NR546 Advanced Pharmacology
Psychopharmacology for the Psychiatric-
Mental Health Nurse Practitioner OVER 185
Questions and correct answers
What are the functions of Nervous system
1. coordinates our movements using electrochemical signals to control muscle contraction
2. Used to sense the internal and external environment
3. integrates senses to form emotions and sensations
Which nervous system contains fibers?
peripheral nervous system
peripheral nervous system
consists of nerves and associated cells that are not part of the brain or spinal cord
What two parts is the peripheral system divided into?
sensory and motor division
central nervous system function
the control center of the body:
,-relays messages
-processes information
-analyzes information
What makes up central nervous system?
brain and spinal cord
Nerves
neurons bundled together
-some nerves have a few neurons and others may have thousands
afferent fibers
carry sensory signals from receptors to the CNS
where are afferent fibers found?
sensory neurons in the peripheral ganglia
Efferent fibers
carry motor signals from the CNS to effectors (organs)
,How does the nervous system work for skeletal muscles?
1. Afferent fibers (exteroceptors and proprioceptors) from peripheral nervous system pick up
sensory information and send it to central nervous system
2. Interneurons in the brain and spinal cord integrate these signals
3. They then pass a response onto efferent fibers (motor neurons) to trigger a response in
muscles
How does the nervous system work for visceral effectors?
1. afferent fiber (interoceptors) send signal to interneurons in CNS
2. Interneurons analyze the message and send signals to visceral motor neurons in the CNS
3. Preganglionic fiber send signals to postganglionic fibers that then trigger a response in
visceral effectors (smooth muscles, glands, cardiac muscles, adipose tissue)
somatic nervous system
the division of the peripheral nervous system that controls the body's skeletal muscles
visceral nervous system
the portion of the peripheral nervous system composed of a motor division (autonomic nervous
system) and sensory division.
Which fibers are classified as afferent fibers?
interoceptors, exteroceptors, proprioceptors
, What are the effectors of the nervous system?
smooth muscles, glands, cardiac muscle, and adipose tissue
Sensory neurons
carry impulses from sense organs to the spinal cord and brain
What are the sensory neurons?
mechanoreceptors, thermoreceptors, photoreceptors, chemoreceptors, nociceptors,
osmoreceptors
Interneurons (relay)
connect sensory and motor neurons and carry impulses between them
motor neurons
carry impulses from the brain and spinal cord to muscles and glands
What determines what we perceive, think, feel, and do?
As info is relayed from neuron to neuron using electrical and chemical messengers, the volume
of these signals and their routes through the brain determine what we perceive, think, feel, and
do.
Psychopharmacology for the Psychiatric-
Mental Health Nurse Practitioner OVER 185
Questions and correct answers
What are the functions of Nervous system
1. coordinates our movements using electrochemical signals to control muscle contraction
2. Used to sense the internal and external environment
3. integrates senses to form emotions and sensations
Which nervous system contains fibers?
peripheral nervous system
peripheral nervous system
consists of nerves and associated cells that are not part of the brain or spinal cord
What two parts is the peripheral system divided into?
sensory and motor division
central nervous system function
the control center of the body:
,-relays messages
-processes information
-analyzes information
What makes up central nervous system?
brain and spinal cord
Nerves
neurons bundled together
-some nerves have a few neurons and others may have thousands
afferent fibers
carry sensory signals from receptors to the CNS
where are afferent fibers found?
sensory neurons in the peripheral ganglia
Efferent fibers
carry motor signals from the CNS to effectors (organs)
,How does the nervous system work for skeletal muscles?
1. Afferent fibers (exteroceptors and proprioceptors) from peripheral nervous system pick up
sensory information and send it to central nervous system
2. Interneurons in the brain and spinal cord integrate these signals
3. They then pass a response onto efferent fibers (motor neurons) to trigger a response in
muscles
How does the nervous system work for visceral effectors?
1. afferent fiber (interoceptors) send signal to interneurons in CNS
2. Interneurons analyze the message and send signals to visceral motor neurons in the CNS
3. Preganglionic fiber send signals to postganglionic fibers that then trigger a response in
visceral effectors (smooth muscles, glands, cardiac muscles, adipose tissue)
somatic nervous system
the division of the peripheral nervous system that controls the body's skeletal muscles
visceral nervous system
the portion of the peripheral nervous system composed of a motor division (autonomic nervous
system) and sensory division.
Which fibers are classified as afferent fibers?
interoceptors, exteroceptors, proprioceptors
, What are the effectors of the nervous system?
smooth muscles, glands, cardiac muscle, and adipose tissue
Sensory neurons
carry impulses from sense organs to the spinal cord and brain
What are the sensory neurons?
mechanoreceptors, thermoreceptors, photoreceptors, chemoreceptors, nociceptors,
osmoreceptors
Interneurons (relay)
connect sensory and motor neurons and carry impulses between them
motor neurons
carry impulses from the brain and spinal cord to muscles and glands
What determines what we perceive, think, feel, and do?
As info is relayed from neuron to neuron using electrical and chemical messengers, the volume
of these signals and their routes through the brain determine what we perceive, think, feel, and
do.
