Which cranial nerves are involved in eye movements? Select all that apply.
Trochlear
Optic
Oculomotor
Abducens
Facial
Correct Answer : A,C,D
A) Trochlear: The trochlear nerve (CN IV) is responsible for innervating the superior oblique muscle, which helps control the downward and inward movement of the eye.
B) Optic: The optic nerve (CN II) is primarily involved in vision and visual acuity, not in the movement of the eye. It transmits visual information from the retina to the brain.
C) Oculomotor: The oculomotor nerve (CN III) controls most of the extraocular muscles, including those responsible for eye movement (superior rectus, inferior rectus, medial rectus, and inferior oblique) and also controls pupil constriction.
D) Abducens: The abducens nerve (CN VI) controls the lateral rectus muscle, which is responsible for the outward movement of the eye.
E) Facial: The facial nerve (CN VII) controls the muscles of facial expression and is not involved in eye movements.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A) Instruct the patient on Tripod positioning: Tripod positioning involves the patient sitting or standing with their hands on their knees or a table, which helps in optimizing lung expansion and improving breathing. This position can help clients with COPD ease their breathing by increasing the use of accessory muscles and allowing the diaphragm to work more efficiently.
B) Restrict the client's fluid intake to less than 2 L/day: Restricting fluid intake is generally not recommended for COPD patients unless there are specific signs of fluid retention or other contraindications. Adequate fluid intake is important to keep mucus thin and easier to expel. Restricting fluids may worsen mucus thickness and make it harder to clear secretions.
C) Provide the client with a low-protein diet: COPD patients often need a higher-protein diet to help maintain muscle mass and support overall nutritional status. A low-protein diet would not be appropriate as it could lead to muscle wasting and decreased respiratory muscle strength.
D) Have the client use the early-morning hours for exercise and activity: While physical activity is important, the timing of exercise should be tailored to the client's individual tolerance and condition. Early-morning exercise might not be suitable for all patients, especially if they experience morning respiratory symptoms or have other considerations. The key is to find an optimal time that aligns with the patient's energy levels and condition.
Correct Answer is ["B","C","D"]
Explanation
A) Decreased exercises: This is not a recommended measure for preventing peripheral arterial disease (PAD). Regular physical activity is important in managing PAD and preventing its progression. Exercise helps improve circulation and can alleviate symptoms.
B) Diabetes management: Effective management of diabetes is crucial for preventing PAD. High blood sugar levels can damage blood vessels over time, increasing the risk of PAD. Managing blood glucose levels helps reduce this risk.
C) Smoking cessation: Smoking is a major risk factor for PAD. It contributes to the narrowing and hardening of arteries. Quitting smoking is essential for preventing PAD and improving overall vascular health.
D) Hyperlipidemia control: Managing high cholesterol levels is important in preventing PAD. Elevated lipid levels contribute to the buildup of plaques in arteries, which can lead to PAD. Controlling hyperlipidemia through diet, exercise, and medication can reduce this risk.
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