Thick filament
Myosin
Identify the connective tissue
Epimysium
What is it called when the myosin heads pull on the actin causing muscles to contract?
Power Stroke
When a muscle grows in size
Hypertrophy
What can be used to convert ADP+P into ATP?
Creatine Phosphate
Voluntarily controlled, striated appearance, mainly functions to move the skeleton
Skeletal Muscle
Identify F in the diagram
I Band
Where the nerve and muscle meet is called a _______ ________.
Neuromuscular Junction
When a muscle becomes weak and small
Atrophy
Where does cellular respiration take place?
Mitochondria
Contractile unit of a muscle fiber
Sarcomere
Identify G in the diagram.
A Band
What is the term where a myosin head binds with the actin binding site?
Cross bridge
Which type of muscle fiber generates maximum force rapidly?
Fast Twitch
Which type of muscle contraction generates a force without shortening?
Isometric
Holds Calcium in the muscle cell
Sarcoplasmic Reticulum
Identify “7” in the diagram
Acetylcholine (ACh)
An action potential travels along the sarcolemma and heads where?
Transverse Tubules (T-Tubules)
Which type of muscle fiber is more densely packed with mitochondria?
Slow Twitch
Muscle that is attached to the moveable end.
Insertion
Individual parallel muscle fibers within sarcoplasm
Myofibrils
Identify “A” in the diagram, purple
Tropomyosin
What do Calcium ions bind with in order to expose actin binding sites?
Troponin
Name three training adaptations that occur with skeletal muscle.
Increase in mitochondria, capillaries, and aerobic respiration capacity.
Identify "A" as the origin or insertion
Insertion