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. 1961 Sep;2(3):252-62.
doi: 10.1136/gut.2.3.252.

The cardiac sphincter in the cat

C G CLARK, J R VANE

The cardiac sphincter in the cat

C G CLARK et al. Gut. 1961 Sep.

Abstract

A study of the function of the lower end of the oesophagus in the cat confirms that it behaves as a true physiological sphincter, even though histological evidence for such a structure is absent. Sphincteric action is a function of the circular muscle fibres in the lowest 2 cm. of the oesophagus. Reflex changes in tone of the sphincter are mediated through the autonomic nervous system. The effects of possible neurohumoral transmitters, nerve stimulation, and antagonists have been studied.

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