Question

which white muscle fibers found in arm muscles fatigue easily contain a low level a myoglobin relatively few blood capillaries and have a fast contraction rate

Answer 1

Answer: Type 2 Fibres

Explanation: 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. Such fibres are found in large numbers in the muscles of the arms.

Answer 2

i dont know could be c