Facts Flashcards

1
Q

“What is the primary site where muscle contraction occurs according to the sliding filament theory, and what process enables myosin to pull actin filaments during muscle contraction?”

A

myofibril. During muscle contraction, myosin attaches to actin filaments and pulls them by ATP, generating the force necessary for muscle movement. This process involves the sliding of actin and myosin filaments past each other, leading to muscle shortening (concentric ) or lengthening (eccentric) depending on external forces applied to the muscle.

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2
Q

What are fast twitch fibers like

A

Fatigue fast but are high force productions like in sprints

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3
Q

What can you say about slow twitch

A

Good for endurance but low force production , ex is marathon runners

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4
Q

What will increase force production

A

Increase in cross sectional area of muscle fibers

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5
Q

What can you say about muscle fibers #

A

The more one possess the more force production they create

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6
Q

Rate of stimuli …

A

Is where brain sends twitch to muscle , the more twitches stack together build more force to point of max of

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7
Q

True or false . Brain stimulus muscles to contract

A

True

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8
Q

What can you say about fiber recruitment ?

A

It starts slow but increases once it sees more force is needed

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9
Q

What has an indirect relations with force , max force is used slowest

A

Concentric

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10
Q

What had an direct relationship with force , and velocity down

A

Eccentric

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11
Q

True or false. As force goes up velocity goes down but when force goes down velocity goes up ?

A

True

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