Superior pharyngeal constrictor muscle information
Muscle
Superior pharyngeal constrictor muscle
Muscles of the pharynx and cheek.
Muscles of the pharynx, viewed from behind, together with the associated vessels and nerves.
Details
Origin
Medial pterygoid plate, pterygomandibular raphé, alveolar process
Insertion
Pharyngeal raphe, pharyngeal tubercle
Artery
Ascending pharyngeal artery and tonsillar branch of facial artery
Nerve
Pharyngeal plexus of vagus nerve
Actions
Swallowing
Identifiers
Latin
musculus constrictor pharyngis superior
TA98
A05.3.01.103
TA2
2179
FMA
46621
Anatomical terms of muscle
[edit on Wikidata]
The superior pharyngeal constrictor muscle is a quadrilateral muscle of the pharynx. It is the uppermost and thinnest of the three pharyngeal constrictors.[citation needed]
The muscle is divided into four parts according to its four distincts origins: a pterygopharyngeal, buccopharyngeal, mylopharyngeal, and a glossopharyngeal part. The muscle inserts onto the pharyngeal raphe, and pharyngeal spine. It is innervated by pharyngeal branch of the vagus nerve via the pharyngeal plexus. It acts to convey a bolus down towards the esophagus, facilitating swallowing.
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circular layer includes: Superiorconstrictormuscle Middle constrictormuscle Inferior constrictormuscle During swallowing, these muscles constrict to propel...
mandible. It gives attachment to the buccinator muscle (in front), and the superiorpharyngealconstrictormuscle (behind). The pterygomandibular raphe is a...
needed] It is formed as a thickening of the pharyngeal mucosa superior to the superiorpharyngealconstrictormuscle. It attaches to the basilar part of occipital...
middle pharyngealconstrictormuscle. It has the following components: Motor – pharyngeal branch of vagus nerve (CN X) which arises from the superior portion...
pharyngomaxillary space), which is lateral to the superiorpharyngealconstrictormuscle and medial to the masseter muscle. This space is divided by the styloid process...
foramen magnum. The pharyngeal tubercle gives attachment to the pharyngeal raphe and, thereby, the superiorpharyngealconstrictormuscle which forms it....
posterosuperiorly. It is the site of origin of the mylohyoid muscle, the superiorpharyngealconstrictormuscle, and the pterygomandibular raphe. The mylohyoid line...
styloglossus muscle, the tonsillar artery penetrates the superiorpharyngealconstrictormuscle to enter the pharynx and reach the palatine tonsil. The...
relations: The parotid gland comes into contact with the superiorpharyngealconstrictormuscle at the medial border, where the anteromedial and posteromedial...
superior orbital fissure superior petrosal sinus superiorpharyngealconstrictormusclesuperior pubic ramus superior rectus superior rectus muscle superior...
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and sternothyroid muscles. To its medial side are the inferior pharyngealconstrictormuscle and the external branch of the superior laryngeal nerve. It...
pretracheal fascia (visceral fascia). It covers the superiorpharyngealconstrictormuscles, and buccinator muscle. The buccopharyngeal fascia is a thin lamina...
inferior pharyngealconstrictormuscle. The recurrent laryngeal nerves control all intrinsic muscles of the larynx except for the cricothyroid muscle. These...
by pharyngeal peristalsis which takes place by sequential contraction of the superior, middle and inferior pharyngealconstrictormuscles (pharyngeal plexus—IX...
of mucosa and the superiorpharyngealconstrictormuscle. The muscle stays attached to the pharyngeal wall at the upper side (superior flap) or at the lower...
inferior pharyngealconstrictormuscle to reach the posterior surface of the larynx.[citation needed] At the inferior border of the inferior pharyngeal constrictor...