Other
Bio 170:PhysioEx Exercise 2 Activity 3 Lab Report.
- Course
- BIO 170
- Institution
- Farmingdale State College
Exercise 2: Skeletal Muscle Physiology Activity 3: The Effect of Stimulus Frequency on Skeletal Muscle Contraction lab report.
[Show more]
Content preview
11/2/2020 PhysioEx Exercise 2 Activity 3PhysioEx Lab Report
Exercise 2: Skeletal Muscle Physiology
Activity 3: The Effect of Stimulus Frequency on Skeletal Muscle Contraction
Name: Sarah Rodriguez
Date: 2 November 2020
Session ID: session-ca7d4a1f-8536-c1d5-b65a-2fadaafc565e
Pre-lab Quiz Results
You have not completed the Pre-lab Quiz.
Experiment Results
Predict Questions
1 Predict Question 1: As the stimulus frequency increases, what will happen to the muscle
force generated with each successive stimulus? Will there be a limit to this response?
Your answer: As the stimulus frequency increases, the muscle force generated by each
successive stimulus will increase. There will be a limit to this increase.
2 Predict Question 2: In order to produce sustained muscle contractions with an active force
value of 5.2, do you think you will need to increase the stimulus voltage?
Your answer: Yes.
Stop & Think Questions
1 Was there any change in the force generated by the muscle during the second stimulated
twitch?
You correctly answered: Yes, the second twitch generated more muscle force.
2 Is the total muscle force generated by the higher frequency stimulation greater than the
force generated in previous stimulations?
You correctly answered: Yes, it is greater than the previous stimulations.
3 Does the force generated by the muscle change with each additional stimulus?
You correctly answered: As the stimulus frequency increased, the muscle tension generated
by each successive stimulus also increased, and a limiting maximum value was observed.
Experiment Data
Voltage (v) Length (mm) Stimulus Active Force Passive Force Total Force
i
8.5 75 Single 1.83 0.0 1.83
https://media.pearsoncmg.com/bc/bc_0media_ap/physioex/10/ex2/act3/ 1/5
, 11/2/2020 PhysioEx Exercise 2 Activity 3
8.5 75 Multiple 2.87 0.0 2.87
8.5 75 Multiple 3.23 0.0 3.23
8.5 75 Multiple 4.81 0.0 4.81
10 75 Multiple 4.48 0.0 4.48
8.5 75 Multiple 5.65 0.0 5.65
Voltage = 8.5 V
Single Stimulus
Active Force = 1.83
Voltage = 8.5 V
Multiple Stimulus
Active Force = 2.87
Voltage = 8.5 V
Multiple Stimulus
Active Force = 3.23
i
https://media.pearsoncmg.com/bc/bc_0media_ap/physioex/10/ex2/act3/ 2/5
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller anyiamgeorge19. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75323 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now