ATI RN
Test Questions on Autonomic Nervous System Questions
Question 1 of 5
A regeneration tube in the PNS helps direct further growth of after an injury.
Correct Answer: B
Rationale: In the PNS, Schwann cells form a regeneration tube to guide axon regrowth after injury. Dendrites receive signals, soma is the cell body, and myelin sheath insulates.
Question 2 of 5
A photoreceptor in the eye could be classified into which of the following categories?
Correct Answer: C
Rationale: Photoreceptors (rods, cones) in the eye are sensory receptors, detecting light. Smooth muscle is an effector, somatic nerve controls voluntary muscles, and ganglion is a cell body cluster.
Question 3 of 5
Which of the following controls the 'fight-or-flight' response?
Correct Answer: D
Rationale: The autonomic nervous system (specifically sympathetic division) controls the fight-or-flight response, increasing heart rate and alertness. CNS integrates, spinal cord relays, and cranial nerves serve head.
Question 4 of 5
Hirschsprung's disease is a disorder in which the large intestine has no nerves and cannot function as it should. This is a problem with which of the following parts of the nervous system?
Correct Answer: D
Rationale: Hirschsprung’s disease involves absent enteric nervous system ganglia in the large intestine, impairing motility. Somatic controls voluntary muscles, sympathetic is ANS, and CNS is brain/spinal cord.
Question 5 of 5
The cerebellum and cerebrum are covered by
Correct Answer: B
Rationale: The cerebellum and cerebrum are covered by gray matter (cortex), containing neuronal cell bodies. White matter is internal, neuroglia are supportive cells, and ganglia are PNS.