Exam (elaborations)

A&P 2 102: Module 1 exam - 14 problem sets with questions and answers (scored 90%)

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Course
AIT Nursing (ANATOMYANDPHYSIOLOGYII)

Institution
Thompson River University (TRU )

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Uploaded on February 2, 2021
Number of pages 14
Written in 2020/2021
Type Exam (elaborations)
Contains Questions & answers

anp module 1 exam
peripheral nervous system
nervous system is to integrate
nerve impulses in the peripheral nervous system

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Problem Set 1:

1. The function of the nervous system is to integrate and control the other body systems. Explain how the
nervous system does this.
The nervous system receives and processes information and sends out signals to the muscle and glands to elicit
an appropriate response. In this way the nervous system integrates and controls the other systems of the human
body

2. List the 2 parts of the central nervous system.
brain and spinal cord

3. How are the parts of the central nervous system protected?
the skull protects the braun and the vertebrae protects the spinal cord

4. How do the central nervous system and the peripheral nervous system interact?
the central nervous system can can send signals and impulses from the peripheral system. The peripheral
nervous system includes all nerves not included in the central NS which are the cranial nerves that connect
directly to the brain and spinal cord.

5. What is included in the peripheral nervous system?
The peripheral nervous system includes all nerves not included in the central NS which are the cranial nerves
that connect directly to the brain and spinal cord.

6. What are the 2 divisions of the peripheral nervous system?
The central nervous system can send signals or impulses to and receive impulses from the peripheral nervous
system.

7. Describe the movement of nerve impulses in the peripheral nervous system.
The peripheral nervous system receives impulses from the sensory organs via the afferent division and then
relays signals or impulses from the central nervous system to muscles and glands via the motor or efferent
division.

8. What are the 2 divisions of the efferent division of the peripheral nervous system?
somatic system or autonomic system

9. What is controlled by the somatic and autonomic nervous systems?
The somatic nerves control skeletal muscle, joints, and skin. The autonomic system nerves control the glands
and smooth muscle of the internal organs and generally under conscious control

10. What are the 2 divisions of the autonomic nervous system?
the sympathetic system and parasympathetic system

11. What is the function of the sympathetic nervous system?
activates and prepares the body for vigorous muscular activity, stress, and emergencies

, 12. What is the function of the parasympathetic nervous system?
lowers activity, operates during normal situations, permits digestion, and conserves energy

Problem Set 2:
13. Identify the parts of the neuron shown in the diagram below.

a. dendrite
b. cell body
c. nucleus
d. axon
e. myelin sheath
f. shawann cell
g. node of ranvier
h. axon terminal

14. List 3 unusual characteristics of neurons.
vary in size and shapethey do not undergo mitosis require enormous amounts of fuel

15. List the 3 parts of a neuron.
nucleus dendritesaxon

16. Describe the structure and function of the neuron cell body.
The neuron cell body synthesizes all nerve cell products, consists of a large nucleus with surrounding
cytoplasm containing the normal organelles

17. Describe the structure and function of the dendrite.
numerous short extensions that emanate from the cell body which receives information from other neurons
conducting those nerve impulses toward the body cell.

18. Describe the axon, including the number in each neuron, function, structure and organelles.
The single axon, on the other hand, conducts nerve impulses away from the cell body to its axon terminals
where it is emitted across a synapse to the dendrite of another neuron. Axons can vary in length being as long
as three feet. Axons are composed of cells like the cell body but lack rough endoplasmic reticulum.

19. Describe the composition and function of Schwann cells.
The axon is coated in short sections called Schwann cells which are mainly composed of a white fatty layer
called the myelin sheath rolled around the axon which insulates the nerve fiber from others and increases the
speed of nerve impulses.

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Exam (elaborations)

A&P 2 102: Module 1 exam - 14 problem sets with questions and answers (scored 90%)

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