5 Questions
Which nerve controls muscles in the eye?
Oculomotor nerve
Which nerve conducts sensory impulses from the skin of the face and mucosa of the nose and mouth?
Trigeminal nerve
Which nerve supplies motor fibers for one external eye muscle?
Trochlear nerve
Which nerve forms the optic chiasma by partial crossover of fibers?
Optic nerve
Which nerve runs from the midbrain to the eye?
Oculomotor nerve
Study Notes
Cranial Nerves
- There are 12 pairs of cranial nerves that originate from the brain or brain stem, numbered based on where they emerge (front to back).
- The cranial nerves have three functions: sensory, motor, and both.
Mnemonics for Cranial Nerves
- Oh Oh Oh To Touch And Feel Very Good Velvet Ah Heaven
- Some Says Money Matters But My Brother Says Big Boobs Matter Most
Cranial Nerve I: Olfactory Nerve
- Function: carries impulses for the sense of smell
- Origin: fibers arise from olfactory receptors in the nasal mucosa and synapse with the olfactory bulbs, which send fibers to the olfactory cortex
Cranial Nerve II: Optic Nerve
- Function: carries impulses for vision
- Origin: fibers arise from the retina of the eye and form the optic nerve
Test your knowledge of the cranial nerves with this quiz on the 12 pairs that originate from the brain or brain stem. Learn about their numbering, mnemonics, and functions.
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