous System multimedia piece. Click the Spinal Cord component to navigate to the Spinal Corddiagram. Refer to the Spinal Corddiagram of the multimedia piece to label the following structures of a healthy spinal cord.