What Is the Stylohyoid?
The styloid hyoid muscle is located above the posterior abdomen of the digastric muscle. It starts from the styloid process and stops at the junction of the hyoid body and the big angle of the hyoid bone. The upper hyoid muscle group mainly functions as lowering the jaw.
- Chinese name
- Styloid hyoid muscle
- Foreign name
- musculi stylohyoideus
- The styloid hyoid muscle is located above the posterior abdomen of the digastric muscle. It starts from the styloid process and stops at the junction of the hyoid body and the big angle of the hyoid bone. The upper hyoid muscle group mainly functions as lowering the jaw.
Styloid hyoid muscle styloid hyoid muscle with mandibular hyoid muscle variation
- In the process of making a left facial fork nerve specimen of an adult male, it was found that the styloid process was too long, the styloid process hyoid muscle stopped at the diabdominal muscle, and the extra styloid process hyoid muscle, and extra mandibular hyoid muscle appeared. This kind of coexistence of multiple mutations is extremely rare. There is no report in the literature at home and abroad. To accumulate Chinese anatomy data, it is reported as follows: the abnormal styloid process length is 3.16cm (normal styloid process length is 1.65cm). The styloid hyoid muscle is dominated by the facial nerve branches. A small tendon starts at the base of the styloid process, moves forward and downward 0.76cm, and moves back to the muscular abdomen. The muscular abdomen is semifusiform, 5.46cm long, and 0.66cm wide in the middle. , Thickness 2.66mm. The muscular abdomen travels forward and downward, across the bifurcation of the maxillary artery and the occipital artery, and the distance from the styloid process to the beginning of the hyoid muscle is 1.90cm. It then travels on the superficial surface of the maxillary artery, ending at the posterior abdomen of the digastric muscle, and the distance between the stops The midpoint of the abdominal muscle fascia block is 1.33cm, and the distance to the root of the styloid process is 6.52tin. The parastyloid hyoid muscle starts from the back of the styloid process in the form of a muscular abdomen, and its starting point is 2.19cm from the root of the styloid process and 1.02cm from the starting point of the styloid hyoid muscle. The muscular abdomen is band-shaped, 3.12cnl long, 0.45tin wide, and 2.82mm thick. It runs forward and downward, and the fascia continues into the hyoid ligament at the posterior edge of the hyoid hyoid muscle. The additional head of the mandibular hyoid muscle starts with the aponeurosis near the rift valley near the temporal bone and is adjacent to the drum. The tendon continues below the middle of the mandible. The tendon travels forward and downward for 0.88 crn and fuses with the mandibular hyoid muscle. Excessive styloid processes can cause styloid process syndromes, which can cause pharyngeal foreign body sensation and pain. Due to the special positional relationship between styloid hyoid muscles and maxillary arteries, compression of blood vessels during muscle contraction may lead to insufficient blood supply to the brain and dizziness. Symptoms, prompting clinicians to consider the possibility of such abnormalities.
Styloid hyoid muscle styloid syndrome
- Styloid process syndrome, also known as Yidd's syndrome, is caused by excessively long styloid processes, or abnormal orientation and morphology, which cause it to interfere with adjacent blood vessels and nerves, sore throat, sore throat, swallowing pain, head and neck pain, and A general term for a series of clinical symptoms such as increased saliva.
Clinically alert to unexplained sore throat, foreign body sensation in the pharynx, and inadequacy of the upper neck. The neck should be palpated with one or two hands to facilitate the discovery of excessively long styloid processes, combined with curved tomography, and the front of the skull Radiographic and coronal scans can make a clear diagnosis. The full-thickness curved tomography can display the maxillary bone, maxillary sinus, and temporomandibular joint at the same time, and can provide better styloid process imaging results, so it can be used for routine examination.