The sympathetic chain ganglia are part of the

ATI LPN

ATI LPN Test Bank

The sympathetic chain ganglia are part of the:

A. Preganglionic neurons B. Postganglionic neurons C. Sympathetic trunk D. Parasympathetic nervous system

Correct Answer: C

Rationale: The sympathetic chain ganglia form the sympathetic trunk, housing postganglionic neurons. [Level: Knowledge]

The myelin sheath around axons in the CNS is formed by ______:

A. Schwann cells B. neurons C. oligodendrocytes D. none of the above

Correct Answer: C

Rationale: Oligodendrocytes myelinate CNS axons; Schwann cells do so in the PNS. [Level: Knowledge]

Cerebrospinal fluid is found in which of the following areas?

A. brain ventricles B. subarachnoid spaces of the brain and spinal cord C. central canal of the cord D. It is found in all of these areas

Correct Answer: D

Rationale: CSF flows through ventricles, subarachnoid space, and central canal. [Level: Knowledge]

The primary motor area is where commands to _____ begin:

A. cardiac muscle B. skeletal muscles C. smooth muscle D. skin

Correct Answer: B

Rationale: The primary motor cortex controls voluntary skeletal muscle movement. [Level: Knowledge]

Which of the following is NOT a component of the brainstem?

A. diencephalon B. pons C. medulla oblongata D. midbrain

Correct Answer: A

Rationale: Brainstem includes midbrain, pons, medulla; diencephalon is separate. [Level: Knowledge]

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