The term systemic circulation is identified in base64 scheme by the sequence c3lzdGVtaWMgY2lyY3VsYXRpb24=, while the MD5 signature is equal to af5a196737935a465894bdb705d5067c. The ASCII encoding of systemic circulation in hexadecimal notation is 73797374656d69632063697263756c6174696f6e.