Podcast
Questions and Answers
Which characteristic is NOT associated with muscle elasticity?
Which characteristic is NOT associated with muscle elasticity?
- The capability to shorten forcefully when stimulated. (correct)
- The property of muscles that allows them to respond to stimulus.
- The capacity to extend when subjected to a pulling force.
- The ability to return to its original length after being stretched.
Which of the following statements best describes the defining characteristic of skeletal muscle?
Which of the following statements best describes the defining characteristic of skeletal muscle?
- Skeletal muscle cells have no striations and are under involuntary control.
- Skeletal muscle is found in the heart, is striated, and under involuntary control to function in pumping blood.
- Skeletal muscle is composed of very long, cylindrical cells with multiple nuclei and is primarily under voluntary control. (correct)
- Skeletal muscle cells are short and spindle-shaped, containing a centrally located nucleus and involuntary control.
If a muscle is no longer able to recoil to its original length after being stretched, which property is the muscle lacking?
If a muscle is no longer able to recoil to its original length after being stretched, which property is the muscle lacking?
- Elasticity (correct)
- Excitability
- Contractility
- Conductivity
Considering the differences between muscle types, which action would be MOST affected by a dysfunction in smooth muscle?
Considering the differences between muscle types, which action would be MOST affected by a dysfunction in smooth muscle?
Which of the following characteristics differentiates cardiac muscle from both skeletal and smooth muscle?
Which of the following characteristics differentiates cardiac muscle from both skeletal and smooth muscle?
Which two factors primarily contribute to muscle fatigue?
Which two factors primarily contribute to muscle fatigue?
What does ATP stand for in the context of muscle physiology?
What does ATP stand for in the context of muscle physiology?
What physiological process does 'contractility' refer to in the context of muscle tissue.
What physiological process does 'contractility' refer to in the context of muscle tissue.
In the context of muscle physiology, what does 'excitability' refer to?
In the context of muscle physiology, what does 'excitability' refer to?
What characteristic defines 'extensibility' in the context of muscle tissue?
What characteristic defines 'extensibility' in the context of muscle tissue?
If a patient is experiencing muscle fatigue, which of the following interventions would be MOST effective in immediately improving muscle function?
If a patient is experiencing muscle fatigue, which of the following interventions would be MOST effective in immediately improving muscle function?
A patient reports persistent muscle cramping. Which of the following is the MOST likely underlying cause related to muscle function?
A patient reports persistent muscle cramping. Which of the following is the MOST likely underlying cause related to muscle function?
During prolonged exercise, muscles generate heat. What physiological mechanism helps dissipate this heat to maintain body temperature?
During prolonged exercise, muscles generate heat. What physiological mechanism helps dissipate this heat to maintain body temperature?
Flashcards
Muscle Elasticity
Muscle Elasticity
The ability of a muscle to be stretched.
Muscle Recoil
Muscle Recoil
The ability of a muscle to recoil or bounce back to its original length after being stretched.
Muscle Contractility
Muscle Contractility
The ability of a muscle to forcefully shorten.
Muscle Excitability
Muscle Excitability
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Sarcomere
Sarcomere
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Muscle Fatigue
Muscle Fatigue
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ATP
ATP
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Normal Body Temperature Range
Normal Body Temperature Range
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Muscle Stretchability
Muscle Stretchability
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Contractility
Contractility
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Excitability
Excitability
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Extensibility
Extensibility
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Elasticity
Elasticity
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Study Notes
- This handbook is to be used with a lecture and PowerPoint presentation on the Introduction to Muscle.
- The PowerPoint presentation covers: the histology of muscle, how a muscle gets its fuel, functions of muscle, movement and levers, heat production, muscle tone and fatigue, and properties of muscle
Learning Outcomes
- Identify the classification of muscle tissue.
- Describe the functions of muscle.
- Compare muscle types.
Assessment Part 1
- List 2 factors that result in muscle fatigue.
- What does ATP stand for?
- Possible answers:
- Association of tennis professionals
- Advanced Threat Protection
- Adenosine Thriphosphate
- Adenosine Triphosphate
- Advanced Passenger Train
- Possible answers:
- State the normal healthy temperature range.
- How many times can a muscle be stretched without rupturing?
Match the word with its correct definition
- Contractility: Ability of a muscle to forcefully shorten
- Excitability: The ability to respond to a stimulus
- Extensibility: The ability for a muscle to be stretched
- Elasticity: The ability for the muscle to recoil or bounce back to its original length after being stretched
- Name the opposite partners to Prime Movers
Assessment Part 2
- Define a Myofibril
- Define a Sarcomere
- State 5 functions of muscle
Table Summary
- Skeletal muscle cell shape is very long and cylindrical, 40mm-35 cm in length, 0.02–0.08mm in diameter.
- Cardiac Muscle located in heart
- Cardiac Muscle has has single, centrally located nucleus
- Striations are present in Cardiac and Skeletal muscles
- Control of cardiac muscle is Involuntary
- Function of cardiac muscle is to pump blood
- Smooth muscles have no Striations
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