ATI RN
Nervous System Questions Questions
Question 1 of 5
Which of the following types of cells line the ventricles and spinal cord?
Correct Answer: C
Rationale: Ependymal cells line ventricles and the spinal canal, aiding CSF production/circulation. Astrocytes support, Schwann cells are PNS, oligodendrocytes myelinate.
Question 2 of 5
A preganglionic fiber entering the sympathetic chain cannot:
Correct Answer: C
Rationale: A preganglionic sympathetic fiber must synapse or pass through; it cannot terminate in the chain without synapsing. Options A, B, and D are possible pathways.
Question 3 of 5
The sympathetic system does not:
Correct Answer: C
Rationale: Sympathetic system originates thoracolumbar (T1-L2), mobilizes energy, and dilates bronchi, but bile secretion is primarily parasympathetic (digestion-related).
Question 4 of 5
Which type of receptor is found in the heart?
Correct Answer: B
Rationale: Beta receptors (β₁) in the heart increase rate and force when stimulated by norepinephrine/epinephrine. Alpha receptors are vascular, nicotinic are ganglionic, GABA is CNS.
Question 5 of 5
A cranial nerve that affects eye movement is the:
Correct Answer: C
Rationale: The trochlear nerve (IV) innervates the superior oblique muscle for eye movement. Optic is sensory, trigeminal is facial, hypoglossal is tongue.