APHY 101 FINAL ASSESSMENT WITH 300+ QUESTIONS AND
100% CORRECT ANSWERS GRADED A+ UPDATED 2025
Neurons that conduct impulses from the CNS to muscles or glands are
CORRECT ANSWER motor neurons.
Which cells produce myelin in the brain and spinal cord? CORRECT
ANSWER Oligodendrocytes
Every neuron has CORRECT ANSWER a cell body.
If a resting potential becomes more negative, the membrane is
CORRECT ANSWER hyperpolarized.
Which of the following neuroglia are not part of the CNS? CORRECT
ANSWER Satellite cells
Three general functions of the nervous system are CORRECT ANSWER
integrative, motor, and sensory.
The brain and spinal cord comprise the central nervous system.
CORRECT ANSWER True
The most rapid conduction of an impulse along an axon occurs on a fiber
that is CORRECT ANSWER thick and myelinated.
,During the absolute refractory period, a stimulus of high intensity may
trigger a nerve impulse. CORRECT ANSWER False
The neurotransmitter that controls skeletal muscle contraction is
CORRECT ANSWER acetylcholine.
Because the response of a nerve fiber is all-or-none, a greater intensity
of stimulus does not produce a stronger impulse. CORRECT ANSWER
True
Most of the neurons in the brain and spinal cord are CORRECT
ANSWER multipolar.
Action potentials are related to impulses conducted along an axon in that
CORRECT ANSWER propagation of a series of action potentials along
a nerve cell fiber constitutes an impulse.
The simplest level of CNS function is the CORRECT ANSWER spinal
reflex.
The ___________ separates the cerebrum from the cerebellum.
CORRECT ANSWER transverse fissure
Gray matter of the spinal cord is mostly composed of CORRECT
ANSWER interneurons.
,Over a lifetime, the brain shrinks by about ___ percent. CORRECT
ANSWER 10
The meninges consist of CORRECT ANSWER the pia mater, arachnoid
mater, and dura mater.
Which lobe of your brain are you using when you answer this question?
CORRECT ANSWER Frontal
The ____________ is the thin meninx attached to the surface of the
brain, containing many nerves and blood vessels. CORRECT ANSWER
pia mater
The part of the brain that coordinates voluntary muscular movements is
the CORRECT ANSWER cerebellum.
Cerebrospinal fluid CORRECT ANSWER all of the above.
The part of the brain that assigns value to a memory is the CORRECT
ANSWER amygdala.
The dura mater is the outermost layer of the meninges. CORRECT
ANSWER True
, Symptoms of concussion include all except CORRECT ANSWER
decreased sensitivity to light and sound.
Sensory receptors include CORRECT ANSWER all of the above.
Which of the following is part of the inner tunic of the eye? CORRECT
ANSWER Retina
Movement of hair cells in the semicircular canals signals CORRECT
ANSWER the direction of motion.
Rods are more sensitive to light than cones, but cones are important for
color vision. CORRECT ANSWER True
Tears contain an enzyme that reduces the risk of eye infection.
CORRECT ANSWER True
Bitter receptors sense CORRECT ANSWER acids.
Temperature senses use two types of CORRECT ANSWER free nerve
endings.
The ability to ignore your socks around your ankles demonstrates
CORRECT ANSWER sensory adaptation.
100% CORRECT ANSWERS GRADED A+ UPDATED 2025
Neurons that conduct impulses from the CNS to muscles or glands are
CORRECT ANSWER motor neurons.
Which cells produce myelin in the brain and spinal cord? CORRECT
ANSWER Oligodendrocytes
Every neuron has CORRECT ANSWER a cell body.
If a resting potential becomes more negative, the membrane is
CORRECT ANSWER hyperpolarized.
Which of the following neuroglia are not part of the CNS? CORRECT
ANSWER Satellite cells
Three general functions of the nervous system are CORRECT ANSWER
integrative, motor, and sensory.
The brain and spinal cord comprise the central nervous system.
CORRECT ANSWER True
The most rapid conduction of an impulse along an axon occurs on a fiber
that is CORRECT ANSWER thick and myelinated.
,During the absolute refractory period, a stimulus of high intensity may
trigger a nerve impulse. CORRECT ANSWER False
The neurotransmitter that controls skeletal muscle contraction is
CORRECT ANSWER acetylcholine.
Because the response of a nerve fiber is all-or-none, a greater intensity
of stimulus does not produce a stronger impulse. CORRECT ANSWER
True
Most of the neurons in the brain and spinal cord are CORRECT
ANSWER multipolar.
Action potentials are related to impulses conducted along an axon in that
CORRECT ANSWER propagation of a series of action potentials along
a nerve cell fiber constitutes an impulse.
The simplest level of CNS function is the CORRECT ANSWER spinal
reflex.
The ___________ separates the cerebrum from the cerebellum.
CORRECT ANSWER transverse fissure
Gray matter of the spinal cord is mostly composed of CORRECT
ANSWER interneurons.
,Over a lifetime, the brain shrinks by about ___ percent. CORRECT
ANSWER 10
The meninges consist of CORRECT ANSWER the pia mater, arachnoid
mater, and dura mater.
Which lobe of your brain are you using when you answer this question?
CORRECT ANSWER Frontal
The ____________ is the thin meninx attached to the surface of the
brain, containing many nerves and blood vessels. CORRECT ANSWER
pia mater
The part of the brain that coordinates voluntary muscular movements is
the CORRECT ANSWER cerebellum.
Cerebrospinal fluid CORRECT ANSWER all of the above.
The part of the brain that assigns value to a memory is the CORRECT
ANSWER amygdala.
The dura mater is the outermost layer of the meninges. CORRECT
ANSWER True
, Symptoms of concussion include all except CORRECT ANSWER
decreased sensitivity to light and sound.
Sensory receptors include CORRECT ANSWER all of the above.
Which of the following is part of the inner tunic of the eye? CORRECT
ANSWER Retina
Movement of hair cells in the semicircular canals signals CORRECT
ANSWER the direction of motion.
Rods are more sensitive to light than cones, but cones are important for
color vision. CORRECT ANSWER True
Tears contain an enzyme that reduces the risk of eye infection.
CORRECT ANSWER True
Bitter receptors sense CORRECT ANSWER acids.
Temperature senses use two types of CORRECT ANSWER free nerve
endings.
The ability to ignore your socks around your ankles demonstrates
CORRECT ANSWER sensory adaptation.
