Neuromuscular Adaptations to Exercise

Question 1

Skeletal Muscle

Answer 1

• Human Body contains over. 600 skeletal muscles (40-50% of total body weight)
• Functions of skeletal muscle provide…
• Force for locomotion, breathing and posture
• Provide heat during cold stress (shivering)
• Exercise
• Contract and generate a wide range of tensions/ force
• Alter tension and force in small increments (Do this repeatedly and rapidly)

Question 2

Connective Tissue covering muscle (KNOW LAYERS IN ORDER)

Answer 2

• Epimysium: Outermost layer of connective tissue
• Fascicles: surrounded by perimysium layer
• Endomysium: connective tissue surrounding individual muscle fibers
• Fascia: Myofascial release

Question 3

Within the sarcoplasm

Answer 3

o Sarcolemma
❖ Sheath that wraps individual fibers
❖ Acts as a conductor of action potentials
o Sarcoplasmic reticulum
❖ Houses the Ca2+ released during muscle contraction
o Transverse tubules (T tubules)
❖ Send Action Potentials and substances down the sarcomere
o Terminal cisternae
❖ Run at sides of the T-tubules
o The “Triad” region:
❖ Combined structure consisting of the t-tubules and terminal cisternae aids in depolarization of cell