BIOL 373L STUDY SET QUESTIONS
WITH 100% SOLVED SOLUTIONS!!!
Sensory cells CORRECT ANSWERS respond to factors such as light pressure and the
chemical nature of certain molecules by creating electrical signals which are sent to the
CNS
Visual acuity CORRECT ANSWERS the degree of detail the eye can distinguish
myopia CORRECT ANSWERS near lighted, light focuses in front of the retina, unable to
see far, distant objects are out of focus
hyperopia CORRECT ANSWERS far sighted, hard to focus objects close to the eye
astigmatism CORRECT ANSWERS the blurring or distortion of the visual image caused
by a defective curvature of the refractive surfaces of the eye
color blindness CORRECT ANSWERS a diminished ability to sense color accurately
taste buds CORRECT ANSWERS consist of barrel shaped groupings of sensory cells
located on the tongue and in the epithelial lining of the mouth
color blindness is caused by CORRECT ANSWERS a deficiency in the retinas systems
for converting red blue of green light into receptor potentials
ichikawa color vision test CORRECT ANSWERS measures the perception of color
tonic olfaction CORRECT ANSWERS or slowly-adapting sensors produces a
continuous sequence of AP as long as the stimulus last
Phasic olfaction CORRECT ANSWERS or rapidly adapting receptors detect a stimulus
of constant strength, send a stream of AP of steadily decreasing frequency to the CNS
is the ear more efficient at detecting sound waves that are conducted through bone or
air CORRECT ANSWERS air
Air conduction should be greater than bone conduction and so the patient should be
able to hear the tuning fork next to the pinna (outer ear) after they can no longer hear it
when held against the mastoid. during the RHinnes test
proprioceptors CORRECT ANSWERS send sensory info to the brain regarding the
tension of the skeletal muscles and the positions of the limbs
the special senses are CORRECT ANSWERS vision
taste
, olfaction
hearing
equilibrium
reflex arc CORRECT ANSWERS fundamental pathway linking sensory input and motor
output
nerve cells in a monosynaptic reflex CORRECT ANSWERS afferent (sensory) neuron
efferent (motor) neuron
cutaneous reflex- Babinski reflex CORRECT ANSWERS elicited by stimulation of
cutaneous receptors in the sole of the foot, it is integrated not in the spinal cord, but in
the brain
normal response causes flexion (down) of big toe while other toes flex and come
together
pupillary light reflex CORRECT ANSWERS reflex is consensual; the stimulus on one
side produce a response on both sides
corneal blink reflex CORRECT ANSWERS consensual
menace reflex CORRECT ANSWERS not controlled by higher centers
motor unit CORRECT ANSWERS single motor neurone and all of the skeletal muscles
that it controls
ratio of muscle cells to motor neurons CORRECT ANSWERS low
gives ability to control its motions precisely
vertical axis of eye muscles CORRECT ANSWERS medial rectus- addcuts
lateral rectus- abducts
horizontal eye muscles CORRECT ANSWERS superior rectus- elevates and intorts
inferior rectus- depresses anad extorts
torsional eye muscles CORRECT ANSWERS superior oblique muscle- intort with slight
depression
inferior oblique muscle- extort with slight elevation
these muscles are innervated by motor neurone that have electrical activity with a
________ component that controls the position of the eye and a _______ component
that controls velocity CORRECT ANSWERS tonic
phasic
eye velocity commands are sent along a _____ path from specialized brain formations
or fields to the motor neurons CORRECT ANSWERS direct
WITH 100% SOLVED SOLUTIONS!!!
Sensory cells CORRECT ANSWERS respond to factors such as light pressure and the
chemical nature of certain molecules by creating electrical signals which are sent to the
CNS
Visual acuity CORRECT ANSWERS the degree of detail the eye can distinguish
myopia CORRECT ANSWERS near lighted, light focuses in front of the retina, unable to
see far, distant objects are out of focus
hyperopia CORRECT ANSWERS far sighted, hard to focus objects close to the eye
astigmatism CORRECT ANSWERS the blurring or distortion of the visual image caused
by a defective curvature of the refractive surfaces of the eye
color blindness CORRECT ANSWERS a diminished ability to sense color accurately
taste buds CORRECT ANSWERS consist of barrel shaped groupings of sensory cells
located on the tongue and in the epithelial lining of the mouth
color blindness is caused by CORRECT ANSWERS a deficiency in the retinas systems
for converting red blue of green light into receptor potentials
ichikawa color vision test CORRECT ANSWERS measures the perception of color
tonic olfaction CORRECT ANSWERS or slowly-adapting sensors produces a
continuous sequence of AP as long as the stimulus last
Phasic olfaction CORRECT ANSWERS or rapidly adapting receptors detect a stimulus
of constant strength, send a stream of AP of steadily decreasing frequency to the CNS
is the ear more efficient at detecting sound waves that are conducted through bone or
air CORRECT ANSWERS air
Air conduction should be greater than bone conduction and so the patient should be
able to hear the tuning fork next to the pinna (outer ear) after they can no longer hear it
when held against the mastoid. during the RHinnes test
proprioceptors CORRECT ANSWERS send sensory info to the brain regarding the
tension of the skeletal muscles and the positions of the limbs
the special senses are CORRECT ANSWERS vision
taste
, olfaction
hearing
equilibrium
reflex arc CORRECT ANSWERS fundamental pathway linking sensory input and motor
output
nerve cells in a monosynaptic reflex CORRECT ANSWERS afferent (sensory) neuron
efferent (motor) neuron
cutaneous reflex- Babinski reflex CORRECT ANSWERS elicited by stimulation of
cutaneous receptors in the sole of the foot, it is integrated not in the spinal cord, but in
the brain
normal response causes flexion (down) of big toe while other toes flex and come
together
pupillary light reflex CORRECT ANSWERS reflex is consensual; the stimulus on one
side produce a response on both sides
corneal blink reflex CORRECT ANSWERS consensual
menace reflex CORRECT ANSWERS not controlled by higher centers
motor unit CORRECT ANSWERS single motor neurone and all of the skeletal muscles
that it controls
ratio of muscle cells to motor neurons CORRECT ANSWERS low
gives ability to control its motions precisely
vertical axis of eye muscles CORRECT ANSWERS medial rectus- addcuts
lateral rectus- abducts
horizontal eye muscles CORRECT ANSWERS superior rectus- elevates and intorts
inferior rectus- depresses anad extorts
torsional eye muscles CORRECT ANSWERS superior oblique muscle- intort with slight
depression
inferior oblique muscle- extort with slight elevation
these muscles are innervated by motor neurone that have electrical activity with a
________ component that controls the position of the eye and a _______ component
that controls velocity CORRECT ANSWERS tonic
phasic
eye velocity commands are sent along a _____ path from specialized brain formations
or fields to the motor neurons CORRECT ANSWERS direct
