ATI RN
Questions About the Nervous System Questions
Question 1 of 5
Regarding the speech centres
Correct Answer: D
Rationale: Damage to Broca’s area (frontal lobe) causes motor (expressive) aphasia. It’s typically left-sided regardless of handedness, anterior, and Wernicke’s handles comprehension.
Question 2 of 5
How do neurons communicate with one another?
Correct Answer: D
Rationale: Neurons communicate electrically within the cell (via action potentials) and chemically between cells (via neurotransmitters at synapses). 'Radio-wave-like impulses' is incorrect, so 'A and B' is the accurate choice.
Question 3 of 5
Neuroglial cell that carries on phagocytosis.
Correct Answer: B
Rationale: Microglial cells are neuroglia in the CNS that perform phagocytosis, engulfing debris and pathogens. Cranial nerves are PNS structures, microtubules are cytoskeletal components, and electrical excitability is a neuron property, not a cell type.
Question 4 of 5
A network of billions of neurons and even more neuroglia that is organized into two main divisions: central nervous system (brain and spinal cord) and peripheral nervous system (nerves, ganglia, enteric plexuses, and sensory receptors outside the central nervous system).
Correct Answer: A
Rationale: The nervous system comprises the CNS (brain, spinal cord) and PNS (nerves, ganglia, enteric plexuses, receptors), including neurons and neuroglia. White matter is axons, muscle action potential is specific, and cerebral cortex is part of the CNS.
Question 5 of 5
The 12 pairs of nerves that emerge from the brain and primarily serve the head and neck.
Correct Answer: B
Rationale: Cranial nerves are 12 pairs emerging from the brain, serving head and neck functions. Synapse is a junction, gray matter is CNS tissue, and neuropathy is a disorder.