Chapter 10 Part 3 Flashcards Preview

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Flashcards in Chapter 10 Part 3 Deck (29):
1

Creatine phosphate, anaerobic cellular respiration,aerobic cellular respiration

Muscle fiber replinish ATP 3 methods

2

Unique to muscle fibers last about 15 seconds

Creatine phosphate

3

Forms latic acid without oxygen such as strength training for

Anaerobic cellular respiration

4

Forms ATP with oxygen such as endurance training

Aerobic cellular respiration

5

Insufficient oxygen and calcium levels,depletion of nutrients and excessive lactic acid

Muscle fatigue factors

6

Nutrient and oxygen availability -amount of myofilament overlap -number of motor units activated -frequency of nerve impulse stimulation

Muscle tension factors

7

A brief contraction (single pull) of muscle fibers within a motor unit in response to one nerve impulse

Twitch

8

Latent; brief delay between stimulus and contraction ; Ca2+ levels increase -contraction period; muscle shortens -relaxation period;Ca 2+ levels decrease

Twitch 3 periods

9

Consists of one motor neuron and all muscle fibers it stimulates

Motor units

10

Control precise muscle movements such as vocal cords; one neuron controls a few muscle fibers

Small motor units

11

Control large powerful muscle movements such as hamstrings; neuron controls many muscle fibers

Large motor units

12

The amount of ___ inside muscle fibers powers contractions for only a few seconds

ATP

13

Fastest and most powerful type-produce ATP by anaerobic methos -fatigue quickest -most abundant in upper limb muscles -develop during strength training

Fast glycolytic

14

A painful spasm

Cramp

15

Increased muscle tone

Hypertonia

16

Intermediate in strength and speed -produce ATP by aerobic and anaerobic methods -most abundant in lower limbs

Fast oxidative glycolytic

17

Each consists of the same type of skeletal muscle

Motor unit

18

The muscle length does not change and object remains stationary -leads to isotonic contraction

Isometric contraction

19

Produces larger contractions when nerve impulse occur one after the other

Wave summation

20

Decreased muscle tone

Hypotonia

21

Pain associated with muscles

Myalalagia

22

Slowest and least powerful produce ARap by aerobic method fatigue slower most abundant in postural muscles

Slow oxidative fibers

23

Results in a smooth sub stained contraction muscle does not relax between impulses

Fused tetanus

24

Most are a mixture of 3 muscle fiber types

Skeletal muscles

25

Muscle length changed produces movement -concentric causes flexion -eccentric causes extension

Isotonic contraction

26

Reduces severity of muscle spasms by increasing blood flow resetting muscle tone

Massage

27

Located in heart-bunched straited and involuntary -intercalated discs connective fibers-muscle fibers are autohythmic and form "pace maker"

Cardiac muscle

28

Affects strength of muscle contraction in various ways

Frequency of stimulation

29

Slow oxidative -fast oxidative glycolytic -fast glycolytic

Skeletal muscle contraction speeds