The Sarcomere
The two alternating bands on the myofibrils
What are the I bands and the A bands?
Energy system that requires oxygen
What is aerobic respiration?
Decreases the angle at a joint
What is flexion?
A bundle of muscle fibers
What is a fascicle?
A motor neuron and all of the muscle fibers it innervates
What is a motor unit?
The complex that blocks myosin binding site on the actin
What is the troponin-tropomyosin complex?
System that is used for short, explosive movements
What is the ATP-CP system?
Moving a limb towards the midline of the body
What is aDduction?
Order of connective tissue wrappings from the outside of the muscle itself to the inside
What is the epimysium, perimysium and endomysium?
A state of continuous partial muscle contraction
What is muscle tone?
Released from the sarcoplasmic reticulum to facilitate muscle contraction
What is calcium?
System that predominates during a cross country race
What is the aerobic system?
Moving the palm anteriorly
What is supination?
The structures that make up muscle fibers
What are the myofibrils?
One of two muscle attachments where muscle attaches to bone --the MOVEABLE bone
What is the insertion?
The zone of the sarcomere that contains only myosin
What is the H zone?
System that predominates during a 400m race (once around the track)
What is the anaerobic system?
Moving the sole medially
What is inversion?
The connective tissue wrapping surrounding groups of muscles
What is the fascia?
The muscle with the major responsibility in a movement
What is the prime mover?
Found in the middle of the I bands
What are the Z lines?
The amazing equation for aerobic cellular respiration and the amount of ATP made per glucose molecule
C6H12O6 + 6O2 --> 6H20 + 6CO2
36 - 38 ATP
A ballerina standing on her toes is an example
What is plantar flexion?
The sheet-like connective tissue that connects muscles to bones, cartilage or other connective tissue
What is an aponeurosis?
Type of contraction where the muscle shortens and movement occurs
What is a concentric contraction?