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BIOS 252 Week 3 Nervous
System-Spinal cord, PNS,
and reflexes with expert
solutions - Chamberlain
College of Nursing
Learning Objectives:
• Locate and identify the regions and parts of the spinal cord.
• Identify the spinal contributions to cervical, brachial, lumbar,
sacral and coccygeal plexuses.
• Locate and identify major peripheral nerves. Identify the
components of a reflex arc.
Introduction: The spinal cord is a continuation from the medulla
oblongata of the brain stem. It allows communication between the brain
and the rest of the body. The spinal nerves contain both sensory and motor
fibers. We will see that multiple spinal cord levels can contribute to the
formation of a peripheral nerve as fibers pass through the various
plexuses. The protective role of a reflex arc will be examined.
Assignment:
Part 1: Complete the following activities
Anatomy.TV: Nervous System- Spinal cord, Spinal nerves, Reflexes
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To access Anatomy.TV: Resources tab>Library>Library Resources-
Database A- Z>Anatomy.TV>Titles(default tab): Choose Nervous
system>choose assigned sections
You will then work through the material and activities by scrolling
down on the right. This will allow you to see and work through all
activities for that section.
Have the lab report with you as you complete the activities so you may record
data.
Part 2: Complete the lab report
Week 3 Nervous System Lab Report
1. Describe the anatomy of the spinal cord by completing the following
chart: (3 points)
# of associated segments/spinal
nerve pairs
Spinal cord 31 pair
Cervical region 8 pairs
Thoracic region 12 pairs
Lumbar region 5 pairs
Sacral region 5 pairs
Coccygeal 1 pair
2. Define the following terms: (1 point each)
Cauda equina – a bundle of spinal nerve roots.
Conus medullaris- The spinal reaches the L1 vertebrae, and it tapers to a
tip known as conus medullaris. An extension of one of the protective
layers of the spinal cord known as the pia mater.
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Email;1
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BIOS 252 Week 3 Nervous
System-Spinal cord, PNS,
and reflexes with expert
solutions - Chamberlain
College of Nursing
Learning Objectives:
• Locate and identify the regions and parts of the spinal cord.
• Identify the spinal contributions to cervical, brachial, lumbar,
sacral and coccygeal plexuses.
• Locate and identify major peripheral nerves. Identify the
components of a reflex arc.
Introduction: The spinal cord is a continuation from the medulla
oblongata of the brain stem. It allows communication between the brain
and the rest of the body. The spinal nerves contain both sensory and motor
fibers. We will see that multiple spinal cord levels can contribute to the
formation of a peripheral nerve as fibers pass through the various
plexuses. The protective role of a reflex arc will be examined.
Assignment:
Part 1: Complete the following activities
Anatomy.TV: Nervous System- Spinal cord, Spinal nerves, Reflexes
For more exams
Email;1
1
, For more exams
Email;2
2
To access Anatomy.TV: Resources tab>Library>Library Resources-
Database A- Z>Anatomy.TV>Titles(default tab): Choose Nervous
system>choose assigned sections
You will then work through the material and activities by scrolling
down on the right. This will allow you to see and work through all
activities for that section.
Have the lab report with you as you complete the activities so you may record
data.
Part 2: Complete the lab report
Week 3 Nervous System Lab Report
1. Describe the anatomy of the spinal cord by completing the following
chart: (3 points)
# of associated segments/spinal
nerve pairs
Spinal cord 31 pair
Cervical region 8 pairs
Thoracic region 12 pairs
Lumbar region 5 pairs
Sacral region 5 pairs
Coccygeal 1 pair
2. Define the following terms: (1 point each)
Cauda equina – a bundle of spinal nerve roots.
Conus medullaris- The spinal reaches the L1 vertebrae, and it tapers to a
tip known as conus medullaris. An extension of one of the protective
layers of the spinal cord known as the pia mater.
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