Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove Ads
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how


Receptors, Reflex Arc. Etc

What are 3 characteristics of the Reflex Arc? 1. Simplest Functional Circuit of the NS; 2. does NOT involve the Brain; 3. produces an Immediate, INVOLUTARY motor response to stimuli
What are the components of the Reflex Arc? 1. Receptor; 2. Sensory Neuron; 3. Interneuron (optional); 4. Motor Neuron; 5. Effector (muscle or gland)
What is the function of Receptors? REPOND to SPECIFIC environmental energy forms (stimuli), internal or external
What are the different Receptors? 1. Photoreceptors; 2. Acoustic Receptors; 3. Mechanoreceptors; 4. Chemoreceptors; 5. Thermoreceptors
What is the function of Receptor Potentials? to Stimulate AP's
name a Mechanoreceptor sensitive to pressure. Pacinian Corpuscle
How is a stimulus transformed into an Electrical Response? 1. Membrane Distortion; 2. increased permeability to ALL Ions; 3. Receptor Potential; 4. AP's propagated from 1st Node
How long are AP's propagated from a Receptor? until Sensory receptor REPOLARIZES
What is a Receptor Potential? localized Depolarization
What are 3 characteristics of Receptor Potentials? 1. NOT all-or-none, GRADED Amplitude; 2. duration = Duration of Stimulus; 3. NOT propagated to CNS, only to 1st Node
What determines AP Frequency? Stimulus INTENSITY
What determines Sensory AP Frequency? Receptor Potential AMPLITUDE
What is the definition of Receptor Adaptation? a DECREASE in Sensory AP Frequency despite an UNCHANGING environmental Stimulus
What is the function of Receptor Adaptation? enables the CNS to devote attention to IMPORTANT/Changing Stimuli
Which Receptors do not adapt? Pain receptors
Name 2 examples of Fast Adapting Receptors. Pacinian Corpuscles, Smell
Name 2 Slow Adapting Receptors. Kinesthetic, Pain
How do Fast/Slow Adapting Receptors work? by Increasing or Decreasing AP Frequency despite unchanging environmental stimulus
Created by: Kristel