Physiological properties of gastrointestinal smooth muscle 消化道平滑肌的特性 General properties(一般特性) o Low excitability o High distensibility(扩张性) o Tonic contraction o Autorhythmicity o High sensitivity to temperature, stretch and chemical stimulationPhysiological properties of gastrointestinal smooth muscle 消化道平滑肌的特性 ◼ General properties (一般特性)  Low excitability  High distensibility (扩张性)  Tonic contraction  Autorhythmicity  High sensitivity to temperature, stretch and chemical stimulation