Myoglobin is involved in Pacemaker areas a) storage/release of calcium ions b) a
ID: 3164446 • Letter: M
Question
Myoglobin is involved in Pacemaker areas a) storage/release of calcium ions b) arranging the myofibrils within a a) depend on input from the nervous b) respond to input from the nervous c) send information to the nervous d) are useful but not necessary muscle fiber c) anchoring muscle fibers to the extracellujlar matrix d) energy metabolism e) depolarization/repolarization system e) are completely independent of the nervous system Slow twitch muscles are less likely to fatigue as a result of accumulating ADP because they When striated muscle relaxes a) have a faster ATPase have less myoglobin a) b) c) d) the plasma membrane depolarizes calcium ions are pumped out of the b) c) d) have more mitochondria depend on glycolysis more than aerobic respiration e) have more receptors for neurotransmitters the z lines/discs move closer together the areas where myosin and actin overlap increase in size e) titin molecules contract itric oxide induces blood vessel elaxation. This may be explained Calcium calmodulin kinase is (choose the FALSE statement) y hyperpolarization due to a) b) c) d) opening of potassium ion channels opening of sodium ion channels opening of calcium ion channels increased activity of sodium- potassium pumps a) an enzyme b) catalyzes reactions where phosphat c) catalyzes reactions where methyl d) is required for smooth muscle e) is activated by calcium ions groups are added groups are added function e perimysium is located a) inside muscle fibers b) on the surface of muscle fibers c) on the surface of muscles d) on the surface of muscle fascicles e) surrounding muscle fibrils Unitary smooth muscles a) are associated with gap juncti b) are associated with pacemake ontraction where the tension is constant the muscle lengthens is called c) are associated with cells of C d) are associated with "muscle e) all of the above a) eccentric b) concentric c) elongation d) extendedExplanation / Answer
Myoglobin is involved in........
Myoglobin contains a heme (prosthetic) group which is responsible for its main function (carrying of oxygen molecules to muscle tissues). Myoglobin can exist in theoxygen free form, deoxymyoglobin, or in a form in which theoxygen molecule is bound, called oxymyoglobin.
Hemoglobin is a tetramer composed of two each of two types of closely related subunits, alpha and beta. Myoglobin is a monomer (so it doesn't have a quaternary structure at all). Myoglobin binds oxygen more tightly than does hemoglobin.A serum myoglobin test is used to measure the level of myoglobin in your blood.Myoglobin is a protein that's typically found in heart and skeletal muscle tissues. The only time that myoglobin is found in the bloodstream is when injury to a muscle has occurred.
Myoglobin (symbol Mb or MB) is an iron- and oxygen-binding protein found in the muscle tissue of vertebrates in general and in almost all mammals. It is related to hemoglobin, which is the iron- and oxygen-binding protein in blood, specifically in the red blood cells.
#body cells are less likely to be fatigue as a result of accumulation of ADP........
Metabolites are the substances (generally waste products) produced as a result of muscular contraction. They include chloride, potassium, lactic acid, ADP, magnesium (Mg2+), reactive oxygen species, and inorganic phosphate. Accumulation of metabolites can directly or indirectly produce metabolic fatigue within muscle fibers through interference with the release of calcium (Ca2+) from the sarcoplasmic reticulum or reduction of the sensitivity of contractile molecules actin and myosin to calcium.
# nitric oxides induces blood vessels relaxation
Metabolites are the substances (generally waste products) produced as a result of muscular contraction. They include chloride, potassium, lactic acid, ADP, magnesium (Mg2+), reactive oxygen species, and inorganic phosphate. Accumulation of metabolites can directly or indirectly produce metabolic fatigue within muscle fibers through interference with the release of calcium (Ca2+) from the sarcoplasmic reticulum or reduction of the sensitivity of contractile molecules actin and myosin to calcium.
# perimysium
Perimysium. ... Perimysium is a sheath of connective tissue that groups muscle fibers into bundles (anywhere between 10 and 100 or more) or fascicles. Recent advances in muscle physiology suggest that the perimysium plays a role in transmitting lateral contractile movements.
Perimysium is the name given to the fibrous sheath that surrounds (covers) each bundle of single muscle fibres, the bundle being known as a fascicle. Some texts describe perimysium as "dividing" or "grouping" individual muscle fibres into bundles or fasciculi.
#ontraction where contraction is constant and muscle lengthens is called........
Eccentric Contractions. ... Types of Muscle Contraction: An isotonic concentriccontraction results in the muscle shortening, an isotonic eccentric contractionresults in the muscle lengthening. During an isometric contraction the muscle is under tension but neither shortens nor lengthens.
# striated muscle relaxation
calcium is then pumped back into the sarcoplasmic reticulum breaking the link between actin and myosin. Actin and myosin return to their unbound state causing the muscle to relax. Alternatively relaxation (failure) will also occur when ATP is no longer available.
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