ATI RN
Test Questions on Autonomic Nervous System Questions
Question 1 of 5
Three main components of neurons are
Correct Answer: D
Rationale: Neurons consist of dendrites (receive signals), cell body (soma, with nucleus), and axon (transmits signals). Nucleus is part of the cell body, neurofibrils are internal, and nodes are axon features.
Question 2 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 3 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 4 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.
Question 5 of 5
The nerve that accompanies the submental artery is the
Correct Answer: B
Rationale: The mylohyoid nerve (a branch of the inferior alveolar nerve from CN V3) accompanies the submental artery, supplying the mylohyoid muscle and anterior digastric. The cervical branch of the facial nerve (CN VII) supplies platysma, the transverse cervical nerve (C2-C3) is cutaneous, and the great auricular nerve (C2-C3) innervates the ear.