RIO SALADO BIO 201 EXAM 3| ACTUAL EXAM ALL
QUESTIONS AND CORRECT ANSWERS ALREADY
GRADED A+ 2025
Potentials category: The period after an initial stimulus when a neuron is not sensitive to another stimulus
is what kind of period?
Reflective
Refractory
Recovery - Answer- Refractory
CNS, PNS, ANS category: Collections of nerve cell bodies outside the central nervous system are called
ganglia. T or F - Answer- True
Neurons category: The synaptic cleft is a structural feature of a neuron. T or F - Answer- False
Circuits category: Which neural circuit transmits a single impulse over and over?
Repeating
Excitable
Reverberating - Answer- Reverberating
Neurons category: The sheath of Schwann is also called the neurilemma. T or F - Answer- True
Potentials category: If a motor neuron in the body were stimulated by an electrode placed about midpoint
along the length of the axon, the impulse would spread in what way?
Bidirectionally
Unidirectionally - Answer- Bidirectionally
Neurophysiology category: In what way does the interior surface of a cell membrane of a resting
(nonconducting) neuron differ from the external environment? The interior is negatively charged and
contains more sodium.
T or F - Answer- False
,Potentials category: When a sensory neuron is excited by some form of energy, the resulting graded
potential is called a generator potential. T or F - Answer- True
Which of the following is two longitudinal ridges on the medulla oblongata where many descending
fibers cross over?
Pyramids
Amygdala
Pons
Substantia nigra - Answer- Pyramids
Which of the following is a conduction pathway between higher and lower brain centers and houses
nuclei for cranial nerves V-VII?
Pons
Posterior
Central canal
Pituitary gland - Answer- Pons
Which of the following includes the thalamus, hypothalamus, and epithalamus?
Substantia nigra
Central canal
Diencephalon
Corpus callosum - Answer- Diencephalon
Which of the following is the large tract that connects the right and left sides of the brain?
Pons
Central canal
Pyramids
Corpus callosum - Answer- Corpus callosum
Which of the following are valvelike and protrude externally through the dura mater to absorb
cerebrospinal fluid into venous blood?
,Substantia nigra
Arachnoid villi
Pyramids
Corpus callosum - Answer- Arachnoid villi
Sensory neurons enter the spinal cord via which type of horn?
Pons
Theta
Posterior
Skill - Answer- Posterior
Which of the following is the main switch station for memory? If the right and left areas are damaged, the
past is lost.
Pons
Amygdala
Thalamus
Medulla - Answer- Amygdala
Where are nuclei of cranial nerves V, VI, and VII found?
Midbrain
Pons
Medulla
Cerebrum - Answer- Pons
The primary auditory cortex is located in which lobe?
Prefrontal
Temporal
Frontal
Parietal - Answer- Temporal
, The subarachnoid space lies between the arachnoid and which of the following?
Epidura
Pia
Sulcus
Dura - Answer- Pia
Where are the vital centers for the control of heart rate, respiration, and blood pressure located?
Pons
Medulla
Cerebrum
Midbrain - Answer- Medulla
The fissure separating the cerebral hemispheres is which fissure?
Central
Parieto-occipital
Longitudinal
Lateral - Answer- Longitudinal
Which meningeal layer is rough, thick, and leathery?
Dura mater
Subarachnoid
Pia mater
Arachnoid - Answer- Dura mater
Which of the following is a shallow groove on the surface of the cortex?
Sulcus
Fissure
Furrow
Gyrus - Answer- Sulcus
QUESTIONS AND CORRECT ANSWERS ALREADY
GRADED A+ 2025
Potentials category: The period after an initial stimulus when a neuron is not sensitive to another stimulus
is what kind of period?
Reflective
Refractory
Recovery - Answer- Refractory
CNS, PNS, ANS category: Collections of nerve cell bodies outside the central nervous system are called
ganglia. T or F - Answer- True
Neurons category: The synaptic cleft is a structural feature of a neuron. T or F - Answer- False
Circuits category: Which neural circuit transmits a single impulse over and over?
Repeating
Excitable
Reverberating - Answer- Reverberating
Neurons category: The sheath of Schwann is also called the neurilemma. T or F - Answer- True
Potentials category: If a motor neuron in the body were stimulated by an electrode placed about midpoint
along the length of the axon, the impulse would spread in what way?
Bidirectionally
Unidirectionally - Answer- Bidirectionally
Neurophysiology category: In what way does the interior surface of a cell membrane of a resting
(nonconducting) neuron differ from the external environment? The interior is negatively charged and
contains more sodium.
T or F - Answer- False
,Potentials category: When a sensory neuron is excited by some form of energy, the resulting graded
potential is called a generator potential. T or F - Answer- True
Which of the following is two longitudinal ridges on the medulla oblongata where many descending
fibers cross over?
Pyramids
Amygdala
Pons
Substantia nigra - Answer- Pyramids
Which of the following is a conduction pathway between higher and lower brain centers and houses
nuclei for cranial nerves V-VII?
Pons
Posterior
Central canal
Pituitary gland - Answer- Pons
Which of the following includes the thalamus, hypothalamus, and epithalamus?
Substantia nigra
Central canal
Diencephalon
Corpus callosum - Answer- Diencephalon
Which of the following is the large tract that connects the right and left sides of the brain?
Pons
Central canal
Pyramids
Corpus callosum - Answer- Corpus callosum
Which of the following are valvelike and protrude externally through the dura mater to absorb
cerebrospinal fluid into venous blood?
,Substantia nigra
Arachnoid villi
Pyramids
Corpus callosum - Answer- Arachnoid villi
Sensory neurons enter the spinal cord via which type of horn?
Pons
Theta
Posterior
Skill - Answer- Posterior
Which of the following is the main switch station for memory? If the right and left areas are damaged, the
past is lost.
Pons
Amygdala
Thalamus
Medulla - Answer- Amygdala
Where are nuclei of cranial nerves V, VI, and VII found?
Midbrain
Pons
Medulla
Cerebrum - Answer- Pons
The primary auditory cortex is located in which lobe?
Prefrontal
Temporal
Frontal
Parietal - Answer- Temporal
, The subarachnoid space lies between the arachnoid and which of the following?
Epidura
Pia
Sulcus
Dura - Answer- Pia
Where are the vital centers for the control of heart rate, respiration, and blood pressure located?
Pons
Medulla
Cerebrum
Midbrain - Answer- Medulla
The fissure separating the cerebral hemispheres is which fissure?
Central
Parieto-occipital
Longitudinal
Lateral - Answer- Longitudinal
Which meningeal layer is rough, thick, and leathery?
Dura mater
Subarachnoid
Pia mater
Arachnoid - Answer- Dura mater
Which of the following is a shallow groove on the surface of the cortex?
Sulcus
Fissure
Furrow
Gyrus - Answer- Sulcus
