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Soft palate: Muscles, Function & Definition
软腭：肌肉、功能和定义
The soft palate is the posterior muscular extension of the hard palate which together makes up the palate of the oral cavity and the floor of the nasal cavity.
软腭是硬腭的后部肌肉延伸，它们共同构成口腔的上颚和鼻腔底部。
This video will discuss the soft palate including its borders, its function, its general anatomy, and its musculature.
这个视频将讨论软腭，包括软腭的边界、功能、大体解剖学和肌肉组织。
The soft palate is a purely muscular structure. It is bordered superiorly by the respiratory mucosa of the nasal cavity and inferiorly by the mucosa of the oral cavity.
软腭是一种纯肌肉结构。它上接呼吸道鼻腔黏膜，下接口腔黏膜。
Posteriorly, it has no borders and hangs at an inferior angle towards the larynx where it dangles the uvula in its midline.
软腭后无边界，向下悬垂向喉，中线处的悬垂物是悬雍垂。
Posterolaterally, however, it forms part of the superior portion of the palatoglossal and palatopharyngeal folds.
然而，在后外侧，它参与形成腭舌和腭咽皱襞上部。
Anteriorly, it is connected to the bony hard palate via an aponeurotic plate at the level of the vibrating line.
在前面，它通过腱膜板在颤动线水平连接骨质硬腭。
The soft palate is multifunctional and aids speech and the pronunciation of velar consonants along with the dorsum of the tongue.
软腭具有许多功能，它有助于说话和舌根辅音发音。
When swallowing, it rises to close the nasal passages and prevents any food or liquid from entering into the nasal cavity. It does the same thing for the larynx when sneezing. The uvula helps produce the gag reflex when touched.
吞咽时，软腭上提，关闭鼻腔，防止食物或液体进入鼻腔。打喷嚏时，它也具有同样的作用。悬雍垂有助于在触摸时引起呕吐反射。
The soft palate makes up approximately one third of the posterior portion of the palate. Its oral mucosal lining is covered with mucous secreting salivary glands. It has no bony frame and is made up entirely of various muscle fibers.
软腭约占腭的后 1/3。其口腔黏膜壁覆盖着分泌粘液的唾液腺。它没有骨质结构，完全由各种肌肉纤维组成。
The musculature is comprised of five main structures including the musculus uvulae, the tensor veli palatini, the levator veli palatini, the palatopharyngeus muscle, and the palatoglossus muscle.
肌肉组织由 5 个主要的结构组成，这 5 个结构包括悬雍垂肌、腭帆张肌、腭帆提肌、腭咽肌和腭舌肌。
It is innervated by the pharyngeal plexus which takes its motor fibers from the vagus nerve (the tenth cranial nerve) and the cranial portion of the accessory nerve (the eleventh cranial nerve). This plexus innervates all soft palate muscles except the tensor veli palatini muscle.
它受咽丛支配，咽丛包含迷走神经（第十颅神经）和副神经（第十一颅神经）颅段发出的运动纤维。该神经丛支配腭帆张肌外的所有软腭肌。
相关单词学习
Palatoglossal
①发音和释义
pal·a·to·glos·sal/pælə'təʊɡlɒsl/adj. 腭舌的
Relating to the palate and the tongue or to the palatoglossus muscle.
单词 palatoglossal 由下列成分构成
palato- 腭
+
glossal 舌的
（图源：太帅图库）
Palatopharyngeal
pal·a·to·pha·ryn·ge·al/pælɑːtəfeə'rɪndʒiːəl/adj. 腭咽的
Relating to palate and pharynx.
单词 palatopharyngeal 由下列成分构成
palato- 腭
+
pharyngeal 咽的
（图源：太帅图库）
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