Inward rectification in submucosal arterioles of XXXX ileum.

@entity972 @entity1347 @entity840 @entity1372 @entity2865 @entity9666
1. The current-voltage relationships of @entity1347 of @entity840 have been determined using constant current and voltage clamp techniques. 2. The current-voltage relationships were non-linear over the membrane potential range -60 to -90 mV, the conductance increasing with hyperpolarization. 3. The membrane potential ranges over which the membrane conductance increased were changed by changing the external concentration of @entity972 ions. 4. Changing the external concentrations of @entity1372 and @entity2865 ions had no effect on the arteriolar current-voltage relationships. 5. The hyperpolarization-activated conductance increase was prevented by low concentrations of @entity9666 ions. 6. It is suggested that these arterioles display @entity972 -selective inward rectification and that the rectifier supplies the dominant resting @entity972 conductance. The properties of this rectifier are compared with those of other tissues.
