0 any snake that kills animals and birds by wrapping itself around them and crushing them
1 a muscle that makes a part of the body narrower
It involves a more extreme form of the laryngeal constrictor just described.
This type of airflow constrictor has, to our knowledge, not been documented before.
Direct observation reveals how the tongue operates in conjunction with the laryngeal constrictor mechanism to change vowel quality.
The cholinesterase and acetylcholine content of the chick retina with special reference to functional activity as indicated by the pupillary constrictor reflex.
The upper oesophageal sphincter relaxes to receive the bolus of food that is then transferred to the oesophagus by the action of the superior pharyngeal constrictor muscle.
An active state of peripheral vasodilation, whether through decreased constrictor sensitivity or enhanced dilator synthesis thus provides the most obvious explanation for a fall in peripheral resistance.
However, he unfortunately brought to the debate all the panache and charm of a boa constrictor.
Therefore, boa constrictors are not on the list either.
