ch. 3 details Flashcards
dorsal means
towards the back
ventral means
towards the stomach
______ carry sensory information
entering dorsal roots
_____ carry motor information
exiting ventral roots
neuron cluster outside the CNS is called a ____, and a cluster inside the CNS is called a _____.
gangion
nucleus
many neurons from the ___ matter of the spinal cord send axons to the brain or other parts of the spinal cord through the ___ matter
gray; white
the autonomic nervous system contains neurons that receive info from and send commands to the ______.
heart, intestines, and other organs
the parasympathetic nervous system is also known as the __________ because..
craniosacral system because it consists of the cranial nerves and nerves from the sacral spinal cord
because the parasympathetic ganglia are not linked to one another…
they act more independently than sympathetic ganglia do
the hindbrain is the ___ part of the brain, consisting of the ___________________.
posterior part
consists of medulla, pons, and cerebellum
the roof of the midbrain is called the
tectum
the swellings on each side of the tectum (in the midbrain) are the
superior colliculus and the inferior colliculus
the superior and inferior colliculus are important for
sensory processing :
inferior- hearing
superior- vision
under the tectum (in the midbrain) is the
tegmentum
the __ is the most prominent brain area for mammals and birds
forebrain
the forebrain consists of
two cerebral hemispheres
the outer portion of the forebrain is called the
cerebral cortex
most sensory info goes first to the ____, which processes it and sends output to the cerebral cortex
thalamus
damage to the ___ leads to abnormalities in motivated behaviors
hypothalamus
damage to the ___ impairs movement, as in conditions such as Parkinson’s disease and huntingotns disease
basal ganglia
beyond the role of movement, the basal ganglia is also important for…
gradual learning of skills and habits
the _____ is a key system for arousal, wakefulness, and attention
nucleus basalis