ATI LPN
Medical-Surgical Nursing Neurological System Questions
Question 1 of 5
The primary somatosensory cortex, responsible for processing tactile information such as touch and pressure, is located in the:
Correct Answer: B
Rationale: The primary somatosensory cortex, in the parietal lobe’s postcentral gyrus, processes touch. [Level: Knowledge]
Question 2 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 3 of 5
How many pairs of spinal nerves are there in the human spinal cord?
Correct Answer: A
Rationale: Humans have 31 pairs of spinal nerves: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, 1 coccygeal. [Level: Knowledge]
Question 4 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 5 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]