16. Muscle Flashcards
1
Q
The Length-Tension Relationship:
A
2
Q
What is The Sarcomere?
A
Interactions of the actin and myosin filaments with each other determine the active tension developed in the sarcomere
3
Q
What are the 3 Types of Muscle Arrangements?
A
- Parallel
- Convergent
- Pennate
4
Q
What is the Parallel Arrangement of Muscle?
A
- Long fibers acting over a great distance
- Aren’t that strong but high in endurance
5
Q
What is the Convergent Arrangement of Muscle?
A
- The fibers converge at the insertion point to maximize the muscle action
- Provides increased strength
6
Q
What is the Pennate Arrangement of Muscle?
A
- Fibers span short distances in feather- like arrangement
- Strongest fascicle arrangement
- Can be Unipennate, Bipennate or Multipennate
7
Q
How does Body Temperature affect Muscle force and velocity for Concentric Actions?
A
Higher Maximum Isometric Tension and higher Maximum Velocity of shortening is possible at a given load at warmer temperatures
8
Q
ON FINAL EXAM
What factors affect the force generating capabilities of a muscle?
A
- Muscle Fiber Type (fast vs slow)
- Cross-Sectional Area
- Muscle Length
- History of Activation
- Motor Units Recruited
- Temperature
- Contractile Velocity
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9
Q
Trivia
Example of Unipennate Muscle
A
Example of Bipennate Muscle
10
Q
Who Gives a Darn About this Stuff?
A
