WorksheetsA&P12 Nervous System III
Total questions: 78
Worksheet time: 39mins
Receptors for the general senses are found
in a few clusters.
only in the integumentary system.
widely distributed throughout the body.
throughout the visceral organs
Receptors for the special senses are found
primarily in the head.
throughout the integumentary system
in the fingertips
in internal organs
The brain interprets input from sensory receptors as
reception
sensation
perception
contraception
Sensory receptors include
mechanoreceptors
chemoreceptors
photoreceptors
all of these
The ability to ignore your socks around your ankles demonstrates
general adaptation
receptor integration
interpretive assimilation
sensory adaptation
The sequence of information flow in response to biting into a slice of pizza is
perception, sensation, impulse send to CNS, sensory receptors activated
sensory receptors activated, impulse sent to CNS, sensation, perception
impulse sent to CNS, sensory receptors activated, perception, sensation
impulse sent to CNS, sensory receptors activated, sensation, perception
Max returns to his dorm room late at night to find his roommate throwing up. The smell is at first so bad that Max wants to vomit too, but after helping his roommate clean up, the odor seems to fade. Max has experienced
damage to his sensory receptors
sensory adaptation
a response to the decreasing concentration of odorant molecules in the room
a hallucination
Sensory impulses are stimulated at receptors by
neurotransmitters
decreasing permeability of nerve cell membranes
sub-threshold potential
local changes in their cell membrane potentials
Olfactory receptors, which provide the sense of smell, are
thermoreceptors
mechanoreceptors
chemoreceptors
proprioceptors
A sensation is ______, and projection of a sensation is the ______.
the stimulation of a receptor cell; transmission of an impulse into the brain
a feeling that results from sensory stimulation; brain causing it to seem to come from the receptors being stimulated
a good feeling from a stimulation; right side of the brain projecting the sensation to the left side, or vice versa
a change in membrane permeability of a receptor; transmission of an impulse into a sensory area of the brain
Which of the following are paired correctly?
Baroreceptors-stimulated by blood pressure changes
Pain receptors-stimulated by damage to tissues
Thermoreceptors-stimulated by temperature changes
All of these
Henry has hereditary sensory and autonomic neuropathy. He lacks
chemoreceptors
nociceptors
mechanoreceptors
baroreceptors
The war veteran experiences an intense burning sensation seeming to come from where his foot had been amputated. He most likely has
hereditary sensory and autonomic neuropathy
post traumatic stress disorder
reflex sympathetic dystrophy
anosmia
Another name for pain receptors is
tactile corpuscles
lamellated corpuscles
nociceptors
mechanoreceptors
Pain impulses are first processed in the
gray matter of the posterior horn.
motor cortex of the cerebrum
dorsal root ganglion
cerebral cortex
Fibers of the spinothalamic tract transmit pain and temperature information to the
hypothalamus
cerebellum
brainstem
thalamus
A pole vaulter keeps track of his position in mid-air through
lamellated corpuscles
pain receptors
proprioceptors
baroreceptors
Pain receptors differ from other somatic receptors by
being stimulated only when pain comes from skeletal muscle.
adapting very little, if at all.
not being able to project impulses back to their origin.
adapting much more than other receptors.
Temperature senses use two types of
chemoreceptors
proprioceptors
tactile corpuscles
free nerve endings
Pain receptors
respond to factors that can damage tissue
adapt rapidly
are among the most specialized receptors
are widely distributed in the brain
The Golgi tendon organ is stimulated more when
muscles are metabolically active and produce oxygen
muscle tension increases
muscle tension decreases
muscle tension stays the same
As a result of the tympanic reflex,
the bridge of auditory ossicles becomes less rigid
vibrations are transmitted more effectively to the inner ear
the malleus is pulled toward the eardrum.
vibrations are transmitted less effectively to the inner ear.
Taste receptors are
found only on the tongue
unable to divide
modified connective tissue cells
modified epithelial cells
Which of the following is not a primary taste sensation?
Sweet
Salty
Pungent
Sour
The hearing receptors are most closely associated with the
ampulla
spiral organ
utricle
saccule
The range of human hearing is about
2,000-3,000 vibrations per second
2,000-200,000 vibrations per second.
20-20,000 vibrations per second.
2-2,000 vibrations per second.
Which of the following is part of the inner tunic of the eye?
Retina
Cornea
Choroid coat
Sclera
The lens of the eye thickens when the
suspensory ligaments pull on the lens capsule
ciliary processes relax
ciliary muscles relax
ciliary muscles contract
Visual sensations from images focused on the side of the retina are blurred because
there are no rods in this region.
there are more cones than rods in this region
there are more rods than cones in this region
the optic disc is located on the side of the retina
The color receptors in the retina are most sensitive to light waves that are
red, green, and blue
red, blue, and yellow
green, yellow, and purple
orange, green, and purple
Stereoscopic vision results when the
images in both eyes are identical
images in the eyes are different
rods of one eye are stimulated and the cones of the other eye are stimulated
brain interprets the images in two dimensions
Arnold enters a darkened movie theater on a sunny summer afternoon. It takes many minutes for his eyes to adapt to the darkness because
it takes some time for the retina to rebuild its rhodopsin stores from opsin and retinal
the rods in the eye work only in bright light, and it takes time for the cones to work in weak light.
the iris takes time to close after being subjected to bright light
the optic nerve fatigues in bright light, and it takes time to recover
Rhodopsin is found in ____ cells.
cone
lens
rod
olfactory receptor
Light is refracted when it passes
between media of the same optical density.
into glass at a right angle.
between media of different optical densities at a right angle.
between media of different optical densities at an oblique angle.
As they extend from the retina to the brain, the nerve fibers
from the nasal half of each retina cross over.
from the temporal half of each retina cross over.
all cross over.
do not cross over.
Anosmia is loss of
taste
smell
hearing
vision
If you were a physician evaluating a young person who has conductive deafness, which of the following would you consider in your differential diagnosis?
torn tympanic membrane
a brain tumor
damage to the auditory nerve
use of the antibiotic drug streptomycin
If a person's right visual cortex is damaged, the injury will most likely affect vision from the
right eye only.
left eye only.
nasal side of one eye and the temporal side of the other eye.
nasal side of both eyes.
The taste receptor that amino acids such as glutamic acid activate is
sour
salty
bitter
umami
Bitter receptors sense
alkaloids
acids
inorganic salts
carbohydrates
Jenny slurps up a plate of beef lo mein at a Chinese restaurant. "That tastes great, but I can't quite describe it." What type of taste sensation is she experiencing?
Paprika
Umami
Starch
Pepper
Movement of hair cells in the semicircular canals signals
sound waves to the brain
the direction of motion
the frequency of the sound
the velocity of the movement
Treatment for cataract is usually removal of the
cornea
sclera
lens
vitreous humor
Glaucoma is usually caused by
clouding of the lens.
clouding of the lens capsule.
accumulation of vitreous humor.
accumulation of aqueous humor
Farsightedness after the age of forty-five is most likely caused by
loss of lens capsule elasticity
shortening of the eyeball
lengthening of the eyeball
changes in curvature of the cornea
A person who is colorblind lacks
retinas
one type of photopigment.
corneas
a gene that encodes the proteins in rod cells.
The painkiller sold as Ziconotide comes from a
bacterium
fungus
snail
plant
Opiate drugs used to treat pain come from a
bacterium
fungus
snail
plant
Lorelei thinks of the days of the week and months of the year as particular colors. She has
synesthesia
neuropathy
a deficiency of neurons in her visual cortex
too few synapses in her hypothalamus
Smell and taste disorders may be caused by
a side effect of a drug.
allergies.
a head injury.
all of these
A cochlear implant treats
a torn tympanic membrane
otosclerosis
conductive deafness
sensorineural deafness
Otosclerosis affects the
tympanic membrane
auditory ossicles
cochlea
auditory nerve
A curvature defect of the lens or cornea in which some parts of an image are in focus on the retina and other parts are blurred and vision is distorted is called
presbyopia
astigmatism
hyperopia
myopia
General senses result from stimulation of receptors in the head only.
FALSE
TRUE
Sensory receptors are specialized cells or multicellular structures that collect information from the environment and stimulate neurons to send impulses along sensory fibers to the brain, where the cerebral cortex forms a perception.
TRUE
FALSE
Receptors that are stimulated by changes in chemical concentrations are called thermoreceptors.
FALSE
TRUE
Stretching of tissues can cause pain sensations to arise from visceral organs.
TRUE
FALSE
Referred pain occurs when the brain projects the sensation back to the original source in the body from which the pain originated.
FALSE
TRUE
The stapes transmit vibrations to the round window of the inner ear.
FALSE
TRUE
The utricle and saccule contain the sensory receptors associated with the sense of dynamic equilibrium.
FALSE
TRUE
The conjunctiva is a layer of tissue that lines the inner surface of the eyelids and covers most of the anterior surface of the eye.
TRUE
FALSE
The auditory ossicles are in the inner ear.
FALSE
TRUE
Tears contain an enzyme that reduces the risk of eye infection.
TRUE
FALSE
When the radial muscles of the iris contract, the diameter of the pupil decreases.
FALSE
TRUE
When all three sets of cones are stimulated, a person senses white light.
TRUE
FALSE
The taste of food is the same, whether a person has a respiratory infection or not.
FALSE
TRUE
The optic disc is medial to the fovea centralis and is the site from which nerve fibers from the retina leave the eye and become part of the optic nerve.
TRUE
FALSE
Rods are more sensitive to light than cones, but cones are important for color vision.
TRUE
FALSE
Impulses from taste receptors can travel in the facial, glossopharyngeal, and vagus nerves.
TRUE
FALSE
Sound vibrations are conducted from the malleus to the stapes to the incus.
FALSE
TRUE
Impulses from the spiral organ travel on the vestibulocochlear nerve.
TRUE
FALSE
Optic nerve fibers cross over in the thalamus.
FALSE
TRUE
Light breaks down rhodopsin.
TRUE
FALSE
Floaters are bowel movements that float due to a fatty diet.
FALSE
TRUE
Colorblindness is inherited.
TRUE
FALSE
A person who associates sounds with tastes has synesthesia.
TRUE
FALSE
In hyperopia, the eyeball is too short and the focal point is in front of the retina.
FALSE
TRUE
In astigmatism the cornea or the lens is elliptically rather than spherically curved.
TRUE
FALSE
