Term Name:	type IIb muscle cell
Synonyms:	type 2b muscle cell, type 2b muscle fiber, type IIb muscle fiber
Definition:	A type II muscle cell that contains a low content of myoglobin, relatively few mitochondria, relatively few blood capillaries and large amounts of glycogen. Type II B fibres are white, geared to generate ATP by anaerobic metabolic processes, not able to supply skeletal muscle fibres continuously with sufficient ATP, fatigue easily, split ATP at a fast rate and have a fast contraction velocity.
Ontology:	Cell Ontology [CL:0002215]