first cranial nerve
Học thuậtThân thiện
Definition
Noun: * Olfactory nerve: The "first cranial nerve" is the collective term for the numerous olfactory filaments (sensory nerve fibers) located in the nasal mucosa. It is responsible for the sense of smell.
Usage
- The term "first cranial nerve" is used in formal, anatomical, and medical contexts to refer specifically to the nerve responsible for transmitting olfactory information from the nose to the brain.
- It is often used interchangeably with "olfactory nerve," though "olfactory nerve" is more common in general usage.
Examples
- Damage to the first cranial nerve can result in a loss of smell, a condition known as anosmia.
- In the anatomy lab, students identified the first cranial nerve as it passed through the cribriform plate of the ethmoid bone.
- The neurologist tested the function of the patient's first cranial nerve by asking them to identify common scents.
Advanced Usage
- Clinical context: The function of the first cranial nerve is routinely assessed during neurological examinations.
- The physician's evaluation included a check of all twelve cranial nerves, starting with the first cranial nerve.
Variants and Related Words
- Olfactory nerve: The most common synonym.
- Cranial Nerve I: The Roman numeral designation used in formal anatomical nomenclature.
- Nervus olfactorius: The Latin term.
Synonyms
- Olfactory nerve
- Cranial Nerve I
Related Phrases / Terms
- Cranial nerves: The set of twelve paired nerves that emerge directly from the brain. The first cranial nerve is the most anterior.
- Olfactory epithelium: The specialized tissue in the nasal cavity containing the sensory neurons of the first cranial nerve.
- Olfactory bulb: The brain structure where the first cranial nerve terminates and synapses.
Noun
- a collective term for numerous olfactory filaments in the nasal mucosa