What cranial nerve is responsible for the taste sensation of the posterior third of the tongue?

Facial

Abducens

Glossopharyngeal

Hypoglossal

Answer and Explanation

The Correct Answer is C

Choice A Reason:
The facial nerve, or cranial nerve VII, is responsible for the taste sensation in the anterior two-thirds of the tongue, not the posterior third. It carries taste sensations from the front part of the tongue via the chorda tympani branch.

Choice B Reason:
The abducens nerve, or cranial nerve VI, has no role in taste sensation. It is primarily involved in controlling the lateral rectus muscle of the eye, which abducts the eye.

Choice C Reason:
The glossopharyngeal nerve, or cranial nerve IX, provides special sensory innervation for taste to the posterior third of the tongue. This enables the sensation of various tastes like salty, sweet, sour, and bitter in this region.

Choice D Reason:
The hypoglossal nerve, or cranial nerve XII, is responsible for motor control of the tongue muscles but does not provide sensory innervation for taste.

Nursing Test Bank

Quiz #1: RN Exams Pharmacology Exams Quiz #2: RN Exams Medical-Surgical Exams Quiz #3: RN Exams Fundamentals Exams Quiz #4: RN Exams Maternal-Newborn Exams Quiz #5: RN Exams Anatomy and Physiology Exams Quiz #6: RN Exams Obstetrics and Pediatrics Exams Quiz #7: RN Exams Fluid and Electrolytes Exams Quiz #8: RN Exams Community Health Exams Quiz #9: RN Exams Promoting Health across the lifespan Exams Quiz #10: RN Exams Multidimensional care Exams

Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Quiz #1: Naxlex RN Comprehensive online practice 2019 B with NGN Quiz #2: Naxlex RN Comprehensive Predictor 2023 Quiz #3: Naxlex RN Comprehensive Predictor 2023 Exit Exam A Quiz #4: Naxlex HESI Exit LPN Exam Quiz #5: Naxlex PN Comprehensive Predictor PN 2020 Quiz #6: Naxlex VATI PN Comprehensive Predictor 2020 Quiz #8: Naxlex PN Comprehensive Predictor 2023 - Exam 1 Quiz #10: Naxlex HESI PN Exit exam Quiz #11: Naxlex HESI PN EXIT Exam 2

Free Nursing Study Resources

Correct Answer is B

Explanation

Choice a reason:
Educational Prevention is not a recognized level of prevention in healthcare. While education is a key component in all levels of prevention, it is not a standalone category. Education is typically included in primary prevention as it involves informing the public about health practices to prevent the onset of disease.

Choice b reason:
Tertiary Prevention is the level of prevention that aims to manage and treat an existing disease to prevent further complications or deterioration. In the case of immobile stroke patients, tertiary prevention would involve measures to prevent skin breakdown and other complications associated with immobility and the stroke's long-term effects.

Choice c reason:
Secondary Prevention involves early detection and prompt intervention to prevent the progression of a disease. For stroke patients, secondary prevention might include monitoring for signs of skin breakdown so that early treatment can be initiated. However, the scenario described focuses on managing an existing condition rather than early detection.

Choice d reason:
Primary Prevention aims to prevent the disease or injury before it occurs. This would involve strategies to prevent strokes in the first place, such as controlling high blood pressure or encouraging healthy lifestyle changes. It does not directly relate to the prevention of skin breakdown in patients who have already had a stroke.

A. Conjunctiva B. Sclera of the eye C. Back of the neck D. Palms of the hands

Correct Answer is B

Explanation

Choice A Reason:
The conjunctiva can sometimes appear yellow in individuals with jaundice; however, it is not the most reliable area to inspect for jaundice. The conjunctiva may be affected by other factors such as environmental irritants or infections, which can alter its appearance.

Choice B Reason:
The sclera of the eye is the most reliable area to inspect for jaundice. The yellowing of the sclera, also known as scleral icterus, is a key indicator of jaundice. The sclera's white background provides a clear contrast, making any yellow discoloration more noticeable. This is particularly true in darker-skinned individuals, where skin changes may be less apparent.

Choice C Reason:
The back of the neck is not a reliable area to inspect for jaundice. Skin pigmentation and lighting can affect the visibility of yellowing, making it an unreliable indicator. Additionally, the back of the neck may have other skin changes unrelated to jaundice that could confuse the assessment.

Choice D Reason:
The palms of the hands are not the most reliable area to inspect for jaundice. While the palms may show yellowing, they are subject to various external factors such as manual labor or exposure to substances that can affect their color. Moreover, the palms' skin may be thicker and less transparent, making subtle changes in color more difficult to detect.

View Question and Answer

Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.

Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today

What cranial nerve is responsible for the taste sensation of the posterior third of the tongue?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse educator is presenting at a continuing education seminar for nurses. As part of his presentation, he is emphasizing the prevention of skin breakdown in immobile patients who have suffered from a stroke. The level of prevention being discussed by the nurse educator is:

Correct Answer is B

Explanation

A nurse is assessing a 64-year-old African-American client who has jaundice. The patient has a past medical history of alcoholism and liver cirrhosis. Which of the following areas is the most reliable for the nurse to inspect for jaundice?

Correct Answer is B

Explanation

A patient is diagnosed with left ear unilateral sensorineural hearing loss. During the performance of the Weber test, the nurse expects lateralization of the sound/vibration to the:

While auscultating a client's 1st and 2nd intercostal spaces, close to the sternal body, the nurse would document these normal breath sounds as which of the following?

A Drug Rehabilitation nurse is conducting the health history. When would be the most natural time to ask the client about alcohol use?

A nurse is assessing a client who has myxedema. Which of the following findings should the nurse expect?

What eye function is the nurse preparing to assess when the client is asked to stand 20 feet from a specific chart that is mounted on the examination room wall?

A nurse is assessing a client who has hypothyroidism. Which of the following findings should the nurse expect?

The nurse knows the importance of assessing vital signs is to:

A nurse is presenting a class about fall prevention to a group of assisted-living residents. Which of the following statements by a resident best indicates an understanding of the teaching?