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Olfactory I Nerve

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Choose a cranial nerve to discuss in detail and describe its function including the origination in the brain, the path it follows through the skull, its innervation (what body part it serves), and whether its function is sensory, motor, or both.

Include unlabeled diagrams of the pathway from the brain through the opening(s) in the skull to the organ(s) it innervates. Label the diagram yourself using textboxes and arrows to identify the region of the brain from which the nerve originates the foramen (or foramina) and cranial bone(s) through which it passes, and the organ(s) that it innervates.

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Solution Summary

Olfactory I nerve is part of the 12 cranial nerve that is part of the peripheral nervous system ( PNS) . Cranial nerve I emerge from the nose and is entirely sensory. It contains axons that conduct nerve impulses for olfaction, which is the sense of smell.

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Please see the attachment for the diagrams of the Olfactory (I) Nerve

Cranial Nerves

Slide 1

12 pair of Cranial Nerve
Part of the Peripheral Nervous system (PNS)
Cranial nerve number indicate the order from anterior to posterior, in which the nerve arise from the brain.

Slide 2
Cranial nerves emerge from the nose ( cranial nerve I), the eye (cranial nerve II) the inner ear (cranial nerve VIII), the brain stem (cranial nerve III-XII), and the spinal cord (cranial nerve XI). Two cranial nerves (cranial nerve I and II) contain only sensory axons and are called sensory nerves. The rest are classified as mixed nerves because they contain axons of both sensory and motor neurons. Cranial nerves III, IV , VI, XI, and XII are mainly motor. Cranial nerves III, VII, IX, and X include both somatic and autonomic motor axons.

Slide 3

Olfactory (I ) Nerve

- sensory nerve
- Olfactory nerve is shortest of the twelve cranial nerve
- contains axons that conduct nerve impulses for olfaction, the sense of smell
- found in the Olfactory epithelium occupies the superior part of nasal cavity, covering inferior surface of cribriform plate and extending down along the superior nasal concha.
- Function of the olfactory nerve is to carry out the sense of smell

Slide 4

- Nerve travels down the olfactory tract where it reaches the olfactory bulb.
- From the olfactory bulb, the olfactory ...

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