SHUPA Physiology - Skeletal Muscle

This is the outer thin layer surrounding the polysaccharide, which fuses with the tendon fiber

• Sarcoplasm

• Sarcomere

• Sarcolemma

• Titin filamentous

Stretching and yoga produce more sarcomeres, which increase the _____ of the muscle

• Width

• Strength

• Length

• Plasticity

This structure consists of 1:2 actin per myosin and is responsible for allowing contractions to occur

• Myosin filament

• Actin filament

• Sarcomere

• Myofibril

Heavy lifting produces more myofibrils which increase _______

• Thickness

• Length

• Plasticity

• Longevity

One Z-disk to another z-disk is considered one of these.

This structure stores Ca that play a large role in skeletal muscle contractions

• Mitochondria

• Granular ER

• Sarcoplasmic reticulum

• Golgi apparatus

This cellular structure produces ATP for contractions

• Ribosomes

• Mitochondria

• Rough ER

• Lysosomes

This molecule consists of 2 heavy chains which are made of a tail in the shape of a double helix, 2 globular polypeptide heads, and 4 light chains.

• Actin

• Myosin

• Sarcoplasm

• ATPase

This filament consists of 200 molecules that are comprised of a body, arm, and head, which contains the enzyme ATPase

Actin filaments contain double stranded F-actin molecules that are made up of G-actin molecules that contain ….

• ATP

• ADD

• ADP

• APG