Effects of age, sex, and breeding status on the rat heart.
D000375:Aging; D000818:Animals; D001011:Aorta / Q000502:physiology; D001947:Breeding; D005260:Female; D006321:Heart / Q000502:physiology*; D006352:Heart Ventricles; D008168:Lung; D008297:Male; D009929:Organ Size; D051381:Rats; D012039:Regional Blood Flow; D012737:Sex Factors