ATI RN
Questions About Nervous System Questions
Question 1 of 5
Schwann cells play a crucial role in the process of:
Correct Answer: D
Rationale: Schwann cells aid peripheral nerve regeneration by clearing debris and guiding regrowth. Synaptic transmission is chemical, transport is axonal, neurogenesis is CNS.
Question 2 of 5
The small gap between the presynaptic and postsynaptic neurons is known as the:
Correct Answer: B
Rationale: The synaptic cleft is the gap where neurotransmitters diffuse. Vesicles store, transporters reuptake, receptors bind. (Q37 options incomplete, corrected.)
Question 3 of 5
The lateral ventricles are located within the cerebral hemispheres and are connected to the third ventricle by the:
Correct Answer: A
Rationale: The interventricular foramen connects lateral ventricles to the third. Aqueduct links third to fourth, canal is spinal, magnum is skull exit.
Question 4 of 5
The normal pressure of cerebrospinal fluid within the subarachnoid space is maintained between:
Correct Answer: B
Rationale: Normal CSF pressure is 10-20 mm Hg in adults (supine). Lower is rare, higher indicates pathology.
Question 5 of 5
Bundle of nerve fibers that transmit information between different regions of the cerebral cortex within the same hemisphere is called a:
Correct Answer: C
Rationale: Association tracts connect cortical regions within one hemisphere. Commissures cross, projection tracts go to/from CNS.