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Sports Medicine Board > Exercise Physiology > Flashcards

Exercise Physiology Flashcards

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Sports Trivia flashcards
1
Q

___mysium surrounds individiual cells.

A

Endomysium

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2
Q

___mysium surrounds muscle fasicles.

A

Perimysium

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3
Q

___mysium covers outer segments of muscle

A

Epimysium

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4
Q

MUSCLE CONTRACTION

Actin attaches to the what line?

Myosin attaches to what line?

A

Actin- Z ine

Myosin- M line

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5
Q

MUSCLE CONTRACTION

The __ Band contains actin and myosin

The __ Band contains only actin

A

A Band

I band

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6
Q

What is the H Zone?

What parts of the sacromere get smaller during contraction?

A

Middle of the A band that only contains myosin

H zone

I band

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7
Q

How many ATP to produce full muscle contraction?

A

2 ATP

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8
Q

Type IIa

A
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9
Q

Type IIx

A

fast twitch glycolytic

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10
Q

Exception to the Henneman Size Principle

A
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11
Q

Which energy system predominates in 1-3 min range?

How many ATP produced?

A

Anaerobic

2 ATP from glycolysis

3 ATP from glycogen

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12
Q

What is the rate limiting step in glycolysis?

A

the catalyst phospofructose kinase

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13
Q

Main energy source for last than 30 seconds

A

ATP-phosphcreatine

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14
Q

Main energy source greater than 3 minutes

A

Aerobic

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15
Q

In aerobic energy system the byproduct of Krebs

is ____. The byproduct of electron transport chain is _____.

A

CO2

WATER

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16
Q

Net ATP from glycolysis

Net ATP from glycogen

A

38

39

17
Q

Which substrate (glucose or Fat) nets the highest ATP?

A

Fat=129 ATP

18
Q

Increase Cardiac Output at low to moderate intensity exercise is a result of what?

A

SV and HR increasing

19
Q

Increase Cardiac Output at high intensity exercise is a result of what?

A

Heart Rate only due to Stroke volume as a result of cardiac drift.

Cardiac Drift- during prolonged exercise their is a gradual incrase in HR and decrease in SV due to lesser diastolic filling.

20
Q

How is oxygen consumption (VO2) trainable?

VO2 has direct linear releationship with ___?

A

With better conditioning (lower resting HR and Increase SV) athletes can increase lactate threshold thereby staying in aerobic respiration.

CO

21
Q

How does GH and Testosterone respond to both anaerobic and aerobic exercise?

A

Testosterone increases with anereobic

GH increases with both aerobic and anaerobic.

Sports Medicine Board (10 decks)

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