PrepU Ch. 36- Introduction to the Nervous System.docx

PrepU Ch. 36- Introduction to the Nervous System.docx - To...

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To evaluate a client's cerebellar function, a nurse should ask: "Do you have any problems with balance?" Explanation: To evaluate cerebellar function, the nurse should ask the client about problems with balance and coordination. The nurse asks about difficulty speaking or swallowing to assess the functions of cranial nerves IX, X, and XII. Questions about muscle strength help her evaluate the client's motor system. Which is a sympathetic effect of the nervous system? Dilated pupils Explanation: Dilated pupils are a sympathetic effect of the nervous system, whereas constricted pupils are a parasympathetic effect. Decreased blood pressure is a parasympathetic effect, whereas increased blood pressure is a sympathetic effect. Increased peristalsis is a parasympathetic effect, but decreased peristalsis is a sympathetic effect. Decreased respiratory rate is a parasympathetic effect, and increased respiratory rate is a sympathetic effect. The brain is a complex structure and is divided into three parts: the cerebrum, the cerebellum, and the brain stem. The brain stem consists of the midbrain, pons, and medulla oblongata. Which part of the brain contains regulatory centers for heartbeat, vasomotor activity, and breathing? medulla oblongata Explanation: The medulla oblongata contains vital centers concerned with respiration, heartbeat, and vasomotor activity (the control of smooth muscle activity in blood vessel walls). A client has undergone a lumbar puncture for a neurological assessment. The client is put under the post-procedure care of a nurse. Which important post-procedure nursing interventions should be performed to ensure maximum comfort for the client? Select all that apply. Position the client flat for at least three hours or as directed by the physician. Encourage a liberal fluid intake for the client. Explanation:
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The nurse should encourage the client to take liberal fluids and inspect the injection site for swelling or hematoma. A patient is being tested for a gag reflex. When the nurse places the tongue blade to the back of the throat, there is no response elicited. What dysfunction does the nurse determine the patient has? Dysfunction of the vagus nerve Explanation: The vagus nerve (cranial nerve X) controls the gag reflex and is tested by depressing the posterior tongue with a tongue blade. An absent gag reflex is a significant finding, indicating dysfunction of this nerve. Which cerebral lobe contains the auditory receptive areas? Temporal Explanation: The temporal lobe plays the most dominant role of any area of the cortex in cerebration. The frontal lobe, the largest lobe, controls concentration, abstract thought, information storage or memory, and motor function. The parietal lobe contains the primary sensory cortex, which analyzes sensory information and relays interpretation to the thalamus and other cortical areas. The occipital lobe is responsible for visual interpretation.
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  • Summer '17
  • Sharon Collins
  • occipital lobe

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