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Anatomy of the Nervous SystemLab 11
Lab Exercises and Reports 25 and 28 in manualTextbook figures 10.1, 10.3, 11.1, 11.2, 11.5, 11.6, 11.29, 11.32-34
Objectives: To identify the following structures on model, diagrams or slides and to know the functions for the parts listed.
Lab 25 - Nervous Tissue and Nerves Know figures 25.1 and 25.3
Identify on neuron slide:Cell bodyNucleusDendrites-carry impulses to the cell bodyAxons-carry impulses away from the cell bodyNeuroglial cells
Label Fig. 25.1
Complete Lab report 25
Lab 28 - Spinal Cord and Meninges Know 3 meninges-
Dura materArachnoid materSubarachnoid space – cerebrospinal fluidPia materEpidural Space
Figure 11.2, p. 385 in the text.Spinal Cord on Torso:
Conus medullarisCauda equina
Spinal Cord model:Posterior median sulcus
Anterior median fissureCentral canal- contains CSF
Gray matterPosterior hornLateral hornAnterior hornGray commissure
White matterPosterior columns (funiculus)Lateral columnsAnterior columns
Spinal nerveDorsal root-carries sensory impulses into spinal cordDorsal root ganglion-contains sensory neuron cell bodiesVentral root-carries motor impulses away from spinal cord
Label Fig. 28.1 and 28.2Complete report 28
Peripheral NervesOn the Nerve Man model know the following peripheral nerves:
In arm: Radial Ulnar Median
In leg: Sciatic ObturatorFemoral
On torso model and on the nerve model identify:Sympathetic trunkCauda equina
You are also responsible for the microscope slide that shows a cross section of the spinal cord. On it you need to know the central canal, gray matter (unmyelinated), and white matter (myelinated). Found within the central canal is CSF.
LAB 11: Nervous System I
Activity 1: Identify the Parts of a multipolar neuron
Figure 1: Parts of a Neuron
By LadyofHats [Public domain], via Wikimedia Commons. https://upload.wikimedia.org/wikipedia/commons/a/a9/Complete_neuron_cell_diagram_en.svg
axon terminalnucleus
Figure 2a. Cell Body of a Neuron
Figure 2b. Axon of a Neuron
Figure 2: Neuron Model.
dendrites
dendrite
synaptic knob
axon hillock
golgi apparatus
smooth ER
Rough ER(chromatophilic substance)
mitochondrion
axon myelin sheath
Schwann Cell
axon nodes of Ranvierendoneurium
nucleus of Schwann Cell (neurilemma)
myelin sheath
Figure 3. Parts of a multipolar neuron
Figure 5 – spinal cord in torso model.
nucleus
nucleolus
axon hillock
nuclei of neuroglia
cell body
gray commissure
central canal (with CSF)posterior column(funiculus)
conus medularis
cauda equina
posterior median sulcus
cauda equina
posterior median sulcus
posterior horn
gray commissure
dorsal root
dorsal root ganglion
ventral root
Figure 6. CS of spinal cord in a cervical vertebra.
Spinal Cord Model, Cross Section
anterior median fissure
posterior column (funiculus)
lateral column (funiculus)
anterior column (funiculus)
anterior horn
lateral horn
ventral root
dorsal root
dorsal root ganglion
spinal nerve
anterior median fissure
posterior horn
lateral horn
anterior horn
lateral column (funiculus)
anterior column (funiculus)
central canal
gray matter(unmyelinated tissue)
white matter(myelinated tissue)
periosteum of bone
epidural space
dura mater
arachnoid matersubarachnoid space (contains CSF)
pia mater
central canal(filled with CSF)
spinal cord, cross section
Activity 3: Meninges
Spinal Cord with Meninges
Activity 4: Spinal Nerves
radial nerve
median nerve
ulnar nerve
femoral nerve obturator nerve
sciatic nerve
cervical plexus
brachial plexus
lumbosacral plexus
Complete Lab 11 Worksheet
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