12 pairs olfactory nerves sense of smell
TRANSCRIPT
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Chapter 8.8: Nervous System
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12 pairs Olfactory Nerves Sense of smell
The Cranial Nerves
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Figure 8.25a
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Optic Nerves Visual information from the eyes
Cranial cont..
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Figure 8.25a
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Oculomotor Nerves Muscles that move the eyes Controls the amount of light entering the
eye Controls the shape of the lens
Cranial cont…
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Figure 8.25a
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Trochlear Nerves Moves the eye
Cranial cont…
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Figure 8.25a
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Trigeminal Nerves Chewing
Cranial cont…
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Figure 8.25a
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Abducens Nerves Abducts the eyeball
Cranial cont…
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Figure 8.25a
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Facial Nerves Deep pressure sensations of the face Taste Facial expressions Controls tears and saliva
Cranial cont…
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Figure 8.25a
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Vestibulocochlear Nerve Sensory receptors in inner ear Position, movement and balance Hearing
Cranial cont…
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Figure 8.25a
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Glossopharyngeal Nerves Taste Blood Pressure Swallowing Salivary Glands
Cranial cont…
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Figure 8.25a
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Vagus Nerves Controls soft palate, pharynx and
esophagus Affects cardiac and smooth muscles Affects glands of digestive system
Cranial cont…
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Figure 8.25a
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Accessory Nerves Swallowing Vocal cords and speech
Cranial cont…
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Figure 8.25a
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Hypoglossal Nerves Control over tongue muscles
Cranial cont…
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Figure 8.25a
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Cervical plexus Muscles of neck Controls diaphragm
The Spinal Nerves
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Figure 8.26
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Brachial plexus Shoulder girdle and upper limbs
Spinal cont..
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Figure 8.26
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Lumbar and sacral plexus Pelvic girdle and lower limbs
Spinal cont…
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Figure 8.26