PSYC 380 - Quiz 2 (week 3 & 4)
Question and answers verified to pass
2025/2026
Macroanatomy: - correct answer ✔Week 3
Basic functions of the nervous system - correct answer ✔sensory, integrative, and motor
Sensory function - correct answer ✔detect internal stimuli
Integrative function - correct answer ✔sensory integration for analysis and storage
Motor function - correct answer ✔activates effector muscles and glands via cranial and spinal nerves
-results in muscle contractions and glandular secretions
Organization of the nervous system - correct answer ✔
Contents of the Peripheral Nervous System (PNS) - correct answer ✔-cranial nerves on the underside of
the brain
-spinal nerves that connect to the sides of the spinal cord at each vertebra
Subsystems of the PNS - correct answer ✔1. somatic nervous system
2. autonomic nervous system
Somatic NS - correct answer ✔motor and sensory neurons that allow us to sense and react to the
environment
,-voluntary (skeletal muscle)
Autonomic NS (ANS) - correct answer ✔controls smooth muscle, glands, heart, and other organs
-involuntary (smooth muscle, cardiac muscle, stimulation or inhibition of glands)
Two branches of ANS - correct answer ✔1. Sympathetic NS
2. Parasympathetic NS
Sympathetic NS - correct answer ✔-fight/flight, alerting, arousing
-activates the body in ways that help it cope with demands, such as emotional stress and physical
emergencies
-has most of its ganglia in the sympathetic ganglion chain
Parasympathetic NS - correct answer ✔-slows activity of organs, increases digestion, calming
Idea of both.. - correct answer ✔is to create homeostasis
Discussion Question: Can we control our parasympathetic NS? - correct answer ✔Yes - to some level
(within a range)
ex: breathing exercises, meditation, we can lower our heart rate
Central Nervous System (CNS) - correct answer ✔-transmission of information
-anatomical directions
-development
-parts of brain and their function
-protection and injury
,CNS: spinal cord - correct answer ✔-a cable of neurons that carries sensory information to the brain;
and motor commands to the muscles and organs
Where do sensory neurons enter through? - correct answer ✔-the dorsal root
Where do motor axons leave through? - correct answer ✔-the ventral root
What do interneurons do? - correct answer ✔-connect sensory and motor neurons, or/and brain
Reflex path - correct answer ✔sensory neuron --> interneuron --> motor neuron
Types of Nerves - correct answer ✔1. afferent
2. efferent
Afferent - correct answer ✔sensory input from environment to CNS (ascending - going up to the brain)
Efferent - correct answer ✔CNS to effector organ (exiting - body out to the muscles)
CNS Structure and Function: - correct answer ✔1. fibers entering the dorsal root bring sensory
information from sensory receptors
2. fibers leaving the ventral root carry motor information to the muscles
3. collateral branches of sensory neurons may cross to the other side and influence motor neurons there
4. White-matter fiber tracts carry information to and from the brain
Reflex Arch - correct answer ✔the nerve pathway involved in a reflex action including at its simplest a
sensory nerve and a motor nerve with a synapse between.
, Cranial Nerves - correct answer ✔-blood supply
-there are 12 total
(what is affected based on location of injury on spinal cord, higher up --> the worse it gets)
Chart showing all of above together.. - correct answer ✔on back
Discussion Question: How does information get from the environment to the brain? - correct answer
✔afferent neurons
Discussion Question: How does information get from the brain to the body? - correct answer ✔efferent
neurons
Anatomical Orientation - correct answer ✔-3 axes, multiple names
Dorsal (superior) / Ventral (inferior) - correct answer ✔top...bottom
Rostral (anterior) / Caudal (posterior) - correct answer ✔front...back
Medial (proximal) / Lateral (distal) - correct answer ✔inside (midline of body)...outside (beyond the
midline)
View: - correct answer ✔
Planes of Section (directions relative to other structures) Anatomical Planes - correct answer ✔-coronal
(L/M and D/V)
-Sagittal (A/P and D/V)
Question and answers verified to pass
2025/2026
Macroanatomy: - correct answer ✔Week 3
Basic functions of the nervous system - correct answer ✔sensory, integrative, and motor
Sensory function - correct answer ✔detect internal stimuli
Integrative function - correct answer ✔sensory integration for analysis and storage
Motor function - correct answer ✔activates effector muscles and glands via cranial and spinal nerves
-results in muscle contractions and glandular secretions
Organization of the nervous system - correct answer ✔
Contents of the Peripheral Nervous System (PNS) - correct answer ✔-cranial nerves on the underside of
the brain
-spinal nerves that connect to the sides of the spinal cord at each vertebra
Subsystems of the PNS - correct answer ✔1. somatic nervous system
2. autonomic nervous system
Somatic NS - correct answer ✔motor and sensory neurons that allow us to sense and react to the
environment
,-voluntary (skeletal muscle)
Autonomic NS (ANS) - correct answer ✔controls smooth muscle, glands, heart, and other organs
-involuntary (smooth muscle, cardiac muscle, stimulation or inhibition of glands)
Two branches of ANS - correct answer ✔1. Sympathetic NS
2. Parasympathetic NS
Sympathetic NS - correct answer ✔-fight/flight, alerting, arousing
-activates the body in ways that help it cope with demands, such as emotional stress and physical
emergencies
-has most of its ganglia in the sympathetic ganglion chain
Parasympathetic NS - correct answer ✔-slows activity of organs, increases digestion, calming
Idea of both.. - correct answer ✔is to create homeostasis
Discussion Question: Can we control our parasympathetic NS? - correct answer ✔Yes - to some level
(within a range)
ex: breathing exercises, meditation, we can lower our heart rate
Central Nervous System (CNS) - correct answer ✔-transmission of information
-anatomical directions
-development
-parts of brain and their function
-protection and injury
,CNS: spinal cord - correct answer ✔-a cable of neurons that carries sensory information to the brain;
and motor commands to the muscles and organs
Where do sensory neurons enter through? - correct answer ✔-the dorsal root
Where do motor axons leave through? - correct answer ✔-the ventral root
What do interneurons do? - correct answer ✔-connect sensory and motor neurons, or/and brain
Reflex path - correct answer ✔sensory neuron --> interneuron --> motor neuron
Types of Nerves - correct answer ✔1. afferent
2. efferent
Afferent - correct answer ✔sensory input from environment to CNS (ascending - going up to the brain)
Efferent - correct answer ✔CNS to effector organ (exiting - body out to the muscles)
CNS Structure and Function: - correct answer ✔1. fibers entering the dorsal root bring sensory
information from sensory receptors
2. fibers leaving the ventral root carry motor information to the muscles
3. collateral branches of sensory neurons may cross to the other side and influence motor neurons there
4. White-matter fiber tracts carry information to and from the brain
Reflex Arch - correct answer ✔the nerve pathway involved in a reflex action including at its simplest a
sensory nerve and a motor nerve with a synapse between.
, Cranial Nerves - correct answer ✔-blood supply
-there are 12 total
(what is affected based on location of injury on spinal cord, higher up --> the worse it gets)
Chart showing all of above together.. - correct answer ✔on back
Discussion Question: How does information get from the environment to the brain? - correct answer
✔afferent neurons
Discussion Question: How does information get from the brain to the body? - correct answer ✔efferent
neurons
Anatomical Orientation - correct answer ✔-3 axes, multiple names
Dorsal (superior) / Ventral (inferior) - correct answer ✔top...bottom
Rostral (anterior) / Caudal (posterior) - correct answer ✔front...back
Medial (proximal) / Lateral (distal) - correct answer ✔inside (midline of body)...outside (beyond the
midline)
View: - correct answer ✔
Planes of Section (directions relative to other structures) Anatomical Planes - correct answer ✔-coronal
(L/M and D/V)
-Sagittal (A/P and D/V)
