ATI LPN
Medical-Surgical Nursing Neurological System Questions
Question 1 of 5
The basic functional unit of a reflex is the:
Correct Answer: D
Rationale: The reflex arc (receptor to effector) is the functional unit of reflexes. [Level: Knowledge]
Question 2 of 5
The lumbar plexus is associated with spinal nerves from which vertebral levels?
Correct Answer: A
Rationale: The lumbar plexus forms from L1-L4 spinal nerves. [Level: Knowledge]
Question 3 of 5
Postganglionic neurons of the sympathetic nervous system release the neurotransmitter:
Correct Answer: B
Rationale: Sympathetic postganglionic neurons release norepinephrine (except sweat glands: ACh). [Level: Knowledge]
Question 4 of 5
The neurotransmitter deficiency most commonly associated with Alzheimer's disease is a decrease in:
Correct Answer: C
Rationale: Acetylcholine deficiency in the basal forebrain is linked to Alzheimer’s memory loss. [Level: Knowledge]
Question 5 of 5
What are the cells that support and nourish neurons?
Correct Answer: D
Rationale: Neuroglia (glial cells) support and nourish neurons. [Level: Knowledge]