INSTANT
PASS! 2026/2027
Purdue BIOL 203: Exam 3 Questions And
Answers Latest Update 2026
EMAIL ME FOR MORE INFO :
Lecture 15 - Answer
Section A: General Functions and Organization of the Nervous system -
Answer
What is the abbreviation of CNS stand for, and what structures
constitute it? - Answer Central Nervous System; Brain and spinal
cord
,INSTANT
PASS! 2026/2027
What does PNS stand for and which two structures comprise it? -
Answer Peripheral Nervous System; Nerves and Ganglia
What are nerves? Is a nerve fiber the same as an axon? - Answer
Cordlike structures that conduct information; yes they are the same
What are ganglia? And gangloin? - Answer Knotlike swelling in a
nerve where the cell bodies of neurons are concentrated; Ganglion is
the singular term, referring only to one structure.
What does afferent mean? and efferent? - Answer In reference to
CNS, afferent means "towards", efferent means "away"
Sensory information is transmitted from sensory receptors found in
organs to the CNS by afferent or efferent nerve fibers? - Answer
Afferent fibers
What do efferent nerve fibers transmit, sensory or motor info? -
Answer Motor information
,INSTANT
PASS! 2026/2027
What is a mixed nerve? - Answer Those nerves that contain motor
and sensory fibers
Which subdivisions of the PNS (sensory/motor, somatic/visceral) are
involved in transmitting sensory information, such as a painful stimulus
from the skin to the CNS? - Answer Sensory Somatic
Which subdivisions of the PNS are involved in transmitting sensory
information, such as painful stimulus, from organs in the thoracic and
abdominal cavities (heartburn) to the CNS for processing? - Answer
Sensory visceral (recall the concept of viscera)
Which subdivison if the PNS (sensory/motor, somatic/visceral) are
involved in relaying information from CNS to the skeletal muscle for
contracting? - Answer Motor Somatic
Which subdivison if the PNS (sensory/motor, somatic/visceral) are
involved in relaying information from CNS to the cardiac or smooth
muscle for contracting/relaxing? - Answer Visceral Motor
Which subdivison if the PNS (sensory/motor, somatic/visceral) are
involved in relaying information from CNS to the glands to release their
contents (such as enzymes, saliva, pancreatic juice, etc) - Answer
Motor Visceral = autonomic nervous system
, INSTANT
PASS! 2026/2027
Which subdivison if the PNS (sensory/motor, somatic/visceral) are
involved in relaying information from CNS to the autonomic nervous
system? - Answer Motor Visceral
Which subdivison if the PNS (sensory/motor, somatic/visceral) are
responsible for involuntary somatic reflexes involving skeletal muscle
contraction? - Answer Motor somatic
Which PNS subdivision handles (a) sensing a "satiated stomach" after a
meal (b) starting leg muscle contractions for kicking a ball (c) increasing
heart rate (d) controlling bowel movements? - Answer (a) visceral
sensory, (b) somatic motor, (c, d) visceral motor (ANS)
Is it possible to locate nuclei within the PNS? (not cell nuclei) - Answer
Nuclei are structures confined to the CNS
What is a tract? What is the primary differentiating factor between
nerves and tracts, particularly in terms of their locations? - Answer
Bundles of axons in the CNS. The term "nerves" refers to the same
concept but in the PNS
What term represents the equivalent of gnaglia in the CNS? - Answer
Nuclei
PASS! 2026/2027
Purdue BIOL 203: Exam 3 Questions And
Answers Latest Update 2026
EMAIL ME FOR MORE INFO :
Lecture 15 - Answer
Section A: General Functions and Organization of the Nervous system -
Answer
What is the abbreviation of CNS stand for, and what structures
constitute it? - Answer Central Nervous System; Brain and spinal
cord
,INSTANT
PASS! 2026/2027
What does PNS stand for and which two structures comprise it? -
Answer Peripheral Nervous System; Nerves and Ganglia
What are nerves? Is a nerve fiber the same as an axon? - Answer
Cordlike structures that conduct information; yes they are the same
What are ganglia? And gangloin? - Answer Knotlike swelling in a
nerve where the cell bodies of neurons are concentrated; Ganglion is
the singular term, referring only to one structure.
What does afferent mean? and efferent? - Answer In reference to
CNS, afferent means "towards", efferent means "away"
Sensory information is transmitted from sensory receptors found in
organs to the CNS by afferent or efferent nerve fibers? - Answer
Afferent fibers
What do efferent nerve fibers transmit, sensory or motor info? -
Answer Motor information
,INSTANT
PASS! 2026/2027
What is a mixed nerve? - Answer Those nerves that contain motor
and sensory fibers
Which subdivisions of the PNS (sensory/motor, somatic/visceral) are
involved in transmitting sensory information, such as a painful stimulus
from the skin to the CNS? - Answer Sensory Somatic
Which subdivisions of the PNS are involved in transmitting sensory
information, such as painful stimulus, from organs in the thoracic and
abdominal cavities (heartburn) to the CNS for processing? - Answer
Sensory visceral (recall the concept of viscera)
Which subdivison if the PNS (sensory/motor, somatic/visceral) are
involved in relaying information from CNS to the skeletal muscle for
contracting? - Answer Motor Somatic
Which subdivison if the PNS (sensory/motor, somatic/visceral) are
involved in relaying information from CNS to the cardiac or smooth
muscle for contracting/relaxing? - Answer Visceral Motor
Which subdivison if the PNS (sensory/motor, somatic/visceral) are
involved in relaying information from CNS to the glands to release their
contents (such as enzymes, saliva, pancreatic juice, etc) - Answer
Motor Visceral = autonomic nervous system
, INSTANT
PASS! 2026/2027
Which subdivison if the PNS (sensory/motor, somatic/visceral) are
involved in relaying information from CNS to the autonomic nervous
system? - Answer Motor Visceral
Which subdivison if the PNS (sensory/motor, somatic/visceral) are
responsible for involuntary somatic reflexes involving skeletal muscle
contraction? - Answer Motor somatic
Which PNS subdivision handles (a) sensing a "satiated stomach" after a
meal (b) starting leg muscle contractions for kicking a ball (c) increasing
heart rate (d) controlling bowel movements? - Answer (a) visceral
sensory, (b) somatic motor, (c, d) visceral motor (ANS)
Is it possible to locate nuclei within the PNS? (not cell nuclei) - Answer
Nuclei are structures confined to the CNS
What is a tract? What is the primary differentiating factor between
nerves and tracts, particularly in terms of their locations? - Answer
Bundles of axons in the CNS. The term "nerves" refers to the same
concept but in the PNS
What term represents the equivalent of gnaglia in the CNS? - Answer
Nuclei
