- Description
SCI 250 Week 7 Nervous System Lab and Quiz
Complete the Nervous System Lab.
Complete the open-book quiz about the nervous system and associated diseases. The quiz will be provided by your instructor.
Nervous System Lab – Week Seven
Introduction
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.
- How do the meninges and cerebrospinal fluid (CSF) function together in a healthy nervous system; what are their roles?
- What is the blood-brain barrier?
- What normal microflora reside in the nervous system?
PART two: basic structures
Visit Chapter 24 of Microbiology: Principles and Explorations in WileyPlus to 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
- 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 Brain component 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 Cord diagram. Refer to the Spinal Cord diagram of the multimedia piece to label the following structures of a healthy spinal cord.
PART three: investigate and apply
Several different pathogenic bacteria can cause bacterial meningitis, an infection and inflammation of the meninges. Select any form of bacterial meningitis discussed in Ch. 24 of Microbiology: Principles and Explorations, and answer the following:
- Which form of bacterial meningitis did you select and what is its causal agent?
- What symptoms are typical of this form of meningitis?
- Which age group or population is most susceptible to this form of meningitis and do typical activities within that age group have any influence on a person contracting the disease?
SCI250 Week 7 Chapter 24 Nervous System Quiz each question worth .25 point (10 questions x .25 point per question = total 2.5 points
10/10 Correct
Section: Multiple Choice
- Which of the following is associated with serious infection of the meninges?
- Clogging of blood vessels
- Increased pressure within the skull
- Decreased cerebrospinal fluid flow
- Impaired central nervous system function
- All of the above
- Which of the following is a common cause of meningitis in non-immunized young children?
- Streptococcus pneumoniae
- Escherichia coli
- Staphylococcus
- Haemophilus influenzae
- None of the above
- Which of the following bacteria that may cause meningitis is Gram positive and therefore does not cause endotoxin shock in infected individuals?
- Escherichia coli
- Neisseria meningitidis
- Listeria monocytogenes
- Haemophilus influenzae
- None of the above
- An immunofluorescent antibody test (IFAT) has replaced the older test for the presence of inclusions in neurons (Negri bodies) for the detection of infections caused by ________
- Neisseria meningitides.
- Enteroviruses.
- Mumps virus.
- Rabies virus.
- Haemophilus influenzae.
- What viruses most likely cause encephalitis?
- Togaviruses
- Enteroviruses
- Mumps virus
- Rabies virus
- Hepatitis viruses
- What is the only bacterium known to damage peripheral nerves?
- Naegleria fowleri
- Mycobacterium leprae
- Streptococcus pneumoniae
- Neisseria meningitidis
- Haemophilus influenzae
- Preventing African sleeping sickness is nearly impossible because ________
- the trypanosomes change their surface glycoproteins evading the host immune response.
- the tsetse fly has a wide range and eradication is difficult.
- vaccines must target many antigens.
- All of the above
- A and B
- A major difference between infections with prions and other agents is that infections with prions:
- Do not lead to an inflammatory response
- Are not transmissible
- Do not cause an increase in the size of astrocytes
- Are not fatal
- All of the above
- Invades nerves and brain; headache, fever, nausea, partial paralysis, coma, and death ensue unless patient has immunity
- Bacterial meningitis
- Listeriosis
- Rabies
- Encephalitis
- Hansen’s disease
- Tetanus
- Botulism
- Pliomyelitis
- Transmissable spongiform encephalopathies
- Chagas’ disease
- Shrinkage and lysis of neurons of the central nervous system; headache, fever, and sometimes brain necrosis and convulsions
- Bacterial meningitis
- Listeriosis
- Rabies
- Encephalitis
- Hansen’s disease
- Tetanus
- Botulism
- Poliomyelitis
- Transmissable spongiform encephalopathies
- Chagas’ disease