The function of the depressor mandibulae muscle in certain passerine birds.
The crests for the depressor muscles are well developed in all the species.
The crests for the depressor muscles are barely discernible.
Cirripedia without a peduncle; scuta and terga furnished with depressor muscles; other valves united immoveably together.
There are no crests, or only traces of them, for the attachment of the depressor muscle.
The depressor muscle is attached in the middle, at the lower, open end of this cavity.
Internally (fig. 2f), the articular ridge is central: there are some vestiges of crests for the depressor muscle.
The articular ridge is but slightly developed; the crests for the depressor muscle are very feeble.
In all cases the crests for the depressor muscles are very feebly developed.
The crests for the depressor muscles are moderately well developed.
depressor de·pres·sor (dĭ-prěs'ər)
n.
Any of various muscles that act by drawing down a part of the body.
Something that depresses or retards functional activity.
An instrument used to push certain structures out of the way during an operation or examination.
An agent that lowers blood pressure. Also called hypotensor.
A nerve that when stimulated acts to lower arterial blood pressure.
