Which statement about striated skeletal muscle is true? A. The tension generated by a muscle is invariable. B. Mechanical summation of twitches in a muscle fiber leads to a graded increase in the tension that is above that generated by a single twitch. C. A single action potential arriving at the neuromuscular junction is not sufficient to cause a muscle fiber to twitch. D. Muscle twitches are able to mechanically sum when Ca2+ is quickly and completely removed from the sarcoplasm between action potentials. E. An action potential in the muscle cell activates contraction by releasing Na+ into the sarcoplasm.
Which statement about striated skeletal muscle is true? A. The tension generated by a muscle is invariable. B. Mechanical summation of twitches in a muscle fiber leads to a graded increase in the tension that is above that generated by a single twitch. C. A single action potential arriving at the neuromuscular junction is not sufficient to cause a muscle fiber to twitch. D. Muscle twitches are able to mechanically sum when Ca2+ is quickly and completely removed from the sarcoplasm between action potentials. E. An action potential in the muscle cell activates contraction by releasing Na+ into the sarcoplasm.
Concepts of Biology
1st Edition
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:Samantha Fowler, Rebecca Roush, James Wise
Chapter16: The Body's System
Section: Chapter Questions
Problem 22RQ: Which component is responsible for initially stimulating a muscle contraction? a. proteins b....
Related questions
Question
Which statement about striated skeletal muscle is true?
A. |
The tension generated by a muscle is invariable. |
|
B. |
Mechanical summation of twitches in a muscle fiber leads to a graded increase in the tension that is above that generated by a single twitch. |
|
C. |
A single action potential arriving at the neuromuscular junction is not sufficient to cause a muscle fiber to twitch. |
|
D. |
Muscle twitches are able to mechanically sum when Ca2+ is quickly and completely removed from the sarcoplasm between action potentials. |
|
E. |
An action potential in the muscle cell activates contraction by releasing Na+ into the sarcoplasm. |
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Recommended textbooks for you
Concepts of Biology
Biology
ISBN:
9781938168116
Author:
Samantha Fowler, Rebecca Roush, James Wise
Publisher:
OpenStax College
Concepts of Biology
Biology
ISBN:
9781938168116
Author:
Samantha Fowler, Rebecca Roush, James Wise
Publisher:
OpenStax College