Explore
Post homework questions online and get free homework help from tutors.
Learn More
Improve Grades
Help Others
Save Time
Accessible 24/7
  195 People Browsing
Related Images
 5388
 404
 393
Poll
Do you believe in love at first sight?
Yes
No
If you would like to vote in this poll, please login or register

Previous poll results: Which test writing hack do you use?
  
wrote...
Posts: 5
Rep: 0 0
5 years ago
Having troubles with the review questions, What happens to the amount of total force the muscle generates during the stimulation twitch? how well did the results compare with your prediction?  I predicted total force can increase or decrease depending upon the starting resting length. It looks like it decreased not matter if the muscle was stretched or shortened, but the passive force rose with increasing the length of muscle?

What is the key variable in an isometric contraction of a skeletal muscle? I put down " the muscle stays at a fixed length"?

also would like help with 3rd 4th and 5th questions as well, Exercise 2, activity 6, or all of this exercise to see if my answers are correct up to now...
   
  Thank You for you time
Source  PhysioEx 9.0  Exercise 2
Read 17938 times
3 Replies
wrote...
5 years ago
The length-tension relationship. The passive force is important in determining the active force produced.

What is the key variable in an isometric contraction of a skeletal muscle? I put down " the muscle stays at a fixed length"?
✓ Follow us on Twitter and Thumbs Up Sign like our awesome Facebook Page Slight Smile
Answer verified by a subject expert
wrote...
Donated
Valued Member
Posts: 466
5 years ago
To view this post and more
You'll need to login or register
lordbeelzebub3
Having troubles with the review questions, What happens to the amount of total force the muscle generates during the stimulation twitch? how well did the results compare with your prediction?  I predicted total force can increase or decrease depending upon the starting resting length. It looks like it decreased not matter if the muscle was stretched or shortened, but the passive force rose with increasing the length of muscle?

What is the key variable in an isometric contraction of a skeletal muscle? I put down " the muscle stays at a fixed length"?

also would like help with 3rd 4th and 5th questions as well, Exercise 2, activity 6, or all of this exercise to see if my answers are correct up to now...
   
  Thank You for you time
 
My class did not have to do this lab, but I dug these up...

Review Sheet Results
1. What happens to the amount of total force the muscle generates during the stimulatedtwitch? Increased with increase in muscle length up until 80ml where the force peak and declineat higher length

2. What is the key variable in an isometric contraction of a skeletal muscle? Muscle length

3. Based on the unique arrangement of myosin and actin in skeletal muscle sarcomeres, explainwhy active force varies with changes in the muscle's resting length. Active force varies withlength, because with small length there is a lot of exhchange between actin and myosin

4. What skeletal muscle lengths generated passive force?Neutral Face??

5. If you were curling a 7-kg dumbbell, when would your bicep muscles be contractingisometrically? Biscep is contracting isometriclly when arm extended fully downward and theholding weight up down for the initiation of upward width
Volunteers are seldom paid; not because they are worthless, but because they are PRICELESS!
wrote...
5 years ago
Thanks for the help...i hate these labs!
      
Share This Topic
Similar topics that might interest you...
Health, Nutrition, and Food Sciences   A year ago   Guilia   tamrov   3 Replies   115 Views
Health, Nutrition, and Food Sciences   A year ago   Guilia   tamrov   3 Replies   120 Views
Anatomy and Physiology   A year ago   Beanieman   ch1990   3 Replies   94 Views
Anatomy and Physiology   8 months ago   Cali Fornia   2 Replies   48 Views
This topic is currently locked from adding new posts. Only administrators and moderators can reply. If you'd like to contribute to this topic, start a new thread and make reference to this one. Otherwise, contact a moderator for more options.