Question one - match the letter to the number A. Fast-twitch glycolytic fibers B

Question

Question one - match the letter to the number

A. Fast-twitch glycolytic fibers

B. ATP

C. Contraction speed and resistance to fatigue

D. Phosphocreatine

E. Length

F. Central

G. Causes

H. Fast-twitch oxidative-glycolytic fibers using enzymes in both cytoplasm and mitochondria

I. Slow-twitch oxidative fibers

1. Tension developed by individual muscle fibers is a function of fiber

2. Skeletal muscle contraction requires a steady supply of

3. Muscle fatigue has several

4. Resting muscle fiber that has the most myoglobin

5. If acetylcholine is not synthesized in the axon terminal fast enough to keep up with neuron firing rate, then this type of fatigue will happen

6. This type of muscle fiber uses anaerobic metabolism, thus fatigues quickly

7. This type of muscle fiber uses a combination of oxidative and glycolytic metabolism

8. Skeletal muscle fibers are classified by

Question 2 - match the letter to the number

A. Extrafusal and intrafusal muscle fibers

B. Muscle spindle

C. Golgi tendon organ

D. Intrafusal muscle fiber of the muscle spindle

E. Joint capsule mechanoreceptor

F. Muscle spindle afferent sensory fibers

1. Is strictly a sensory receptor within muscle attachments

2. Has spiral endings of the sensory neurons that send information to the CNS

3. Are associated with two different types of motor neurons

4. Conveys information about the relative positioning of bones

5. Is innervated by gamma motor neurons

Explanation / Answer

1. Tension developed by individual muscle fibers is a function of fiber C. Contraction speed and resistance to fatigue

2. Skeletal muscle contraction requires a steady supply of B. ATP

3. Muscle fatigue has several G. Causes

4. Resting muscle fiber that has the most myoglobin I. Slow-twitch oxidative fibers

5. If acetylcholine is not synthesized in the axon terminal fast enough to keep up with neuron firing rate, then this type of fatigue will happen F. Central

6. This type of muscle fiber uses anaerobic metabolism, thus fatigues quickly A. Fast-twitch glycolytic fibers

7. This type of muscle fiber uses a combination of oxidative and glycolytic metabolism H. Fast-twitch oxidative-glycolytic fibers using enzymes in both cytoplasm and mitochondria

8. Skeletal muscle fibers are classified by E. Length

1 C

2. C

3. B

4. E

5. F

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