ANA 109 Exam 5 UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Which CNS region has this function: higher brain functions? - CORRECT
ANSWER Cerebrum
Which CNS region has this function: Diencephalon? - CORRECT
ANSWER Homostatic control
Which CNS region has this function: spinal cord? - CORRECT ANSWER Information
superhighway
Which CNS region has this function: cerebellum? - CORRECT ANSWER Movement
Control
The role of CSF is to do what? - CORRECT ANSWER To provide neutral buoyancy to
the CNS
Damage to the ____ would prevent the flow of CSF from the spinal cord and brain. -
CORRECT ANSWER Cerebral Aqueduct
What is the common type of neuron within the CNS? - CORRECT ANSWER A
multipolar neuron
How could you distinguish between whether a disease (or damage) to the CNS causes a loss
or an over-production of astrocytes? - CORRECT ANSWER A loss of astrocytes
would lead to over-excitability of neurons and overproduction might lead to a decrease in
neuron activity
What would happen if all microglia cells were lost from the CNS? - CORRECT
ANSWER Immune surveillance within the CNS would be decreased
, Sensory neurons ___ sensory information in to forms understandable by the ___. -
CORRECT ANSWER Transduce, central nervous system
Growth cones are guided by ___. - CORRECT ANSWER chemotaxis of cues
Fetal neurons find their correct targets by ___. - CORRECT ANSWER moving along
glia
A neural circuit involving communication between two or more cells could be further
classified as ___. - CORRECT ANSWER complex
Skeletal muscle is controlled by ___ circuits. - CORRECT ANSWER divergent
The minimal number of cells in a polysynaptic spinal cord reflex arc is? - CORRECT
ANSWER 3
Which of the following divides the spinal cord into lateral sections? - CORRECT
ANSWER dorsal medial sulcus and ventral medial fissure
Efficient and afferent neurons pass through ___ to enter the spinal cord. - CORRECT
ANSWER intervertebral formina
A dermatome is a defined as ___. - CORRECT ANSWER a region of skin innervated
by a particular spinal nerve
What is a plexus? - CORRECT ANSWER A braid-like structure intermingling motor,
autonomic, and sensory neurons
A patient reports numbness in his left arm and was severely burned when his elbow was too
close to an open flame. What nerve plexus and nerve could be damaged? - CORRECT
ANSWER Brachial plexus and any one of several nerves that innervate the arm
QUESTIONS AND CORRECT ANSWERS
Which CNS region has this function: higher brain functions? - CORRECT
ANSWER Cerebrum
Which CNS region has this function: Diencephalon? - CORRECT
ANSWER Homostatic control
Which CNS region has this function: spinal cord? - CORRECT ANSWER Information
superhighway
Which CNS region has this function: cerebellum? - CORRECT ANSWER Movement
Control
The role of CSF is to do what? - CORRECT ANSWER To provide neutral buoyancy to
the CNS
Damage to the ____ would prevent the flow of CSF from the spinal cord and brain. -
CORRECT ANSWER Cerebral Aqueduct
What is the common type of neuron within the CNS? - CORRECT ANSWER A
multipolar neuron
How could you distinguish between whether a disease (or damage) to the CNS causes a loss
or an over-production of astrocytes? - CORRECT ANSWER A loss of astrocytes
would lead to over-excitability of neurons and overproduction might lead to a decrease in
neuron activity
What would happen if all microglia cells were lost from the CNS? - CORRECT
ANSWER Immune surveillance within the CNS would be decreased
, Sensory neurons ___ sensory information in to forms understandable by the ___. -
CORRECT ANSWER Transduce, central nervous system
Growth cones are guided by ___. - CORRECT ANSWER chemotaxis of cues
Fetal neurons find their correct targets by ___. - CORRECT ANSWER moving along
glia
A neural circuit involving communication between two or more cells could be further
classified as ___. - CORRECT ANSWER complex
Skeletal muscle is controlled by ___ circuits. - CORRECT ANSWER divergent
The minimal number of cells in a polysynaptic spinal cord reflex arc is? - CORRECT
ANSWER 3
Which of the following divides the spinal cord into lateral sections? - CORRECT
ANSWER dorsal medial sulcus and ventral medial fissure
Efficient and afferent neurons pass through ___ to enter the spinal cord. - CORRECT
ANSWER intervertebral formina
A dermatome is a defined as ___. - CORRECT ANSWER a region of skin innervated
by a particular spinal nerve
What is a plexus? - CORRECT ANSWER A braid-like structure intermingling motor,
autonomic, and sensory neurons
A patient reports numbness in his left arm and was severely burned when his elbow was too
close to an open flame. What nerve plexus and nerve could be damaged? - CORRECT
ANSWER Brachial plexus and any one of several nerves that innervate the arm
