BIOL 5600 Lab Midterm Exam
Questions with Complete Verified
Solutions.
Which component of the motor unit does lidocaine directly affect? - Answer Lidocaine
stabilizes the lipid bilayer and makes it more rigid which makes it harder for channels to open
and makes it difficult to generate action potentials.
Which component of the motor unit does d-tc directly affect? - Answer D-turbocurare (d-tc)
binds to the N2 receptor to block Ach from binding and as a result hinders action potential
transmission.
The opening of what ion channels cause action potentials? - Answer Na+ (sodium channels)
What causes a contraction when the nerve is pinched? - Answer A pinched nerve = mechanical
stimulus. This disrupts the membrane and causes an influx of Na+ which then generates an
action potential.
Where do you add lidocaine? - Answer To the sciatic nerve.
What are the three components of the recording channel? - Answer Sensory device,
processor, transducer
What are the three components of an electrical stimulus? - Answer Duration, intensity,
frequency
What does the transducer do? - Answer Converts mechanical energy into electrical energy
Why is it important to balance and calibrate the BIOPAC? - Answer Sets it to zero and
synchronizes the signal
What is the recording oscillograph? - Answer An instrument that produces a permanent
record of physiological events
Questions with Complete Verified
Solutions.
Which component of the motor unit does lidocaine directly affect? - Answer Lidocaine
stabilizes the lipid bilayer and makes it more rigid which makes it harder for channels to open
and makes it difficult to generate action potentials.
Which component of the motor unit does d-tc directly affect? - Answer D-turbocurare (d-tc)
binds to the N2 receptor to block Ach from binding and as a result hinders action potential
transmission.
The opening of what ion channels cause action potentials? - Answer Na+ (sodium channels)
What causes a contraction when the nerve is pinched? - Answer A pinched nerve = mechanical
stimulus. This disrupts the membrane and causes an influx of Na+ which then generates an
action potential.
Where do you add lidocaine? - Answer To the sciatic nerve.
What are the three components of the recording channel? - Answer Sensory device,
processor, transducer
What are the three components of an electrical stimulus? - Answer Duration, intensity,
frequency
What does the transducer do? - Answer Converts mechanical energy into electrical energy
Why is it important to balance and calibrate the BIOPAC? - Answer Sets it to zero and
synchronizes the signal
What is the recording oscillograph? - Answer An instrument that produces a permanent
record of physiological events
