PSYC 4034 EXAM 1 LSU QUESTIONS
AND ANSWERS
cerebral cortex - Correct Answers -The outermost layer of the brain
frontal, parietal, occipital, and temporal - Correct Answers -4 lobes of the cortex (F-
POT)
neurons - Correct Answers -basic units of communication in the nervous system. AKA:
nerve cells
sympathetic division - Correct Answers -the portion of the autonomic nervous system
that controls functions that accompany arousal and expenditure of energy
sympathetic ganglia - Correct Answers -nodules that contain synapses between
preganglionic and postganglionic neurons of the sympathetic nervous system
sympathetic ganglion chain - Correct Answers -one of a pair of groups of sympathetic
ganglia that lie ventrolateral to the vertebral column
preganglionic neorn - Correct Answers -efferent neuron of the ANS whose cell body is
located in a cranial nerve nucleus or in the intermediate horn of the spinal gray matter
and whose terminal buttons synapse upon postganglionc neurons in the autonomic
ganglia
central nervous system - Correct Answers -the brain and spinal cord. AKA: CNS
peripheral nervous system - Correct Answers -the part of the nervous system outside
the brain and spinal cord, including the nerves attached to the brain and spinal cord.
AKA: PNS
sensory neuron - Correct Answers -a neuron that detects changes in the external or
internal environment and sends information abt these changes to the CNS
, motor neuron - Correct Answers -a neuron located within the CNS that controls the
contraction of a muscle or the secretion of a gland
interneuron - Correct Answers -a neuron located entirely within the CNS
soma - Correct Answers -the cell body of a neuron, which contains the nucleus
dendrite - Correct Answers -a branched, treelike structure attached to the soma of a
neuron' receives info from the terminal buttons of other neurons
synapse - Correct Answers -a junction between the terminal button of an axon and the
membrane of another neuron
axon - Correct Answers -the long, thin, cylindrical structure that conveys info from the
soma of a neuron to its terminal buttons
multipolar neuron - Correct Answers -a neuron with 1 axon and many dendrites
attached to its soma
bipolar neuron - Correct Answers -a neuron with 1 axon and 1 dendrite attached to its
soma
unipolar neuron - Correct Answers -a neuron with 1 axon attached to its soma; the axon
divides, with 1 branch receiving sensory info and the other sending the info into the
CNS
terminal button - Correct Answers -the bud at the end of a branch of an axon; form
synapses with another neuron; sends info to that neuron
neurotransmitter - Correct Answers -a chemical that is released by a terminal button;
has an excitatory or inhibitory effect on another neuron
membrane - Correct Answers -a structure consisting principally of lipid molecules that
defines the outer boundaries of a cell and also constitutes many of the cell organelles
cytoplasm - Correct Answers -the viscous, semiliquid substance contained in the interior
of a cell
mitochondria - Correct Answers -an organelle that is responsible for extracting energy
from nutrients
adenosine triphospohate (ATP) - Correct Answers -A molecule of prime importance to
cellular energy metabolism; its breakdown liberates energy. AKA: ATP.
nucleus - Correct Answers -a structure in the central region of a cell, containing the
chromosomes
AND ANSWERS
cerebral cortex - Correct Answers -The outermost layer of the brain
frontal, parietal, occipital, and temporal - Correct Answers -4 lobes of the cortex (F-
POT)
neurons - Correct Answers -basic units of communication in the nervous system. AKA:
nerve cells
sympathetic division - Correct Answers -the portion of the autonomic nervous system
that controls functions that accompany arousal and expenditure of energy
sympathetic ganglia - Correct Answers -nodules that contain synapses between
preganglionic and postganglionic neurons of the sympathetic nervous system
sympathetic ganglion chain - Correct Answers -one of a pair of groups of sympathetic
ganglia that lie ventrolateral to the vertebral column
preganglionic neorn - Correct Answers -efferent neuron of the ANS whose cell body is
located in a cranial nerve nucleus or in the intermediate horn of the spinal gray matter
and whose terminal buttons synapse upon postganglionc neurons in the autonomic
ganglia
central nervous system - Correct Answers -the brain and spinal cord. AKA: CNS
peripheral nervous system - Correct Answers -the part of the nervous system outside
the brain and spinal cord, including the nerves attached to the brain and spinal cord.
AKA: PNS
sensory neuron - Correct Answers -a neuron that detects changes in the external or
internal environment and sends information abt these changes to the CNS
, motor neuron - Correct Answers -a neuron located within the CNS that controls the
contraction of a muscle or the secretion of a gland
interneuron - Correct Answers -a neuron located entirely within the CNS
soma - Correct Answers -the cell body of a neuron, which contains the nucleus
dendrite - Correct Answers -a branched, treelike structure attached to the soma of a
neuron' receives info from the terminal buttons of other neurons
synapse - Correct Answers -a junction between the terminal button of an axon and the
membrane of another neuron
axon - Correct Answers -the long, thin, cylindrical structure that conveys info from the
soma of a neuron to its terminal buttons
multipolar neuron - Correct Answers -a neuron with 1 axon and many dendrites
attached to its soma
bipolar neuron - Correct Answers -a neuron with 1 axon and 1 dendrite attached to its
soma
unipolar neuron - Correct Answers -a neuron with 1 axon attached to its soma; the axon
divides, with 1 branch receiving sensory info and the other sending the info into the
CNS
terminal button - Correct Answers -the bud at the end of a branch of an axon; form
synapses with another neuron; sends info to that neuron
neurotransmitter - Correct Answers -a chemical that is released by a terminal button;
has an excitatory or inhibitory effect on another neuron
membrane - Correct Answers -a structure consisting principally of lipid molecules that
defines the outer boundaries of a cell and also constitutes many of the cell organelles
cytoplasm - Correct Answers -the viscous, semiliquid substance contained in the interior
of a cell
mitochondria - Correct Answers -an organelle that is responsible for extracting energy
from nutrients
adenosine triphospohate (ATP) - Correct Answers -A molecule of prime importance to
cellular energy metabolism; its breakdown liberates energy. AKA: ATP.
nucleus - Correct Answers -a structure in the central region of a cell, containing the
chromosomes
