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CBM > Week 2 Revision (switch with PAE Wk2) > Flashcards

Week 2 Revision (switch with PAE Wk2) Flashcards

1
Q

what do the motor neurons do when they reach the muscle?

A

Contract

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2
Q

what do the sensory neurons do when they reach the CNS?

A

provide feedback about tension, position and length of muscle

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3
Q

What does the cross-bridge theory try to do?

A

Contraction within a muscle

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4
Q

In the cross-bridge theory, what are the two main characters?

A

thin myosin and thick actin

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5
Q

In the cross-bridge theory, what causes the myosin to pull on the actin?

A

the release of ADP and Pi

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6
Q

What occurs when the maximum number of cross-bridges are present within a muscle fibre?

A

The greatest force is seen

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7
Q

what is meant by open-chained movement?

A

Where the distal end of a limb is able to move freely (ef. kicking a soccer ball)

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8
Q

What happens within the stretch-shortening cycle?

A

contraction (eccentric/concentric), followed by a rapid contraction (eccentric/concentric)

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9
Q

How can an anatomical cross-sectional area be identified?

A

The muscle fibres that are perpendicular to the logitundal axis

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10
Q

What is meant by fascicle length?

A

Length of the muscle fibres between superficial and deep layer

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11
Q

What is the pennation angle?

A

the angle between the longitudinal axis and the fibres

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12
Q

What type of twitch are type 1 muscle fibres?

A

Slow

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13
Q

What type of activity do type 2 muscle fibres do?

A

Short, high intensity

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14
Q

what type of fibre is responsible for anaerobic fitness?

A

Type 2

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15
Q

What type of fibre fatigues quickly?

A

Type 2

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16
Q

What type of fibre has fewer motor units?

A

Type 1

17
Q

Is the ATP PC System anaerobic or aerobic?

A

Anaerobic

18
Q

What is the time frame for Anaerobic glycolysis?

A

45seconds - 2 mins

19
Q

What cell is seen most in the oxidative pathway?

A

Mitochondria

20
Q

Are motor units all or none?

A

Yes

21
Q

What is meant by rate coding of motor units?

A

more frequent rates of firing

22
Q

What is Wolff’s theory?

A

Bone remodels depending on the force upon it

23
Q

What does ligament connect?

A

Bone to bone

24
Q

What does tendon connect?

A

bone to muscle

25
Q

Where is cartlidge found?

A

synovial joints

26
Q

What is the normative threshold of heart rate

A

60-100 beats per min

27
Q

What is stroke volume?

A

the volume of blood pumped out of the left ventricle per heartbeat (normative value is 70mL)

28
Q

What is cardiac output?

A

the amount of blood pumped out of the heart per min (5L)

29
Q

What is the normative value for blood pressure?

A

120/80

30
Q

What is VO2 Max?

A

the maximum amount of O2 used during exercise

31
Q

What is AVO2 difference?

A

the difference in O2 in arterial and venous blood during exercise

CBM (5 decks)

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