30 Questions
What is the primary function of the Olfactory nerve (CN I)?
Sense of smell
A patient is unable to detect smells. Which of the following terms best describes this condition?
Anosmia
During an examination of the Olfactory nerve, the patient is asked to identify the aroma of a substance. What is the reason for blocking one nostril?
To compare the sense of smell on both sides separately
Which of the following is NOT a possible effect of a lesion on the Olfactory nerve?
Tinnitus
What is the purpose of avoiding strong or noxious smells during the examination of the Olfactory nerve?
To ensure the patient's sense of smell is not overwhelmed
What is the term for distorted odor perception due to a lesion on the Olfactory nerve?
Parosmia
What is the function of the optic nerve?
Vision
A patient with a lesion in the oculomotor nerve may exhibit which of the following symptoms?
Dilated pupil
Which nerve is responsible for transmitting sensory information from the face, including the sensation of touch?
Trigeminal nerve
A patient with a lesion in the trochlear nerve may exhibit which of the following symptoms?
Vertical diplopia
What is the purpose of the confrontation test in the visual field test?
To assess visual field defects
A patient with a lesion in the abducens nerve may exhibit which of the following symptoms?
Horizontal diplopia
What is the primary difference between the procedure for testing nociception and the procedure described earlier?
The type of object used for stimulation
What is the purpose of placing the examining hand beneath the chin during the muscle strength assessment?
To resist the closure of the mouth
What is the role of the ophthalmic nerve in the corneal reflex?
It is the afferent limb of the corneal reflex
What is the typical response of the jaw jerk reflex in individuals with upper motor neuron lesions?
It is pronounced
What type of nerve is the facial nerve?
Mixed nerve
What is the function of the masseter muscle during the trigeminal nerve examination?
To resist the closure of the mouth
Which cranial nerve is responsible for motor innervations of the soft palate and pharynx?
Accessory nerve
What is the function of the autonomic fibers in the vagus nerve?
Inhibiting the heart rate
A patient with a lesion on the vagus nerve may experience which of the following symptoms?
Diminished gag reflex and trouble swallowing
Which nerve supplies the intrinsic and extrinsic muscles of the tongue?
Hypoglossal nerve
A lesion on which nerve can cause hoarseness of voice?
Vagus nerve
What is the function of the spinal part of the accessory nerve?
Supplying the sternomastoid and trapezius muscles
Which muscle is responsible for movements involved in speech and swallowing and is innervated by the glossopharyngeal nerve?
Stylopharyngeus
A patient with a lesion of the cochlear part of the vestibulocochlear nerve is likely to experience which of the following symptoms?
Tinnitus
Which of the following cranial nerves is responsible for supplying the submandibular gland, sublingual gland, and lacrimal gland?
Facial nerve
A patient with a lower motor neuron lesion of the facial nerve is likely to exhibit which of the following characteristics?
Inability to close the eye on the affected side
Which of the following sensory fibers carries impulses for general sensation from the posterior 1/3 of the tongue?
Glossopharyngeal nerve
Which of the following tests is used to assess the vestibular part of the vestibulocochlear nerve?
Caloric test
Test your knowledge of the 12 cranial nerves, including their functions, types, and lesions. Learn about the olfactory nerve, optic nerve, oculomotor nerve, and more. Get ready to explore the world of neuroscience!
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