RIO SALADO BIO 201 ANATOMY AND
PHYSIOLOGY FINAL TEST PAPER 2026 FULL
SOLUTION VERIFIED
◉ The nodes or Ranvier are found only on myelinated, peripheral
neural processes. Answer: true
◉ efferent nerve fibers may be described as motor nerve fibers.
Answer: true
◉ a positive feedback cycle is the main force in the generation of
graded potentials at receptor ends. Answer: false
◉ a graded potential that is the result of a neurotransmitter released
into the synapse between two neurons is called a postsynaptic
potential. Answer: true
◉ In myelinated axons the voltage-gated sodium channels are
concentrated at the nodes of Ranvier. Answer: true
◉ The two major classes of grade potentials are transmitter
potentials and receptor potentials. Answer: False, generator
potentials and post-synaptic potentials
,◉ If bacteria invaded the CNS tissue, microglia would migrate to the
area to engulf and destroy them. Answer: true
◉ Myelination of the nerve fibers in the CNS is the job of the
oligodendrocyte. Answer: true
◉ Neurons in the CNS are organized into functional groups. Answer:
true
◉ Reflexes are rapid, automatic responses to stimuli. Answer: true
◉ Large-diameter nerve fibers conduct impulses much faster than
small-diameter fibers.. Answer: true
◉ During depolarization, the inside of the neuron's membrane
becomes less negative.. Answer: true
◉ the oligodendrocytes can myelinate several axons. Answer: true
◉ sensory neurons have long dendrites, while motor neurons have
long axons. Answer: true
,◉ Enkephalins and endorphins are peptides that act like morphine..
Answer: true
◉ A stimulus traveling toward a synapse appears to open calcium
ion channels at the presynaptic end, which in turn promotes fusion
of synaptic vesicles to the axonal membrane.. Answer: true
◉ Saltatory conduction occurs because of the presence of salt
around the neuron. Answer: false, signal jumping from node to node
along the axon
◉ Neurons that are far away from the center of the neuron pool and
that are not easily excited by and incoming stimulus are in the
discharge zone. Answer: false, facilitated zone
◉ Acetylcholine is not a biogenic amine. Answer: true
◉ A synapse formed between the axon ending of one neuron and the
cell body of another neuron is called an axosomatic synapse..
Answer: true
◉ Voltage is always measured between two points and may be called
the potential between these two points.. Answer: true
, ◉ the all-or-non phenomenon as applied to nerve conduction states
that the whole nerve cell must be stimulated for the conduction to
take place. Answer: false
◉ Cell bodies of sensory neurons are located in ganglia lying outside
the CNS. Answer: true
◉ Strong stimuli cause the amplitude of AP generated to increase.
Answer: false
◉ Is the main switch station for memory; if the right and left areas
are damaged, the past is lost.. Answer: amygdala
◉ In stage 3 sleep, these waves and delta waves appear.. Answer:
theta
◉ The largest nuclear mass in the midbrain. Answer: substantia
nigra
◉ These are valvelike and protrude externally through the dura
mater to absorb cerebrospinal fluid into venous blood.. Answer:
arachnoid villi
PHYSIOLOGY FINAL TEST PAPER 2026 FULL
SOLUTION VERIFIED
◉ The nodes or Ranvier are found only on myelinated, peripheral
neural processes. Answer: true
◉ efferent nerve fibers may be described as motor nerve fibers.
Answer: true
◉ a positive feedback cycle is the main force in the generation of
graded potentials at receptor ends. Answer: false
◉ a graded potential that is the result of a neurotransmitter released
into the synapse between two neurons is called a postsynaptic
potential. Answer: true
◉ In myelinated axons the voltage-gated sodium channels are
concentrated at the nodes of Ranvier. Answer: true
◉ The two major classes of grade potentials are transmitter
potentials and receptor potentials. Answer: False, generator
potentials and post-synaptic potentials
,◉ If bacteria invaded the CNS tissue, microglia would migrate to the
area to engulf and destroy them. Answer: true
◉ Myelination of the nerve fibers in the CNS is the job of the
oligodendrocyte. Answer: true
◉ Neurons in the CNS are organized into functional groups. Answer:
true
◉ Reflexes are rapid, automatic responses to stimuli. Answer: true
◉ Large-diameter nerve fibers conduct impulses much faster than
small-diameter fibers.. Answer: true
◉ During depolarization, the inside of the neuron's membrane
becomes less negative.. Answer: true
◉ the oligodendrocytes can myelinate several axons. Answer: true
◉ sensory neurons have long dendrites, while motor neurons have
long axons. Answer: true
,◉ Enkephalins and endorphins are peptides that act like morphine..
Answer: true
◉ A stimulus traveling toward a synapse appears to open calcium
ion channels at the presynaptic end, which in turn promotes fusion
of synaptic vesicles to the axonal membrane.. Answer: true
◉ Saltatory conduction occurs because of the presence of salt
around the neuron. Answer: false, signal jumping from node to node
along the axon
◉ Neurons that are far away from the center of the neuron pool and
that are not easily excited by and incoming stimulus are in the
discharge zone. Answer: false, facilitated zone
◉ Acetylcholine is not a biogenic amine. Answer: true
◉ A synapse formed between the axon ending of one neuron and the
cell body of another neuron is called an axosomatic synapse..
Answer: true
◉ Voltage is always measured between two points and may be called
the potential between these two points.. Answer: true
, ◉ the all-or-non phenomenon as applied to nerve conduction states
that the whole nerve cell must be stimulated for the conduction to
take place. Answer: false
◉ Cell bodies of sensory neurons are located in ganglia lying outside
the CNS. Answer: true
◉ Strong stimuli cause the amplitude of AP generated to increase.
Answer: false
◉ Is the main switch station for memory; if the right and left areas
are damaged, the past is lost.. Answer: amygdala
◉ In stage 3 sleep, these waves and delta waves appear.. Answer:
theta
◉ The largest nuclear mass in the midbrain. Answer: substantia
nigra
◉ These are valvelike and protrude externally through the dura
mater to absorb cerebrospinal fluid into venous blood.. Answer:
arachnoid villi
