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The sphenethmoid bone forms as three bones: the lesser wings and the anterior part of the base. These two parts of the sphenethmoid may be distinguished as orbitosphenoids and presphenoid, respectively, although there is often some degree of fusion. Only the parasphenoid appears to be entirely absent in mammals.
The sphenoethmoidal recess is a small triangular space superior to the superior nasal meatus of the nasal cavity into which the sphenoidal sinus [1] [2] [3] opens. [4] The sphenoethmoidal recess is situated supero posterior to the superior nasal concha, [3] [2] between the superior nasal concha and the anterior aspect of the body of the sphenoid bone.
However, patients with isolated sphenoid sinusitis may complain of occipital or vertex headache, retro-orbital pain, otalgia, drowsiness, or meningitis-like symptoms. [7] A potential complication of sphenoidal sinusitis is cavernous sinus thrombosis. [7] If a fast-growing tumor erodes the floor of the sphenoidal sinus, the vidian nerve may be ...
These range from mild sprains and lacerations to joint dislocations, broken bones and severe neck or head injuries. Trampoline deaths are rare, but they do occur. Most trampoline injuries occur in ...
A number of diseases can cause bone pain, including the following: Endocrine, such as hyperparathyroidism, osteoporosis, kidney failure. [7]Gastrointestinal or systemic, such as celiac disease and non-celiac gluten sensitivity (both often occur without obvious digestive symptoms), inflammatory bowel disease (including Crohn's disease and ulcerative colitis).
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The pterion is the region where the frontal, parietal, temporal, and sphenoid bones join. [1] It is located on the side of the skull, just behind the temple.It is also considered to be the weakest part of the skull, which makes it clinically significant, as if there is a fracture around the pterion it could be accompanied by an epidural hematoma.
Vitamin D and calcium are essential for overall health, but don’t reduce the risk of falls or fractures in generally healthy older adults, according to a new draft recommendation from the US ...