ATI LPN
Quizlet Adult Medical Surgical Head Injury Monitoring Neurological Status Questions
Question 1 of 5
Neurons communicate with each other by releasing chemical messengers known as:
Correct Answer: C
Rationale: Neurotransmitters cross synapses to transmit signals. Hormones are systemic, antibodies immune, enzymes catalytic. [Level: Knowledge]
Question 2 of 5
The refractory period following an action potential is important for:
Correct Answer: C
Rationale: The refractory period ensures unidirectional signal travel by preventing immediate re-firing. [Level: Comprehension]
Question 3 of 5
Which synapse is commonly found in the central nervous system and allows for bidirectional communication between neurons?
Correct Answer: B
Rationale: Electrical synapses, common in CNS, allow bidirectional ion flow via gap junctions. [Level: Knowledge]
Question 4 of 5
Microglia are neuroglial cells that function as:
Correct Answer: B
Rationale: Microglia act as phagocytes, clearing debris and pathogens in the CNS. [Level: Knowledge]
Question 5 of 5
The potential space between the dura mater and arachnoid mater, which may contain blood vessels, is the:
Correct Answer: A
Rationale: The subdural space is a potential space between dura and arachnoid, prone to hematomas. [Level: Knowledge]