Karaus M, Wienbeck M
Fortschr Med. 1989 May 30;107(16):356-60.
Colonic motility has a number of tasks to fulfill: mixing, storage and slow transportation of intestinal contents, and rapid evacuation of feces. All this requires complex motor patterns. Phases of contraction alternate with phases of motor inactivity. Contractile activity is controlled by the myoelectric activity. Spikes and oscillations are superimposed on the electrical control activity. Short spike bursts are associated with contractions of short duration and serve for mixing; long spike bursts and oscillations are accompanied by tonic contractions of long duration, and are mainly propulsive. Giant migrating contractions occur sporadically and result in the emptying of large sections of the colon. Disturbances of colonic motility are of pathogenetic significance in a number of diseases. This has diagnostic and therapeutic consequences.
混合、储存和缓慢运输肠内容物,以及快速排出粪便。所有这些都需要复杂的运动模式。收缩期与运动静止期交替出现。收缩活动由肌电活动控制。峰电位和振荡叠加在电控制活动之上。短峰电位爆发与短时间收缩相关,用于混合;长峰电位爆发和振荡伴随着长时间的强直性收缩,主要起推进作用。巨大移行性收缩偶尔发生,导致结肠大部分排空。结肠运动紊乱在许多疾病中具有致病意义。这具有诊断和治疗方面的影响。