PATHO EXAM QUESTIONS AND ANSWERS GRADED A+ #18
Which pathway carries sensory information toward the central nervous system (CNS)?
A. Descending
B. Somatic
C. Efferent
D. Ascending - correct answer D; ascending
Which type of axon transmits a nerve impulse at the highest rate?
A. Large myelinated
B. Large nonmyelinated
C. Small nonmyelinated
D. Small myelinated - correct answer A; large myelinated
Which nerves are capable of regeneration?
A. Myelinated nerves in the peripheral nervous system
B. Unmyelinated nerves of the peripheral nervous system
C. Nerves within the brain and spinal cord
D. Peripheral nerves that are cut or severed - correct answer A; myelinated nerves in
the peripheral nervous system
Where is the neurotransmitter, norepinephrine, secreted?
A. Sympathetic postganglion
B. Somatic nervous system
C. Parasympathetic preganglion
D. Parasympathetic postganglion - correct answer A; sympathetic postganglion
Both oligodendroglia and Schwann cells share the ability to do what?
A. Transport nutrients
B. Line the ventricles
C. Form a myelin sheath
D. Remove cellular debris - correct answer C; Form a myelin sheath
, Pricking one's finger with a needle would cause minimal pain, whereas experiencing
abdominal surgery would produce more pain. This distinction is an example of which
pain theory?
A. Gate control theory
B. Intensity theory
C. Pattern theory
D. Specificity theory - correct answer D; Specificity theory
Which pain theory proposes that a balance of impulses conducted from the spinal cord
to the higher centers in the central nervous system (CNS) modulates the transmission
of pain?
A. Gate control theory (GCT)
B. Neuromatrix theory
C. Pattern theory
D. Specificity theory - correct answer A; Gate control theory (GCT)
Which type of nerve fibers transmits pain impulses?
A. A-alpha (Aα) fibers
B. A-delta (Aδ) fibers
C. A-beta (Aβ) fibers
D. B fibers - correct answer B; A-delta (Aδ) fibers
Where are the primary-order pain-transmitting neurons located within the spinal cord?
A. Anterior root ganglia
B. Dorsal root ganglia
C. Lateral root ganglia
D. Medial root ganglia - correct answer B; Dorsal root ganglia
Where is the gate in the gate control theory (GCT) of pain located?
A. Dorsolateral tract of Lissauer
Which pathway carries sensory information toward the central nervous system (CNS)?
A. Descending
B. Somatic
C. Efferent
D. Ascending - correct answer D; ascending
Which type of axon transmits a nerve impulse at the highest rate?
A. Large myelinated
B. Large nonmyelinated
C. Small nonmyelinated
D. Small myelinated - correct answer A; large myelinated
Which nerves are capable of regeneration?
A. Myelinated nerves in the peripheral nervous system
B. Unmyelinated nerves of the peripheral nervous system
C. Nerves within the brain and spinal cord
D. Peripheral nerves that are cut or severed - correct answer A; myelinated nerves in
the peripheral nervous system
Where is the neurotransmitter, norepinephrine, secreted?
A. Sympathetic postganglion
B. Somatic nervous system
C. Parasympathetic preganglion
D. Parasympathetic postganglion - correct answer A; sympathetic postganglion
Both oligodendroglia and Schwann cells share the ability to do what?
A. Transport nutrients
B. Line the ventricles
C. Form a myelin sheath
D. Remove cellular debris - correct answer C; Form a myelin sheath
, Pricking one's finger with a needle would cause minimal pain, whereas experiencing
abdominal surgery would produce more pain. This distinction is an example of which
pain theory?
A. Gate control theory
B. Intensity theory
C. Pattern theory
D. Specificity theory - correct answer D; Specificity theory
Which pain theory proposes that a balance of impulses conducted from the spinal cord
to the higher centers in the central nervous system (CNS) modulates the transmission
of pain?
A. Gate control theory (GCT)
B. Neuromatrix theory
C. Pattern theory
D. Specificity theory - correct answer A; Gate control theory (GCT)
Which type of nerve fibers transmits pain impulses?
A. A-alpha (Aα) fibers
B. A-delta (Aδ) fibers
C. A-beta (Aβ) fibers
D. B fibers - correct answer B; A-delta (Aδ) fibers
Where are the primary-order pain-transmitting neurons located within the spinal cord?
A. Anterior root ganglia
B. Dorsal root ganglia
C. Lateral root ganglia
D. Medial root ganglia - correct answer B; Dorsal root ganglia
Where is the gate in the gate control theory (GCT) of pain located?
A. Dorsolateral tract of Lissauer
