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WorksheetsExam 4 review
Total questions: 41
Worksheet time: 23mins
The sensory, or afferent, division of the peripheral nervous system transmits information from the __________ to the CNS.
sweat glands
skin
kidney
heart
The autonomic nervous system controls
smooth and cardiac muscles, and glands
somatic and skeletal muscle
visceral and somatic muscle
immune responses only
seventy percent of the sensory receptors in the body are associated with which special sense?
taste
smell
sight
hearing
Which of the following substances is a hormone and a neurotransmitter?
muscarine
norepinephrine
dopamine
nicotine
Which of the following statements regarding the autonomic nervous system is NOT correct?
Most parasympathetic ganglia are located in or near the visceral effector organ.
The sympathetic division has short preganglionic fibers and long postganglionic fibers.
Parasympathetic fibers have a craniosacral outflow.
The two divisions of the somatic nervous system are sympathetic and parasympathetic.
what role does the parasympathetic tone have on the heart?
it slows it down
it increases its rate
it maintains the rate neutral
it hyperpolarizes the cardiac muscle
the sympathetic nervous system is also known as the
fight or flight
rest and digest
visceral controler
homeostatic balancer
the parasympathetic division is also known as the
rest and digest
fight or flight
fight club
the mastermind of the body
Neurons can be classified structurally by the number of processes extending from their cell bodies. Which of the following is the most common neuron type in humans?
unipolar
bipolar
polar
multipolar
.
Relative to extracellular fluid, the interior of a neuron has a negative charge because _________
potassium is actively pumped into the cell
sodium is actively pumped into the cell
potassium diffuses out of the cell
chloride ions are actively pumped into the cell
he Nissl bodies in the neuron cell body are otherwise known as which cellular organelle(s)?
microtubules
rough endoplasmic reticulum
nucleus
centrioles
Which of the following statements best describes the resting membrane state in the neuron?
Only the voltage-gated K+ channels are open.
Only the voltage-gated K+ are closed.
Only the voltage-gated Na+ channels are open.
All of the voltage-gated Na+ and K+ channels are closed.
Which cells line the central cavities of the brain and spinal cord and provide a fairly permeable barrier between the CSF and nervous tissue?
astrocytes
ependymal cells
oligodendrocytes
microglial cells
Which of the following characteristics is NOT associated with a myelinated nerve fiber?
rapid conduction of nerve impulses
formation by oligodendrocytes in the central nervous system
the presence of nodes of Ranvier
slow conduction of nerve impulses
Which of the following events occurs at an electrical synapse?
Neurotransmitters bind to the postsynaptic receptors.
Calcium channels open in the presynaptic region.
A neurotransmitter is released by exocytosis.
Ions flow directly from one neuron to the next.
In which of the following areas do sorting and editing of sensory impulses take place?
prefrontal cortex
postcentral cortex
thalamic nuclei
basal nuclei
Which of the following areas is NOT involved in speech processing?
superior colliculi
Broca's area
lateral prefrontal cortex
Wernicke's area
Which of the following is NOT a function of the hypothalamus?
regulation of sleep-wake cycles
food intake regulation
body temperature regulation
balance
Which of the following is the autonomic control center?
midbrain
pons
medulla oblongata
hypothalamus
Of the three meningeal layers that surround the CNS, which one is located in the middle?
arachnoid mater
pia mater
dura mater
dural sinuses
Which of the following landmarks separates the cerebral hemispheres?
the central sulcus
septum pellucidum
the transverse cerebral fissure
the longitudinal fissure
Which of the following cranial nerves is NOT involved with the eye?
trigeminal
optic
abducens
throclear
How many pairs of spinal nerves are there?
31 pairs
25 pairs
12 pairs
89 pairs
The dorsal horns are responsible for receiving
sensory input
motor output
interferon input
covalescent input
Ventral horns are kneon for containing mainly
motor neurons
sensory input
ganglia
roots
ascending fibers go to
higher centers
muscles
ganglia
chickens
The PNS does not include
nerves
ganglia
muscles
tracts
Thermoreceptors are responsible for perceiving
temperature change
temperature
light
pain
Photoreceptors are responsible for responding to
light energy
temperature changes
pain
pressure
nocireceptors are sensitive to
pain
light
pressure
stretch
Exteroreceptors respond to stimuli found
inside of the body
outside of the body
lateral to the body
superficial to the body
Why is the effect of acetylcholine and norepinephrine NOT consistently excitatory or inhibitory to a given target tissue?
A neurotransmitter can be excitatory or inhibitory depending upon the type of neuron that secretes the neurotransmitter.
The action of any neurotransmitter depends upon the pH of the interstitial fluid.
The action of any neurotransmitter depends on the receptor to which it binds.
A neurotransmitter can be excitatory or inhibitory depending upon the quantity of the neurotransmitter being secreted.
Which part of the brain regulates thirst?
cerebral cortex
hypothalamus
cerebellum
pons
the only cranial nerve that extends beyond the head and neck region is
vagus nerve
phrenic nerve
optic nerve
sciatic nerve
A nerve that carries autonomic signals away from the central nervous system is classified as a __________.
visceral efferent
somatic afferent
visceral afferent
somatic efferent
Which of the following is NOT a feature of the cerebral cortex?
its convoluted surface triples its surface area.
It accounts for 40% of the brain mass.
it is arranged in six layers.
It is composed of white matter.
The visceral sensory area of the cerebral cortex is involved in the conscious perception of all the following EXCEPT __________.
full bladder
taste
upset stomach
the feeling that your lungs will burst when you hold your breath
the loose connective tissues that encloses the axons and their myelin sheaths
endoneurium
perineurium
epineurium
fascicle
what is the order from deep to superficial of the connective tissue converings of a nerve
The accessory structures of the eye do NOT include the __________.
lacrimal glands
eyebrows
cornea
eyelids
Ninety percent of all the preganglionic parasympathetic fibers are found in the __________.
facial nerve
trigeminal nerve
vagus nerve
oculomotor nerve
