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Anatomy > Muscle Physiology > Flashcards

Muscle Physiology Flashcards

1
Q

What are the 3 types of muscle?

Like the tissues

A
  1. skeletal
  2. cardiac
  3. smooth
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2
Q

What are the defining characteristics of skeletal muscle?

A
  • attached to bone
  • cannot initiate without motor neuron
  • striated
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3
Q

What are the defining characteristics of cardiac muscle?

A
  • in heart
  • branched cells
  • visible striations
  • spontaneously active
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4
Q

What are the defining characteristics of smooth muscle?

A
  • internal structures
  • no striations
  • spontaneously active
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5
Q

What muscle is this?

A

Skeletal

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6
Q

What muscle is this?

A

Cardiac

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7
Q

What muscle is this?

A

smooth

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8
Q

What type of skeletal muscle is this?

A

Slow twitch

More pink = more oxygen = doesnt fatigue

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9
Q

What type of skeletal muscle is this?

A

Fast twitch

Less pink = Less oxygen = fatigue

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10
Q

Why do fast/slow twitch muscle fibres behave differently?

A
  • The ‘pink’ is the myoglobin
  • more myoglobin = more O2 stored
  • more O2 = less fatigued
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11
Q

What is this?

A

Skeletal muscle

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12
Q

What is this?

A

Tendon

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13
Q

What is this?

A

Connective Tissue

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14
Q

What is this?

A

Nerve and blood vessels

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15
Q

What is this?

A

Bundle of muscle fibres

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16
Q

What is this?

A

A muscle fibre

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17
Q

What is this?

18
Q

Where is calcium stored in the muscle fibres?

A

In the sarcoplasmic reticulum

(SR)

19
Q

What causes the visible striations in muscles?

A

When thick and thin filament meet

20
Q

What is myofibril?

A

The fibroud protein structure within the cell

21
Q

What is the role of T-tubules?

A
  • “pathway” to deep centre of cell
  • Which is where the SR is
22
Q

What is this?

23
Q

What is this?

A

Sarcoplasmic Retriculum, SR

24
Q

What is this?

A

Mitrochondria

25
Q

What is this?

A

Thick and thin filaments

26
Q

What is this?

27
Q

What is this?

28
Q

What is this?

A

Sarcolemma

29
Q

What is the result of having more fibrils?

A

More force and strength

30
Q

What protein makes up thin filaments?

A

Actin

several g actin monomers

31
Q

What protein makes up thick filaments?

32
Q

What are the regulatory proteins and their functions?

A
  • Tropomyosin
  • Troponin

They control when muscles contract

33
Q

What are the accessory proteins and their functions?

A
  • Titin
  • Nebulin

They provide elasticity and structure

34
Q

What type of filament is this?

35
Q

What type of filament is this?

36
Q

Fill the blank

37
Q

What is this?

38
Q

Whats going on here?

39
Q

What is a sacromere?

A

Building block of striations

40
Q

What is this?

Anatomy (16 decks)

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