ATI LPN
Medical-Surgical Nursing Neurological System Questions
Question 1 of 5
The fourth ventricle is located between the pons and the cerebellum and is continuous with the central canal of the spinal cord and the:
Correct Answer: D
Rationale: The fourth ventricle connects to the spinal canal and exits via the foramen magnum. [Level: Knowledge]
Question 2 of 5
The Reticular Activation System (RAS) is responsible for:
Correct Answer: A
Rationale: The RAS, part of the reticular formation, maintains wakefulness and sleep cycles. [Level: Knowledge]
Question 3 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 4 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 5 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]