Traditional Culture Encyclopedia - Photography major - What is Walsh's position?
What is Walsh's position?
Photographic position: The subject is prone on the photographic bed, with the sagittal plane in the middle of the skull perpendicular to the bed surface and coincident with the center line of the bed, with the head tilted upward so that the auditory canthus line forms a 37-degree angle with the bed surface, and the chin of the mandible is placed on the bed for projection.
The photo shows that bilateral maxillary sinuses are symmetrically displayed, with inverted triangular shadows under the orbit and above the petrous part of the temporal bone, and the image density of normal maxillary sinuses is similar to that of the orbit. The frontal sinus is displayed in the upper part of the orbit. The honeycomb shadow between the orbit is anterior ethmoid sinus, and the nasal cavity is posterior ethmoid sinus on both sides. Sometimes if you want to observe the liquid level in the sinus cavity, you can take an upright position for sinus photography.
Sinusitis, runny nose and stuffy nose. In severe cases, symptoms of dizziness and headache will appear. The sinuses are distributed in the head, and the sinuses are distributed in the corresponding places of the nose, cheeks and forehead like butterflies.
Sinusitis is simply inflammation, effusion and pus in the sinus. When the forehead is inflamed, it will swell near the temple, which can generally be relieved by some methods. When you have a headache, you can apply cold compress to your forehead and neck, and gently massage your temples with your hands and fingers. This method can temporarily relieve the symptoms of headache.
Extended data:
Acute sinusitis is mostly caused by upper respiratory tract infection, and bacterial and viral infections can be complicated. The common bacterial flora are Streptococcus pneumoniae, Streptococcus hemolyticus and Staphylococcus, followed by Haemophilus influenzae and Moraxella catarrhalis, the latter being common in children. Other pathogenic bacteria include streptococcus, anaerobic bacteria and staphylococcus aureus. Most people caused by dental diseases are infected by anaerobic bacteria, and pus often stinks. Fungi and allergies may also be pathogenic factors.
The infection of acute sinusitis often comes from sinus infection, nasal infection, adjacent tissue infection, blood-borne infection, traumatic infection, systemic factors and poisoning factors.
Baidu encyclopedia-sinusitis
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