Fibrous motor protein composed of two spiral chains that is associated with I band and is involved in muscle contraction
Anaerobic
Condition where no oxygen is present
ATP
Molecule involved in metabolic short?term energy storage that cells use to store energy. The molecule contains three phosphates
Cardiac muscle Muscle under involuntary control that contains striations and is only found in the heart
Contractile protein
Protein that have the ability to contract when stimulated and include actin and myosin
Creatine phosphate
Organic compound found in muscles of vertibrates that serves as short term energy for muscle contraction
Endomysium
Connective tissue that surrounds single muscle fiber and contains capillaries that feed the muscle fiber and nerve fiber that control the muscle fiber
Epimysium
Dense irregular connective tissue that surrounds entire muscle and separates the muscle from surrounding tissue
Fascicle
Bundle of muscle fibers that contain between 10 to 100 fibers or cells
Glucose
Six carbon single sugar and is the most common dietary energy source in farm animals.
Glycogen
Polysaccharide consisting of a large number of glucose units joined together by ? 1-4 bonds, is a long term energy storage in animal cells and is made primarily by the liver and muscles
Glycolysis
Series of chemical reactions that split 6 C glucose into 2 3 C pyruvate(s) and generates 6 ATP
Insertion
Attachment point to bone (or another muscle) that is moved by contraction
Muscle fiber
Individual muscle cell found in skeletal muscle
Myofibril
Slender striated functional subunits of a muscle fiber composed of bundles of myofilaments and are the contractible units of muscle
Myofilaments
Protein filaments composed of contractible proteins and include actin and myosin
Myoglobin
Oxygen binding protein found in muscle tissue that contains heme
Myosin
Fibrous motor protein found in muscle that is associated with the A band that functions in muscle contraction
Origin
Attachment point to bone (or another muscle) that is not moved due to contraction (anchor)
Perimysium
Connective tissue that surrounds a bundle (fascicles) of muscle fibers and includes major blood and nerve supply for the bundle
Regulatory protein
Protein that aid in initiation and termination of contraction process and include tropomyosin and troponin
Resting membrane potential
Voltage that exists across a membrane when at rest due to a difference in ion concentration
Sarcolemma
Muscle cell membrane
Sarcomerre
Functional, repeating, contractible unit of myofibril that is composed of myosin and actin
Sarcoplasma
Muscle cell contents
Sarcoplasmic reticulum
Tubular network surrounding each myofibril and located in conjunction with a T tubule and is involved with the regulation of Ca
Skeletal muscle
Muscle under voluntary control that contains striations and makes up morethan 90% of the muscle we consume from farm animals
Smooth muscle
Muscle under involuntary control that does not contain striations and is found with in the digestive system, the urinary system and in blood vessels
Structural protein
Protein critical for maintaining the alignment of myofilaments inside myofibril and attach the myofibril to the sarcolemma and include myomesin
T tubule
Series of tubules that run perpendicular to sarcolemma and into cytoplasm
TCA cycle
Series of chemical reactions that convert pyruvate into 3 carbon dioxides and generates 15 ATPs
Tendon
Dense band of fibrous connective tissue that connects muscle to bone
Thick filament
Protein filament made up of myosin that is involved with the contractile property of muscle
Thin filament
Protein filament made up of actin in association with troponin and tropomyosin that is involved with the contractile property of muscle
transverse tuble
Series of tubules that run perpendicular to sarcolemma and into cytoplasm