ATI RN
ATI Neurological System Questions Questions
Question 1 of 5
What is the role of semaphorins and Eph ligands in development of the nervous system?
Correct Answer: B
Rationale: Semaphorins and Eph ligands act as guidance cues for growing axons. They generally function as repulsive signals, causing growth cones to turn away from inappropriate regions. This ensures precise navigation of axons to their correct targets, which is essential for establishing functional neural circuits.
Question 2 of 5
The nervous system is divided into the ___________.
Correct Answer: C
Rationale: The nervous system is broadly divided into the Central Nervous System (CNS), which includes the brain and spinal cord, and the Peripheral Nervous System (PNS), which includes all neural tissue outside the CNS. This division is fundamental to understanding the organization and function of the nervous system.
Question 3 of 5
The nurse is reviewing the results of a patient's diagnostic tests which show changes in nerve insulation. What structure should the nurse explain to the patient that electrically insulates neurons?
Correct Answer: D
Rationale: The myelin sheath is a phospholipid layer that electrically insulates neurons, allowing for faster transmission of nerve impulses. Astrocytes are a type of neuroglial cell, gray matter contains cell bodies, and interneurons facilitate communication within the central nervous system. The myelin sheath's role in nerve function is critical for understanding neurological disorders.
Question 4 of 5
A patient is scheduled for a lumbar puncture. Which action should the nurse take when preparing this patient?
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
While collecting data the nurse learns that a patient with a neurological illness has not had a sense of smell for several decades. Which part of the central nervous system should the nurse question as being damaged in this patient?
Correct Answer: D
Rationale: The olfactory nerve (cranial nerve I) originates in the temporal lobe, and damage to this area can result in anosmia (loss of smell). The brainstem, occipital lobe, and hypothalamus are not directly involved in the sense of smell. Assessing olfactory function can provide clues about neurological damage.