A client is clenching the jaw closed to avoid taking a prescribed oral medication. The nurse can use this observation to confirm the client is demonstrating motor function of which cranial nerve?
Glossopharyngeal
Trigeminal
Vagus
Facial
The Correct Answer is B
A. The glossopharyngeal nerve is involved in several functions, including taste sensation on the posterior third of the tongue, salivation, and the sensation of the pharynx. It also plays a role in swallowing and gag reflex. However, it is not responsible for the movement of the jaw or clenching of the jaw.
B. The trigeminal nerve is responsible for sensation in the face and also controls the muscles of mastication (chewing). It has both sensory and motor functions. The motor branches of the trigeminal nerve, specifically the mandibular division, innervate the muscles that allow for jaw movement, including clenching.
C. The vagus nerve has a broad range of functions, including regulating heart rate, digestive tract motility, and some aspects of speech and swallowing. It does not control jaw movement or clenching, so it is not relevant to this observation.
D. The facial nerve controls the muscles of facial expression, including movements like smiling, frowning, and closing the eyes. It is not involved in the motor control of the jaw or clenching actions.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. The obturator sign is used to assess for appendicitis, not meningitis. To perform this test, the patient’s right knee is flexed to 90 degrees, and the nurse rotates the hip internally and externally. Pain during this maneuver can indicate irritation of the obturator muscle, which is associated with inflammation of the appendix.
B. The Brudzinski sign is a clinical test used to assess meningeal irritation. When the patient’s neck is passively flexed while lying supine, a positive Brudzinski sign is indicated if the patient involuntarily flexes their knees and hips in response to neck pain. This sign is often seen in meningitis as a result of irritation of the meninges.
C. The Phalen sign is used to diagnose carpal tunnel syndrome. The patient flexes their wrists and holds the position for a period of time to see if symptoms of numbness or tingling appear in the fingers, which would indicate median nerve compression at the wrist. This sign is unrelated to meningitis.
D. The Tinel sign is also used to diagnose carpal tunnel syndrome and other peripheral nerve issues. It involves tapping on the nerve (such as the median nerve at the wrist) to see if it causes tingling or a “pins and needles” sensation along the nerve’s distribution. Like the Phalen sign, it is not related to meningitis.
Correct Answer is A
Explanation
A. Expressive aphasia (also known as Broca’s aphasia) is a condition where the individual has difficulty producing speech or writing, despite having relatively intact comprehension and awareness of their
communication difficulties. This condition often results from damage to Broca’s area in the left frontal lobe of the brain
B. Aphonia refers to the loss of voice or the inability to produce vocal sounds. It is typically associated with a physical issue affecting the vocal cords or larynx, such as vocal cord paralysis or severe laryngitis. Aphonia does not necessarily affect comprehension or the ability to understand speech, but rather the ability to produce sound.
C. Receptive aphasia (also known as Wernicke’s aphasia) is characterized by difficulty understanding or processing language, despite fluent speech production. Individuals with receptive aphasia often speak in long sentences that lack meaning or include incorrect or nonsensical words, and they have impaired comprehension
D. Dysphonia refers to difficulty in producing speech due to issues with the voice, such as hoarseness or discomfort, often related to vocal cord problems. While it affects the quality of the voice, it does not necessarily impact the ability to understand language or produce speech in a meaningful way. Dysphonia is not the correct choice for the scenario described.
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