depressor

/dih-pres-er/US // dɪˈprɛs ər //UK // (dɪˈprɛsə) //

压缩器,压舌板,压迫器,压缩机

Definitions

n.名词 noun

1
- : a person or thing that depresses.
- : Surgery. an instrument for pressing down a protruding part, as a tongue depressor.
- : Anatomy. a muscle that draws down a part of the body, as the corner of the mouth.Compare levator. Also called depressor nerve .a nerve that, when stimulated, induces a decrease in activity, as a slowed heartbeat.

In the basi-carinal corner of the valve there are often crests for the attachment of the tergal depressor muscle.
Cirripedia without a peduncle; scuta and terga furnished with depressor muscles; other valves united immoveably together.
The cavity for the lateral depressor muscle is generally very slight; but in the two vars.
The depressor muscle is attached in the middle, at the lower, open end of this cavity.
There is a short adductor ridge, and a deep narrow pit or cleft for the lateral-depressor muscle.