DUKE PSY 101 CHAPTER 3: BRAIN, MIND,
AND BEHAVIOR | COMPREHENSIVE EXAM
PREP, PRACTICE QUESTIONS, CORRECT
ANSWERS AND STUDY GUIDE
| GRADED A+ | GUARANTEED SUCCESS
Updated 2026 Questions and Answers
100% Verified Exam Prep
, nerves collection of neurons that carries signals from the body to the brain
motor neuron A neuron that signals to make the body take action
sensory neuron neuron carries information from outside world and within body to brain
interneuron A neuron that connects neurons and interprets, stores, and retrieves information about
world, allowing you to make informed decisions before you act
spinal cord major bundle of nerves encased in your spine that connects your body and your brain
Central Nervous System (CNS) system composed of the brain and spinal cord; information from your body travels to the
brain by way of nerves of your spinal cord
Peripheral nervous system The system is composed of the nerves outside of the brain and spinal cord; it connects
the parts of the body to the brain
Somatic nervous system system allows us to feel external sensations from and control volitional movement of
body
Autonomic nervous system system allows us to feel internal sensations from and controls automatic movements of
the organs, such as heartbeat
sympathetic nervous system The division of the autonomic nervous system that acts on blood vessels, organs, and
glands in ways that prepare the body for action, fight, or flight
parasympathetic nervous system division of autonomic nervous system that returns the body to a resting state by
counteracting actions of the sympathetic system
endocrine system A network of glands that produces and releases hormones into the bloodstream to
regulate the body's activities
hormones blood-borne chemicals that travel through the circulatory system, enabling the brain to
regulate the body's activity
adrenal glands a pair of endocrine glands located on top of the kidneys; they produce a variety of
hormones, including adrenaline and cortisol that are central to a stress response
AND BEHAVIOR | COMPREHENSIVE EXAM
PREP, PRACTICE QUESTIONS, CORRECT
ANSWERS AND STUDY GUIDE
| GRADED A+ | GUARANTEED SUCCESS
Updated 2026 Questions and Answers
100% Verified Exam Prep
, nerves collection of neurons that carries signals from the body to the brain
motor neuron A neuron that signals to make the body take action
sensory neuron neuron carries information from outside world and within body to brain
interneuron A neuron that connects neurons and interprets, stores, and retrieves information about
world, allowing you to make informed decisions before you act
spinal cord major bundle of nerves encased in your spine that connects your body and your brain
Central Nervous System (CNS) system composed of the brain and spinal cord; information from your body travels to the
brain by way of nerves of your spinal cord
Peripheral nervous system The system is composed of the nerves outside of the brain and spinal cord; it connects
the parts of the body to the brain
Somatic nervous system system allows us to feel external sensations from and control volitional movement of
body
Autonomic nervous system system allows us to feel internal sensations from and controls automatic movements of
the organs, such as heartbeat
sympathetic nervous system The division of the autonomic nervous system that acts on blood vessels, organs, and
glands in ways that prepare the body for action, fight, or flight
parasympathetic nervous system division of autonomic nervous system that returns the body to a resting state by
counteracting actions of the sympathetic system
endocrine system A network of glands that produces and releases hormones into the bloodstream to
regulate the body's activities
hormones blood-borne chemicals that travel through the circulatory system, enabling the brain to
regulate the body's activity
adrenal glands a pair of endocrine glands located on top of the kidneys; they produce a variety of
hormones, including adrenaline and cortisol that are central to a stress response
