ATI RN
Test Questions on Autonomic Nervous System Questions
Question 1 of 5
The following are pyramidal signs except:
Correct Answer: B
Rationale: Pyramidal (upper motor neuron) signs include hypertonia (A), upgoing toe (C, Babinski sign), and absent abdominal reflexes (D). 'Hyprflexion' (B, likely hyperreflexia typo) is not a standard term, but hyperreflexia fits; still, it’s less specific than others. B is the odd one out.
Question 2 of 5
Pyramidal diseases is characterized by:
Correct Answer: C
Rationale: Pyramidal (upper motor neuron) disease causes weakness (C), spasticity, and hyperreflexia, not tremor (A, basal ganglia), wasting (B, lower motor), or hypotonia (D, cerebellar). C is correct.
Question 3 of 5
A 70 year old man suddenly developed loss of consciousness and right sided upper and lower limb weakness. On clinical examination, the following is true:
Correct Answer: D
Rationale: This suggests a left hemispheric stroke (e.g., MCA), causing right-sided weakness and upper motor neuron signs: absent abdominal reflexes (D, correct), exaggerated reflexes on the right (not both, B), and possible left sensory loss (not both, C). Power isn’t lost bilaterally (A). D fits best.
Question 4 of 5
Which lobe of the cerebral cortex is responsible for generating motor commands?
Correct Answer: D
Rationale: The frontal lobe (D) contains the primary motor cortex (Brodmann area 4), responsible for voluntary motor commands. The temporal (A) processes auditory and memory, parietal (B) sensory integration, and occipital (C) vision. D is correct.
Question 5 of 5
What type of glial cell is responsible for filtering blood to produce CSF at the choroid plexus?
Correct Answer: A
Rationale: Ependymal cells (A) in the choroid plexus filter blood to produce cerebrospinal fluid (CSF). Astrocytes (B) support neurons, oligodendrocytes (C) myelinate CNS axons, and Schwann cells (D) myelinate PNS axons. A is correct.