PhysioEx Exercise 3 quiz with 100% Correct Answers
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Course
PhysioEx
Institution
PhysioEx
PhysioEx Exercise 3 quiz with 100% Correct Answers
What is the approximate concentration of K+ inside a typical cell? -
Answer️️ -150mM
What is the approximate concentration of Na+ inside a cell? - Answer️️ -
5mM
What is the approximate concentration of Na+ outside a cell? - Answer️�...
Which of the following is a sensory modality? - Answer✔️✔️-all of the above
(touch, smell, sight, & paint)
which of the following is a sensory stimulus? - Answer✔️✔️-all of the above
( pressure, chemical odorants & light)
Which of the following is true of the response of a sensory neuron to the
appropriate sensory stimulus? - Answer✔️✔️-it can be a receptor potential &
it is a graded potential AND it is a change in the resting membrane
potential
A very intense stimulus can sometimes stimulate sensory neurons that
have evolved for a different modality. Thus, with a blow to the eye, one
"sees stars". In this example, the photoreceptors in the eye are responding
to - Answer✔️✔️-intense pressure
Olfactory receptor neurons respond to low concentrations of chemical
odorants because there are membrane proteins in the receptor ending of
this sensory neuron that - Answer✔️✔️-can bind and respond to the specific
odorant
The sequence of events starting with a sensory stimulus and ending with a
change in membrane potential is called - Answer✔️✔️-sensory transduction
2
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