Muscle contraction

muscle contraction;
exocytosis, e.g.,
release of neurotransmitters at synapses (and essential for the long-term synaptic changes that produce Long-Term Potentiation (LTP) and Long-Term Depression (LTD);
secretion of hormones like insulin ...
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muscle contraction: a process in which actin and myosin proteins move within a sarcomere.
mutation: a random change in the gene pool of a population that gives rise to new alleles and is the source of variation in a population.
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See also muscle contraction
The three types of muscle have significant differences, but all use the movement of actin against myosin to produce contraction and relaxation.
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Control of Muscle Contraction
Neuromuscular junctions are the point where a motor neuron attaches to a muscle. Acetylcholine is released from the axon end of the nerve cell when a nerve impulse reaches the junction.
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Main article: Muscle contraction
Actin, together with myosin filaments, form actomyosin, which provides the mechanism for muscle contraction. Muscular contraction uses ATP for energy.
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In general they cause muscle contractions that constrict air passages in the lungs, involved in asthma. levorotatory isomer A stereoisomer that rotates the plane of plane-polarized light counterclockwise.
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thermogenesis The generation of heat by muscle contraction.
thermoplastics Soft plastics composed of single-chain, unlinked polymers, such as polyethylene, polypropylene, polyvinylchloride, polystyrene, and polyester, ...
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Actin filaments are important in muscle contraction.
During cell division a ring of actin filaments that surrounds the cell constricts, pinching the cell into two.
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A seizure characterized by myoclonus (sudden, brief, muscle contractions).
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
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Peristalsis waves of muscle contractions which push food through the digestive system
(peri = around; stalsis = a constriction compression) ...
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serotonin - increase vascular permeability and smooth muscle contraction. Originates from platelets ...
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They are composed predominantly of a contractile protein called actin, which is the most abundant cellular protein.
Microfilaments' association with the protein myosin is responsible for muscle contraction.
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The establishment of electric potentials across the plasma membrane and across organelle membranes makes possible a number of phenomena, including the chemiosmotic synthesis of ATP, the conduction of nerve impulses, and muscle contraction.
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