The sarcoplasmic reticulum of skeletal and cardiac muscle.
D000818:Animals; D006321:Heart / Q000033:anatomy & histology*; D006801:Humans; D009132:Muscles / Q000033:anatomy & histology*; D009206:Myocardium / Q000033:anatomy & histology*; D012519:Sarcoplasmic Reticulum
MUSCLES/anatomy and histology; MYOCARDIUM/anatomy and histology