Textbook Question
The major nerve of the cervical plexus that innervates the diaphragm is the
(a) Median nerve
(b) Axillary nerve
(c) Phrenic nerve
(d) Common fibular nerve
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13. The Peripheral Nervous System
Introduction to the Peripheral Nervous System
Problem 16
Textbook Question
List the names of the 12 pairs of cranial nerves. (Hint: use the mnemonic device 'Oh, Once One Takes The Anatomy Final, Very Good Vacations Are Heavenly.' )
Verified step by step guidance1
Understand that the 12 pairs of cranial nerves are traditionally named and numbered I through XII, each with a specific name and function.
Use the mnemonic 'Oh, Once One Takes The Anatomy Final, Very Good Vacations Are Heavenly' to recall the first letter of each cranial nerve in order.
Match each word in the mnemonic to the corresponding cranial nerve name as follows: 'Oh' = Olfactory, 'Once' = Optic, 'One' = Oculomotor, 'Takes' = Trochlear, 'The' = Trigeminal, 'Anatomy' = Abducens, 'Final' = Facial, 'Very' = Vestibulocochlear, 'Good' = Glossopharyngeal, 'Vacations' = Vagus, 'Are' = Accessory, 'Heavenly' = Hypoglossal.
List all 12 cranial nerves in order by their Roman numeral and name: I Olfactory, II Optic, III Oculomotor, IV Trochlear, V Trigeminal, VI Abducens, VII Facial, VIII Vestibulocochlear, IX Glossopharyngeal, X Vagus, XI Accessory, XII Hypoglossal.
Review the list to ensure all nerves are included and correctly matched to the mnemonic for easy memorization.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Cranial Nerves
Cranial nerves are twelve pairs of nerves that emerge directly from the brain, primarily responsible for sensory and motor functions of the head and neck. Each nerve has a specific name and number, reflecting its order and function.
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Mnemonic Devices
Mnemonic devices are memory aids that help recall complex information through patterns, phrases, or acronyms. In this case, the phrase 'Oh, Once One Takes The Anatomy Final, Very Good Vacations Are Heavenly' helps remember the order of the cranial nerves.
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Names and Order of the 12 Cranial Nerves
The 12 cranial nerves are named and numbered in a specific sequence: Olfactory, Optic, Oculomotor, Trochlear, Trigeminal, Abducens, Facial, Vestibulocochlear, Glossopharyngeal, Vagus, Accessory, and Hypoglossal. Knowing their order is essential for identification and study.
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