The axons of the olfactory nerve terminate in the:
a. olfactory epithelium. b. olfactory bulb. c. olfactory tract. d. primary olfactory cortex.
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1
Identify the function of the olfactory nerve, which is responsible for transmitting smell information from the nose to the brain.
Understand that the olfactory nerve is composed of sensory nerve fibers that originate in the olfactory epithelium.
Recognize that these nerve fibers pass through the cribriform plate of the ethmoid bone to reach the brain.
Determine that the first synapse of the olfactory nerve fibers occurs in the olfactory bulb, which is located at the base of the brain.
Conclude that the axons of the olfactory nerve terminate in the olfactory bulb, where they synapse with the next neurons in the olfactory pathway.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Olfactory Nerve
The olfactory nerve, also known as cranial nerve I, is responsible for transmitting sensory information related to smell from the nasal cavity to the brain. It consists of sensory neurons that detect odor molecules and send signals to the olfactory bulb, where initial processing occurs.
The olfactory bulb is a neural structure located at the base of the brain, directly above the nasal cavity. It receives input from the olfactory nerve and processes olfactory information before relaying it to other brain regions, playing a crucial role in the perception of smell.
The olfactory pathway refers to the route that olfactory information takes from the olfactory bulb to various brain areas, including the primary olfactory cortex. This pathway is essential for the interpretation and integration of smell, influencing behaviors and emotional responses.