Muscle Vocabulary from Notes

1
Muscle Vocabulary from Notes

• January 20, 2011

2
Vocabulary to learn

• Myofibrils
• Myosin
• Actin
• Sarcomere
• I bands
• Z lines
• A bands
• H zone
• Sarcoplasmic reticulum
• Thin filaments
• Thick filaments
• Transverse tubules (T tubules)

3
Vocabulary to learn, cont.

• Motor neurons
• Synapse
• Motor end plate
• Neuromuscular junction
• Motor unit
• Troponin and tropomyosin ( T T)
• Sliding filament theory/model
• Oxygen debt
• Muscle fatigue
• Threshold stimulus
• Latent period
• Twitch
• Origin Insertion of a muscle
• Agonist, synergist, and antagonist muscle
  functions

4
Vocabulary to learn, cont.

• Contracture
• Convulsion
• Fibrillation
• Fibrosis
• Myalgia
• Myokymia
• Myology
• Myoma
• Myopathy
• Myotomy
• Paresis
• Torticollis
• Muscular dystrophies
• Myasthenia gravis

5
Concepts to learn

• What is the relationship between cellular
  respiration and heat production?
• How are lactic acid, oxygen debt, and muscle
  fatigue related?
• Compare/contrast ATP production in aerobic
  respiration and anaerobic respiration

6
Thinking Critically

• An Olympic sprinter typically has more than 80
  fast twitch muscle fibers.
• An Olympic marathoner typically has more than 90
  slow twitch muscles.
• An average person has about half fast twitch and
  half slow twitch muscles.
• Explain the reasoning behind these statistics.