What is the styloglossus muscle innervated by?
What is the styloglossus muscle innervated by?
hypoglossal nerve
The styloglossus originates at the styloid process and blends into the fibers of the inferior longitudinal tongue muscles and the hyoglossus, and elevates and retracts the tongue posteriorly and superiorly. The genioglossus, hyoglossus, and styloglossus are all innervated by the hypoglossal nerve (CN XII).
What does styloglossus muscle do?
The styloglossus muscle acts to lift the lateral edges and to retract the tongue. The hyoglossus muscle causes retraction as well as depression of the tongue. The genioglossus muscle protrudes the tongue.
What type of muscle is the styloglossus?
extrinsic muscle
The styloglossus muscle is an extrinsic muscle of the tongue, and its origin in the styloid process of the temporal bone is well documented.
Which nerve Innervates the genioglossus hyoglossus and styloglossus muscles?
Hypoglossal Nerve
The hypoglossal nerve enables tongue movement. It controls the hyoglossus, intrinsic, genioglossus and styloglossus muscles.
What is the insertion of the styloglossus muscle?
| Styloglossus | |
|---|---|
| Insertion | tip and sides of tongue |
| Artery | sublingual branch of the lingual artery. |
| Nerve | Hypoglossal nerve (CN XII) |
| Actions | retraction and elevation of tongue |
What is the origin of styloglossus?
The styloglossus muscle originates at the distal lateral aspect of the stylohyoid bone and travels the length of the tongue, along its lateral aspect (Sisson 1975a). Near the tip of the tongue the paired muscle meets and ramifies with fibers of other tongue muscles. Contraction of the styloglossus retracts the tongue.
What nerve Innervates the Genioglossus?
[7][8] The vagus nerve is involved in the innervation of the genioglossus. The hypoglossal nerve also referred to as cranial nerve XII, is responsible for the innervation of both the intrinsic and extrinsic muscles; this includes the genioglossus muscles as they are part of the extrinsic muscle group.
What nerve Innervates the genioglossus?
Where is the Styloglossus muscle located?
tongue
The styloglossus muscle originates at the distal lateral aspect of the stylohyoid bone and travels the length of the tongue, along its lateral aspect (Sisson 1975a). Near the tip of the tongue the paired muscle meets and ramifies with fibers of other tongue muscles.
What is the styloglossus muscle?
The styloglossus muscles is one of three styloid muscles. The three styloid muscles are: Origin: Styloid process of temporal bone Insertion: lateral aspect of tongue Innervation: Hypoglossal nerve (cranial nerve 12) Action: Elevation and retraction of the tongue The styloid muscle is one of several extrinsic muscles of the tongue.
What nerve innervates the styloglossus?
Innervation. The styloglossus is innervated by the Hypoglossal nerve (CN XII) like all muscles of the tongue except palatoglossus which is innervated by the Pharyngeal plexus of vagus nerve (CN X).
What is the styloid muscle of the tongue?
Origin: Styloid process of temporal bone Insertion: lateral aspect of tongue Innervation: Hypoglossal nerve (cranial nerve 12) Action: Elevation and retraction of the tongue The styloid muscle is one of several extrinsic muscles of the tongue. Learn all about the extrinsic muscle of the tongue in this anatomy tutorial.
How does the styloglossus insert into posterolateral aspects?
To reach the tongue and insert into posterolateral aspects, it passes through the oropharyngeal triangle. The longitudinal part of the styloglossus will then blend with fibers of the inferior longitudinal muscle, and the oblique part of the styloglossus muscle will blend with fibers of the hyoglossus muscles.
