12.1 – Overview of the Nervous System Flashcards
the brain and spinal cord are components of the ___ nervous system, while the nerves and ganglia are components of the ___ nervous system
central, peripheral
the knoblike swelling in a nerve where neuron cell bodies are found is called a(n) ___
ganglion
which term refers to the part of the PNS that carries signals from various receptors to the CNS?
visceral sensory neurons
the sensory division of the PNS is further subdivided into the ___ sensory division, which carries signals from receptors in the skin, muscles, bones, and joints, and the ___ sensory division, which carries signals from organs of the thoracic and abdominal cavities.
somatic
visceral
the sensory and motor divisions of the peripheral nervous system are further split into which 2 subdivisions?
somatic and visceral
the motor division is also called the ___ division
efferent
what are the 2 major anatomical subdivisions of the nervous system?
central and peripheral nervous systems
the plural form of ganglion is ___
ganglia
taken together, the sensory and motor subdivisions make up which of the following?
peripheral nervous system
the motor division of the PNS is further subdivided into the ___ motor division that carries signals to the skeletal muscles and the ___ motor division (also known as the autonomic nervous system), which carries signals to glands, cardiac muscle, and smooth muscle.
somatic
visceral
which term describes all neurons that carry signals towards the CNS?
afferent