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Questions and Answers
Which cranial nerve is responsible for the sense of smell?
Which cranial nerve is responsible for the sense of smell?
- Facial nerve
- Vagus nerve
- Olfactory nerve (correct)
- Optic nerve
Which cranial nerve controls the movement of the eye (up and down)?
Which cranial nerve controls the movement of the eye (up and down)?
- Trochlear nerve (correct)
- Facial nerve
- Oculomotor nerve
- Abducens nerve
Which cranial nerve is purely sensory and responsible for the sense of vision?
Which cranial nerve is purely sensory and responsible for the sense of vision?
- Vestibulocochlear nerve
- Accessory nerve
- Olfactory nerve
- Optic nerve (correct)
Which cranial nerve regulates heart rate, breathing rate, and digestive system activity?
Which cranial nerve regulates heart rate, breathing rate, and digestive system activity?
Which part of the nervous system is responsible for innervating the masseter and temporalis muscles?
Which part of the nervous system is responsible for innervating the masseter and temporalis muscles?
Which cranial nerve is associated with the function of constricting the iris and controlling lens shape?
Which cranial nerve is associated with the function of constricting the iris and controlling lens shape?
Which cranial nerve is associated with the function of innervating muscles of the tongue and pharynx, including the gag reflex?
Which cranial nerve is associated with the function of innervating muscles of the tongue and pharynx, including the gag reflex?
Which cranial nerve is purely sensory and associated with the function of hearing and balance?
Which cranial nerve is purely sensory and associated with the function of hearing and balance?
Which cranial nerve is associated with the function of regulating heart rate, breathing rate, and digestive system activity?
Which cranial nerve is associated with the function of regulating heart rate, breathing rate, and digestive system activity?
Which cranial nerve is associated with the function of sensation of facial areas and innervating the masseter and temporalis muscles?
Which cranial nerve is associated with the function of sensation of facial areas and innervating the masseter and temporalis muscles?
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Study Notes
Cranial Nerves and Their Functions
- The olfactory nerve (CN I) is responsible for the sense of smell.
- The oculomotor nerve (CN III) controls the movement of the eye (up and down).
- The optic nerve (CN II) is purely sensory and responsible for the sense of vision.
- The vagus nerve (CN X) regulates heart rate, breathing rate, and digestive system activity.
- The trigeminal nerve (CN V) is responsible for innervating the masseter and temporalis muscles.
- The oculomotor nerve (CN III) is associated with the function of constricting the iris and controlling lens shape.
- The glossopharyngeal nerve (CN IX) is associated with the function of innervating muscles of the tongue and pharynx, including the gag reflex.
- The vestibulocochlear nerve (CN VIII) is purely sensory and associated with the function of hearing and balance.
- The vagus nerve (CN X) is associated with the function of regulating heart rate, breathing rate, and digestive system activity.
- The trigeminal nerve (CN V) is associated with the function of sensation of facial areas and innervating the masseter and temporalis muscles.
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