The slow twitch muscle fibres which are rich in myoglobin and have abundant mitochondria are
White skeletal muscles
cardiac muscles
red skeletal muscles
involuntary muscles
As we have learned
Red fibres -
Muscle contains a red coloured oxygen storing pigment called myoglobin.
- wherein
Myoglobin content is high in some of the muscles which gives a reddish appearance. Such muscles are called the Red fibres.