Explain why glucose shows up in the urine of diabetics
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Carrier saturation in the kidney. Normally, carriers reabsorb all the glucose
from the forming urine, and therefore, there is no glucose in the urine of a
normal person. In diabetes, there's too much glucose for the carriers to
handle.
Define excitability
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The ability to produce electrical signals
,Carrier molecules in the cell membrane are __________
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Proteins
If the canal of schlemm were blocked (so that aqueous humor was not absorbed at
the same rate is was produced), intracellular pressure would increase and cause
________
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Glaucoma
Explain why an action potential is all or none
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Once threshold is reached, the events are the same. Once the "trigger is
pulled" and sets the events in motion, it must go full strength.
Tonic and phasic receptors are _________ in terms of adaptation, and therefore, what kind
of information their sensory neurons take to the CNS
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, Different
Homeostasis is
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A dynamic steady state
Food molecules must be in ___________ to stimulate the taste bud receptor cells
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Solution
Describe somatic receptors
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Located over the body; includes receptors in muscle (muscle stretch
receptor or muscle spindle), receptors in tendons, receptors in skin
Describe how an action potential is triggered in the afferent neuron
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, Current flow caused by the local (graded) receptor potential triggers an
action potential if it brings membrane next to receptor to threshold.
True or false: The membraneous labyrinth is located in the middle ear
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False; inner
Describe the correction for astigmatism
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Lenses that compensate for the irregular shape
Explain the function of carbohydrates
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Bound on outer surface; helps cells identify own type
Imagine you could suddenly decrease Na+ permeability in a resting nerve cell. Due to
the decrease in Na+ permeability the nerve cell would
A) depolarize
B) hyperpolarize
C) have an action potential
Give this one a try later!
Carrier saturation in the kidney. Normally, carriers reabsorb all the glucose
from the forming urine, and therefore, there is no glucose in the urine of a
normal person. In diabetes, there's too much glucose for the carriers to
handle.
Define excitability
Give this one a try later!
The ability to produce electrical signals
,Carrier molecules in the cell membrane are __________
Give this one a try later!
Proteins
If the canal of schlemm were blocked (so that aqueous humor was not absorbed at
the same rate is was produced), intracellular pressure would increase and cause
________
Give this one a try later!
Glaucoma
Explain why an action potential is all or none
Give this one a try later!
Once threshold is reached, the events are the same. Once the "trigger is
pulled" and sets the events in motion, it must go full strength.
Tonic and phasic receptors are _________ in terms of adaptation, and therefore, what kind
of information their sensory neurons take to the CNS
Give this one a try later!
, Different
Homeostasis is
Give this one a try later!
A dynamic steady state
Food molecules must be in ___________ to stimulate the taste bud receptor cells
Give this one a try later!
Solution
Describe somatic receptors
Give this one a try later!
Located over the body; includes receptors in muscle (muscle stretch
receptor or muscle spindle), receptors in tendons, receptors in skin
Describe how an action potential is triggered in the afferent neuron
Give this one a try later!
, Current flow caused by the local (graded) receptor potential triggers an
action potential if it brings membrane next to receptor to threshold.
True or false: The membraneous labyrinth is located in the middle ear
Give this one a try later!
False; inner
Describe the correction for astigmatism
Give this one a try later!
Lenses that compensate for the irregular shape
Explain the function of carbohydrates
Give this one a try later!
Bound on outer surface; helps cells identify own type
Imagine you could suddenly decrease Na+ permeability in a resting nerve cell. Due to
the decrease in Na+ permeability the nerve cell would
A) depolarize
B) hyperpolarize
C) have an action potential
