Stylohyoid is a small, thin muscle that arises from the posterior surface of the styloid process of temporal bone. ... The muscle travels anteroinferiorly and medially, attaching to the body of hyoid bone, right at its intersection with the greater horn of hyoid bone.

What does stylohyoid mean?

Medical Definition of stylohyoid muscle

: a slender muscle that arises from the posterior surface of the styloid process of the temporal bone, inserts into the body of the hyoid bone, and acts to elevate and retract the hyoid bone resulting in elongation of the floor of the mouth.

What is a styloid in anatomy?

Medical Definition of styloid process

: any of several long slender pointed bony processes: as. a : a sharp spine that projects downward and forward from the inferior surface of the temporal bone just in front of the stylomastoid foramen and that is derived from cartilage of the second visceral arch.

What is the function of the stylohyoid ligament?

Structure. The stylohyoid ligament connects the lesser horn of hyoid bone to the styloid process of the temporal bone of the skull.

Where is the stylohyoid ligament?

The stylohyoid ligament forms part of the styloid apparatus. The origin is at the styloid process of the temporal bone and it inserts into lesser horn of the hyoid bone. The stylohyoid ligament provides part of the origin for the middle pharyngeal constrictor muscle and styloglossus muscle.

Tongue Muscles and the Hyoid Bone

25 related questions found

What is the stylohyoid process?

The styloid process is a cylindrical, slender, needle-like projection of varying lengths averaging 2 to 3 cm. ... Through these structures, the styloid process facilitates the movement of the tongue, pharynx, larynx, hyoid bone, and mandible. Significant vessels and nerves surround the styloid process.

What is Eagle's syndrome?

Eagle syndrome is characterized by recurrent pain in the middle part of the throat (oropharynx) and face. "Classic Eagle syndrome" is typically seen in patients after throat trauma or tonsillectomy. Symptoms include dull and persistent throat pain that may radiate to the ear and worsen with rotation of the head.

What are the Styloglossus and stylohyoid?

The origin of the stylohyoid muscle is from the middle of the posterior surface of the styloid process of the temporal bone near its base. ... The styloglossus muscle lies medially and anterior to the stylohyoid muscle. The stylopharyngeal muscle is located between the stylohyoid and the styloglossus muscle.

What is the Genioglossus?

The genioglossus muscle is a fan-shaped muscle that is involved in forming most of the tongue mass. It emerges from the superior mental spines and inserts on the hyoid bone as well as the inferior portion of the tongue.

Is styloid a bone?

Structure. The styloid process is a slender pointed piece of bone just below the ear. It projects down and forward from the inferior surface of the temporal bone, and serves as an anchor point for several muscles associated with the tongue and larynx.

What is the weakest part of the skull?

Clinical significance

The pterion is known as the weakest part of the skull. The anterior division of the middle meningeal artery runs underneath the pterion. Consequently, a traumatic blow to the pterion may rupture the middle meningeal artery causing an epidural haematoma.

What is the Sternohyoid?

13341. Anatomical terms of muscle. The sternohyoid muscle is a thin, narrow muscle attaching the hyoid bone to the sternum. It is one of the paired strap muscles of the infrahyoid muscles. It is supplied by the ansa cervicalis.

What is the Hyoglossus muscle?

The hyoglossus muscle is a thin, quadrilaterally shaped muscle in the upper neck and the floor of the mouth. It is one of the extrinsic muscles of the tongue. The submandibular ganglion suspended from the lingual nerve sits on it.

What is the origin of the Digastric?

The digastric muscle stretches between the mastoid process of the cranium to the mandible at the chin, and part-way between, it becomes a tendon which passes through a tendinous pulley attached to the hyoid bone. It originates from the second pharyngeal arch.

What is the tongue muscle?

The genioglossus muscle protrudes the tongue and is innervated by the hypoglossal nerve (CN XII). The styloglossus muscle draws up the sides of the tongue to create a trough for swallowing following adequate mastication. The pair of styloglossus muscles work together on each side to retract the tongue.

Where is the radial styloid?

The radial styloid process is a projection of bone on the lateral surface of the distal radius bone. It extends obliquely downward into a strong, conical projection. The tendon of the brachioradialis attaches at its base, and the radial collateral ligament of the wrist attaches at its apex.

What does the Palatoglossus do?

Structure and Function

The palatoglossus muscle functions to elevate the posterior portion of the tongue. It also draws the soft palate inferiorly, thereby narrowing the diameter of the oropharyngeal isthmus.

What does the styloid process do?

The styloid process of the temporal bone is a slender osseous projection that points anteroinferiorly from the inferior surface of the petrous part of the temporal bone. It serves as an anchor point for several muscles associated with the tongue and larynx: styloglossus muscle.

Where is the Geniohyoid?

The geniohyoid muscle is a narrow muscle situated superior to the medial border of the mylohyoid muscle. It is named for its passage from the chin ("genio-" is a standard prefix for "chin") to the hyoid bone.

What causes digastric muscle pain?

Pain or discomfort in the digastric muscle may be related to muscle tears and sprains or injuries due to overuse. Some conditions which may affect the digastric muscle include myopathy, atrophy, infectious myositis, lacerations, contusions or neuromuscular diseases.

What does Carotidynia feel like?

Carotidynia is a pain that you feel in your neck or face. It is linked with physical changes that can happen in a carotid artery in your neck. Your neck may feel tender in the area of the artery. The pain often goes up the neck to the jaw, ear, or forehead.

Why is my hyoid bone clicking?

It could occur because of elongation and thickening of the hyoid bone, resulting in its coming in contact with the cervical vertebrae during swallowing, or because of abutting of the thyroid cartilage against the hyoid bone, or even because of ossification of the space between the thyroid cartilage and the greater ...

Is Eagle syndrome rare?

Eagle's syndrome (ES) is a rare entity that is not commonly suspected in clinical practice. The prevalence of individuals with an elongated styloid process in the adult population is estimated to be 4% with a very small percent of these individuals reported to be symptomatic.