There’s a bony projection at the end of the ulna, near your hand, called the ulnar styloid process. It fits into the cartilage of your wrist joint and plays an important role in the strength and flexibility of your wrist and forearm. Any sort of break in this area is called an ulnar styloid fracture.
Where are the styloid processes of ulna and radius?
The radius and the ulna have a styloid process at the distal end; they are also attachment sites for many muscles. The radius is smaller than the ulna.
What is the function of the styloid process of the radius and ulna?
The radial styloid process projects obliquely downward from the distal end of the radius. It serves as the point of attachment for the brachioradialis muscle and the radial collateral ligament.
Where is styloid located?
The styloid process of the ulna is a bony prominence found at distal end of the ulna in the forearm.
What’s a styloid 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.
Which one is bigger ulna or radius?
The ulna is usually slightly longer than the radius, but the radius is thicker. Therefore the radius is considered to be the larger of the two. It is a long bone, prism-shaped and slightly curved longitudinally. The radius is part of two joints: the elbow and the wrist.
What is the styloid process?
The styloid process is a cylindrical, slender, needle-like projection of varying lengths averaging 2 to 3 cm. The styloid process projects from the inferior part of the petrous temporal bone and offers attachment to the stylohyoid ligament and the stylohyoid, stylopharyngeus, and styloglossus muscles.
How long is a normal styloid process?
The styloid process is a bony projection, located just anterior to the stylomastoid foramen, the normal length of which is approximately 20-25 mm. Elongation of the process may cause various clinical symptoms such as neck and cervicofacial pain, described as Eagle’s syndrome.
Can you break your styloid process?
Fracture of the styloid process (SP) of temporal bone is an uncommon injuries. Fracture of the SP can be associated with the facial injuries including mandible fracture. However, injury to the SP may be concealed and missed diagnosis may lead to the improper or various unnecessary treatments.