ATI LPN
Medical Surgical Nursing Neurological Disorders Quizlet Questions
Question 1 of 5
In the 4th week after conception, the neural tube develops three swellings. These are:
Correct Answer: D
Rationale: Neural tube swellings: forebrain (prosencephalon), midbrain (mesencephalon), hindbrain (rhombencephalon). [Level: Knowledge]
Question 2 of 5
Pain receptors in the skin are typically classified as which of the following?
Correct Answer: D
Rationale: Pain receptors (nociceptors) are free nerve endings, unencapsulated, and distinct from encapsulated receptors or position sense receptors. TMP13 p. 621
Question 3 of 5
Which ion has the lowest electrochemical driving force in a typical neuron with a resting membrane potential of -65 millivolts?
Correct Answer: A
Rationale: Chloride’s V_eq is -70 mV, so V_DF = -65 - (-70) = +5 mV, the smallest compared to sodium (-127 mV) and potassium (+21 mV). TMP13 pp. 587-588
Question 4 of 5
Stimulation of which brain area can modulate the sensation of pain?
Correct Answer: C
Rationale: The periaqueductal gray area modulates pain via the descending pain suppression system. TMP13 p. 625
Question 5 of 5
Which electrical event is characteristic of inhibitory synaptic interactions?
Correct Answer: A
Rationale: Opening chloride channels causes hyperpolarization, characteristic of inhibition. TMP13 p. 589