sphincter

简明释义

[ˈsfɪŋktə(r)][ˈsfɪŋktər]

n. [解剖] 括约肌

复 数 s p h i n c t e r s

英英释义

A circular band of muscle fibers that constricts a passage or closes a natural opening in the body.

一种环形肌肉纤维,收缩通道或关闭身体的自然开口。

单词用法

anal sphincter

肛门括约肌;肛管括约肌

同义词

constrictor

收缩肌

The esophageal constrictor muscles help in swallowing.

食道收缩肌帮助吞咽。

valve

阀门

The heart valve regulates blood flow.

心脏阀门调节血液流动。

反义词

dilator

扩张器

The dilator muscle helps to widen the opening.

扩张肌有助于扩大开口。

例句

1.The aim of preoperative radiotherapy for rectal cancer is to improve the local control rate, increase the possibility for sphincter preservation, and improve the survival and the quality of life.

术前放疗在直肠癌综合治疗中的目标是提高局部控制率,增加保肛的几率,提高生存率及生活质量。

2.The aim of preoperative radiotherapy for rectal cancer is to improve the local control rate, increase the possibility for sphincter preservation, and improve the survival and the quality of life.

术前放疗在直肠癌综合治疗中的目标是提高局部控制率,增加保肛的几率,提高生存率及生活质量。

3.Assess ability to control external sphincter.

评估病人外括约机控制情况。

4.Objective in order to explore a new sphincter-saving operation on distal rectal cancer and its effect.

目的探讨直肠下段癌保肛治疗的新术式和效果。

5.The JOA lower limb motor function standard and sphincter function standard were used to evaluate the ability of lower limb motion and sphincter function respectively.

用改良JOA下肢运动功能评分标准评价所有病例下肢的运动功能。

6.Relaxation pressure of sphincter during defecation was higher in constipation group of IBS than that in normal subjects (P<0.05).

排便时IBS便秘组患者的肛管松弛压高于正常对照组(P< 0 .0 5 )。

7.Yo, Viv, babe. Would you come down here? The sphincter police won't let me through.

薇薇安宝贝,请你下来,强壮警察不肯让我走去。

8.Objective To study the usual complications and preventive measures after applying double stapling device in the sphincter preserving surgery.

目的探讨双吻合器在低位直肠癌前切除术中常见并发症及预防措施。

9.The doctor explained that the sphincter 括约肌 controls the flow of urine from the bladder.

医生解释说,括约肌 sphincter 控制着膀胱的尿液流出。

10.After surgery, the patient had difficulty relaxing the sphincter 括约肌 muscle.

手术后,患者发现放松 括约肌 sphincter 肌肉很困难。

11.Certain exercises can strengthen the pelvic floor and improve sphincter 括约肌 function.

某些锻炼可以增强盆底肌肉并改善 括约肌 sphincter 的功能。

12.The sphincter 括约肌 opens and closes to allow food to pass into the stomach.

食物进入胃时,括约肌 sphincter 会打开和关闭。

13.The sphincter 括约肌 at the end of the digestive tract helps to control bowel movements.

消化道末端的 括约肌 sphincter 有助于控制排便。

作文

The human body is a complex system made up of various organs and structures that work together to maintain life. One of the lesser-known yet crucial components of this system is the muscle known as the sphincter. A sphincter is a circular muscle that surrounds and constricts a bodily passage or opening. These muscles play a vital role in controlling the flow of substances in and out of different parts of the body, ensuring that everything functions smoothly. There are several types of sphincters in the human body, each serving a unique purpose. For instance, the lower esophageal sphincter is located at the junction of the esophagus and the stomach. It prevents the backflow of stomach contents into the esophagus, which can lead to conditions such as acid reflux. Another important sphincter is the pyloric sphincter, which regulates the passage of partially digested food from the stomach into the small intestine. This control is essential for proper digestion and nutrient absorption.In addition to these digestive sphincters, there are also those involved in excretion. The anal sphincter is perhaps the most well-known example, as it controls the expulsion of feces from the body. The ability to voluntarily relax this sphincter is crucial for maintaining bowel control, highlighting its importance in daily life.Moreover, the urinary system also contains sphincters. The internal and external urethral sphincters work together to control the release of urine from the bladder. The internal sphincter is involuntary, while the external sphincter is under voluntary control, allowing individuals to decide when to urinate. Dysfunction in these sphincters can lead to issues such as incontinence, which can significantly affect one's quality of life.Understanding the function of sphincters can also shed light on various medical conditions. For instance, a malfunctioning sphincter can lead to gastrointestinal disorders, urinary tract issues, or even problems related to childbirth. In some cases, surgical interventions may be necessary to repair or replace a damaged sphincter, highlighting the significance of these muscles in overall health.In conclusion, sphincters are essential components of the human body that play a critical role in regulating various bodily functions. From controlling the flow of food and waste to managing urinary processes, these circular muscles ensure that our systems operate efficiently. By gaining a better understanding of sphincters, we can appreciate their importance in maintaining our health and well-being. As we continue to explore the intricacies of the human body, it becomes clear that every part, including the often-overlooked sphincter, plays a vital role in our overall functioning.

人体是一个由各种器官和结构组成的复杂系统,这些器官和结构共同工作以维持生命。其中一个较少被人知晓但至关重要的组成部分是被称为sphincter的肌肉。sphincter是一种环形肌肉,包围并收缩身体的通道或开口。这些肌肉在控制物质进出身体不同部位的流动方面发挥着重要作用,确保一切正常运作。人体中有几种类型的sphincters,每种都有其独特的功能。例如,下食道sphincter位于食道与胃的交界处。它防止胃内容物逆流入食道,这可能导致诸如胃酸反流等病症。另一个重要的sphincter是幽门sphincter,它调节部分消化食物从胃到小肠的通过。这种控制对适当消化和营养吸收至关重要。除了这些消化性sphincters,还有一些涉及排泄的sphincters。肛门sphincter可能是最著名的例子,因为它控制粪便从体内排出的过程。能够自愿放松这个sphincter对于保持肠道控制至关重要,突显了它在日常生活中的重要性。此外,泌尿系统也包含sphincters。内尿道sphincter和外尿道sphincter共同作用,控制膀胱内尿液的释放。内sphincter是非自愿的,而外sphincter则是自愿控制的,使个体能够决定何时排尿。这些sphincters的功能失调可能导致诸如失禁等问题,这会显著影响个人的生活质量。理解sphincters的功能还可以揭示各种医疗状况。例如,功能失调的sphincter可能导致胃肠疾病、尿路问题,甚至与分娩相关的问题。在某些情况下,可能需要手术干预来修复或替换受损的sphincter,这突显了这些肌肉在整体健康中的重要性。总之,sphincters是人体的重要组成部分,在调节各种身体功能方面发挥着关键作用。从控制食物和废物的流动到管理尿液的过程,这些环形肌肉确保我们的系统高效运作。通过更好地理解sphincters,我们可以欣赏它们在维护我们的健康和幸福中的重要性。当我们继续探索人体的复杂性时,显然每个部分,包括常被忽视的sphincter,在我们整体功能中都扮演着至关重要的角色。