depressor

• 名词，指使身体某部分向下运动或降低其活动、张力的肌肉或神经，也指用于按压或牵拉身体某部分的医疗器械。

A noun referring to a muscle that draws a body part downward, a nerve that reduces activity or tone in a body part, or a medical instrument used to press a part down or aside.

1. Depressor muscleC1formalmedical

   Any skeletal muscle that draws a body part down, such as the depressor anguli oris or depressor labii inferioris.

   降肌

   • The depressor anguli oris muscle pulls the corners of the mouth downward.
   • During the surgery, the depressor muscles were carefully identified.
   • The depressor labii inferioris helps in lowering the lower lip.

   反义词elevatorlevator

2. Depressor nerveC1formalmedical

   Any nerve whose activity tends to reduce the activity or tone of the body part it serves, often lowering blood pressure or heart rate.

   减压神经

   • Stimulation of the depressor nerve can cause a drop in heart rate.
   • The depressor nerve plays a role in regulating blood pressure.
   • Damage to the depressor nerve may affect autonomic functions.

3. Medical instrumentB2formalmedical

   A device used by a physician to press a part down or aside, such as a tongue depressor.

   医疗器械

   • The doctor used a tongue depressor to examine the patient's throat.
   • A depressor is essential for a clear view during oral exams.
   • The nurse handed the physician a sterile depressor for the procedure.

   同义词spatula