Question

The application of a suprathreshold stimulus results in... a) greater amplitude of the action potential b)...

The application of a suprathreshold stimulus results in...

a) greater amplitude of the action potential
b) both a greater magnitude and more rapid propogation of the action potential
c) more rapid propogation of the action potential
d) no change to the action potential
Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

The application of a suprathreshold stimulus results in

b)  both a greater magnitude and more rapid propogation of the action potential

If a stimulus is greater than threshold stimulus, it enhances the frequency of action potentials. Suprathreshold stimulus are large in magnitude, and thus bring out action potential in excitable cells. Generally, it can causes depolarization of the membrane, and the magnitude of the depolarization is much greater than what is necessary.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A larger stimulus is associated with (select all that apply): A) Action potentials with a larger...
A larger stimulus is associated with (select all that apply): A) Action potentials with a larger amplitude B) Increased action potential frequency C) A larger generator potential D) Decreased threshold
11-When the nerve fiber is stimulated with stimulations of increasing intensities: a- Amplitude of action potential...
11-When the nerve fiber is stimulated with stimulations of increasing intensities: a- Amplitude of action potential remains zero as the intensity of stimulation increases above threshold value. b- Amplitude of action potential reaches its maximum value at threshold and remains constant. c- Frequency of action potential remains constant. d- Frequency of action potential increases e- None of the above
The stronger the stimulus applied to a receptor ending: The larger the number of ion channels...
The stronger the stimulus applied to a receptor ending: The larger the number of ion channels opened in the re-membrane The larger the magnitude of the re-membrane depolarization The larger the frequency pf action potentials generated in the receptor axon The greater the amplitude of the action potential Greater pain will be perceived by the brain, due to maximal frequency of action potentials 1,2,3,5 1 1,3 1,2,3,4
how did the action potential at R1 or R2 change as you increased the stimulus voltage...
how did the action potential at R1 or R2 change as you increased the stimulus voltage above the threshold voltage
• What happened to the ISI and action potential frequency as the stimulus voltage was increased?
• What happened to the ISI and action potential frequency as the stimulus voltage was increased?
17. What is true of Action Potentials (APs): (A) The stronger the AP initiating stimulus, the...
17. What is true of Action Potentials (APs): (A) The stronger the AP initiating stimulus, the higher the voltage will be generated by the AP during the depolarization phase (increasing voltage to +30mV, +40mV, +50mV, etc.). (B) Always involve sequences of membrane voltage changes: resting state (maintaining at -70mV), threshold (-55mV), depolarization (increasing to +30mV), repolarization (decreasing to -70mV), and hyperpolarization (decreasing below -70mV). (C) After AP initiation, the relative refractory period is the time when the cell cannot respond...
Q1. The PR interval represents: A. The action potential Pleateau B. The duration of the action...
Q1. The PR interval represents: A. The action potential Pleateau B. The duration of the action potential C. Ventricle refractory period D. Crossing over the AV node Q2. The electrical axis of the heart corresponds to: A. The conduction of the heart B. The cardiac contractile cell action potential C. The cardiac nodal cell action potential D. The orientation of the heart Q3. Which of the following is not a type of cardiac cell? A. Myoblast B. Nodal Cell C....
a) Draw an action potential for a cardiac autorhythmic cell with hypercalcemia. b) Draw an action...
a) Draw an action potential for a cardiac autorhythmic cell with hypercalcemia. b) Draw an action potential for a myocardial contractile cell with a 20% reduction in Na+/k+ ATPase activity. c) Draw how this cycle would change if you administered a positive isotopic agent, would this cycle change if you administered a positive chronotropic agent?
Which of the following allows the cell to recover from hyperpolarization during an action potential? A....
Which of the following allows the cell to recover from hyperpolarization during an action potential? A. Stimulus gated sodium channels B. Voltage gated sodoum channels C. Voltage gated potassium channels D. Sodium/ Potassium pump
best definition of action potential? A: a wave of electrical excitation that travels without signal weakening...
best definition of action potential? A: a wave of electrical excitation that travels without signal weakening B: passive spread of an electrical signal C: signal that travels only extremely short distances, from one ion channel to the next best definition of the resting membrane potential? A: steady-state condition in which there is no net change in electrical potential difference across a membrane B: membrane potential when a person is laying down, always lower because of changes in blood pressure C:...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT