Circulation and respiration in the tortoise.
D000818:Animals; D002320:Cardiovascular Physiological Phenomena; D002319:Cardiovascular System / Q000502:physiology*; D019069:Cell Respiration; D006801:Humans; D012104:Reptiles; D012119:Respiration / Q000502:physiology*
CARDIOVASCULAR SYSTEM/physiology; REPTILES; RESPIRATION/physiology