Lab 13
Nervous System III
Laboratory Objectives
Compare the location of first, second, and third order sensory neurons.
Define the components of the stretch reflex (monosynaptic reflex) and recognize its
component parts.
Name the components of an autonomic reflex arc.
Specify important features of motor and sensory systems.
Review material on somatic reflex arcs, and describe how motor and sensory
components of the arc are arranged.
List the special senses. Name the important features of each of the special senses,
including the sensory end-organ, the processing of information in the end-organ, and
the pathways for sensory information to the brain.
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Activity 1: Somatic Pathways
Navigation: WileyPlus > Read, Study, & Practice > Lab Exercise 19: Somatic Reflexes > Do >
Visual Anatomy > Sensory, Motor, and Integrative Systems > Illustrative Anatomy >
Somatic Sensory Pathways, Posterior Pathway
Navigation: WileyPlus > Read, Study, & Practice > Lab Exercise 19: Somatic Reflexes > Do >
Visual Anatomy > Sensory, Motor, and Integrative Systems > Illustrative Anatomy >
Somatic Sensory Pathways, Anterolateral Pathway
1. Compare the locations of first, second, and third order neurons.
2. Compare the location of cross-over for posterior and anterolateral pathways.
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Activity 2: Assemble an Arc and the Stretch Reflex
Navigation: WileyPlus > Read, Study, & Practice > Lab Exercise 19: Somatic Reflexes > Do >
Interactive Exercise: Assemble an Arc.
1. Compare a monosynaptic and polysynaptic reflex.
2. Where is the cell body of a sensory neuron located?
3. Where does an association neuron synapse with a sensory and motor neuron? Be
specific.
Navigation: WileyPlus > Read, Study, & Practice > Lab Exercise 19: Somatic Reflexes > Do >
Interactive Exercise: Stretch Reflex
4. What structure is the control center for a monosynaptic reflex?
5. In a spinal reflex, where is the cell body of a somatic motor neuron located?
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Activity 3: Vision
Navigation: WileyPlus > Read, Study, & Practice > Lab Exercise 24: Special Senses > Do >
Activity 1: Accessory Structures of the Eye
Navigation: WileyPlus > Read, Study, & Practice > Lab Exercise 24: Special Senses > Do >
Visual Anatomy > Special Senses > Illustrated Anatomy > Right Eyeball, Transverse Section
Navigation: WileyPlus > Read, Study, & Practice > Lab Exercise 24: Special Senses > Do >
Activity 3: Anterior and Posterior Cavities of the Eyeball
Navigation: WileyPlus > Read, Study, & Practice > Lab Exercise 24: Special Senses > Do >
Activity 5: Anatomy of the Retina
1. Trace the path of light waves from the cornea to the retina. Be specific.
2. Trace the path of aqueous humor flow. Be specific.
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Activity 4: Auditory
Navigation: WileyPlus > Read, Study, & Practice > Lab Exercise 24: Special Senses > Do >
Visual Anatomy > Special Senses > Illustrated Anatomy > Structure of the Ear, Frontal
Section
Navigation: WileyPlus > Read, Study, & Practice > Lab Exercise 24: Special Senses > Do >
Activity 9: Anatomy of the Internal Ear
Navigation: WileyPlus > Read, Study, & Practice > Lab Exercise 24: Special Senses > Do >
Activity 11: Microscopic Anatomy of the Macula and Crista
1. Trace waves of sound through the external, middle, and internal ear. Be specific.
2. Compare the structure and function of the maculae and cristi in the inner ear.
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Activity 5 Olfaction and Gustation
Navigation: WileyPlus > Read, Study, & Practice > Lab Exercise 24: Special Senses > Do >
Activity 13: Olfactory Structures
Navigation: WileyPlus > Read, Study, & Practice > Lab Exercise 24: Special Senses > Do >
Activity 14: Gustatory Structures
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