Muscle Fibers Explained - Muscle Contraction and Muscle Fiber Anatomy – YouTube Dictation Transcript & Vocabulary
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Interactive Transcript & Highlights for Dictation
1.Muscles are the driving force of all the in the body, varying from lifting, running, walking, and even organ function
2.The muscular system of three major muscle types: cardiac muscles, which are responsible for the function of your heart, smooth muscles, which are responsible for the function of all your other organs, and skeletal muscles, which are responsible for, as the name suggests, the movement of your bones
3.Both smooth and cardiac muscles function involuntarily, meaning they operate by themselves
4.Skeletal muscles, on the other hand, function voluntarily and are under our conscious control
5.There are three different skeletal muscle fiber types known as Type I, IIa, and IIx fibers
💡 Tap the highlighted words to see definitions and examples
Key Vocabulary (CEFR C2)
primarily
A2(focus) Of a primary or central nature, first and foremost
Example:
"do you primarily train? Leave your answers in the comment section below!"
movements
A2Physical motion between points in space.
Example:
"Muscles are the driving force of all the movements"
contracting
B1To draw together or nearer; to shorten, narrow, or lessen.
Example:
"of oxygen and glucose, as sources of energy. This combination allows for quicker contracting"
extremely
A2(degree) To an extreme degree.
Example:
"extremely high levels of glucose in its stored form of glycogen, producing the fastest twitch"
fatigue-resistant
B1A B1-level word commonly used in this context.
Example:
"fatigue-resistant Type I fibers are always activated first. When Type I fibers are maxed"
activties
A2A A2-level word commonly used in this context.
Example:
"born with a predominant amount of a certain muscle fiber, making them effective with activties"
consists
A2To be.
Example:
"system consists of three major muscle types: cardiac muscles, which are responsible for"
answers
A2A response or reply; something said or done in reaction to a statement or question.
Example:
"do you primarily train? Leave your answers in the comment section below!"
comment
B2A spoken or written remark.
Example:
"do you primarily train? Leave your answers in the comment section below!"
section
B2A cutting; a part cut out from the rest of something.
Example:
"do you primarily train? Leave your answers in the comment section below!"
| Word | CEFR | Definition |
|---|---|---|
| primarily | A2 | (focus) Of a primary or central nature, first and foremost |
| movements | A2 | Physical motion between points in space. |
| contracting | B1 | To draw together or nearer; to shorten, narrow, or lessen. |
| extremely | A2 | (degree) To an extreme degree. |
| fatigue-resistant | B1 | A B1-level word commonly used in this context. |
| activties | A2 | A A2-level word commonly used in this context. |
| consists | A2 | To be. |
| answers | A2 | A response or reply; something said or done in reaction to a statement or question. |
| comment | B2 | A spoken or written remark. |
| section | B2 | A cutting; a part cut out from the rest of something. |
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