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Perlia's nucleus, also known as nucleus of Perlia and abbreviated as NP, is a spindle-shaped nucleus located in the mesencephalon, a subdivision of the Edinger-Westphal nucleus [1] [2] situated between the right and left oculomotor nuclei. It is implicated in parasympathetic oculomotor functions, possibly including input to the iris and ciliary.
Globally, head and neck cancer accounts for 650,000 new cases of cancer and 330,000 deaths annually on average. In 2018, it was the seventh most common cancer worldwide, with 890,000 new cases documented and 450,000 people dying from the disease. [12] The risk of developing head and neck cancer increases with age, especially after 50 years.
The subparabrachial nucleus (also known as the Kölliker-Fuse nucleus, or diffuse reticular nucleus) regulates the breathing rate. It receives signals from the caudal , cardio-respiratory part of the solitary nucleus and sends signals to the lower medulla oblongata , the spinal cord , the amygdala and the lateral hypothalamus .
The Edinger–Westphal nucleus also called the accessory or visceral oculomotor nerve, is one of the two nuclei of the oculomotor nerve (CN III) located in the midbrain. [ 1 ] [ 2 ] [ 3 ] It receives afferents from both pretectal nuclei (which have in turn received afferents from the optic tract ). [ 4 ]
A large head and neck squamous-cell carcinoma of the tongue as seen on CT imaging Main article: Head and neck cancer About 90% [ 4 ] of cases of head and neck cancer (cancer of the mouth, nasal cavity, nasopharynx, throat and associated structures) are due to SCC.
The parapharyngeal space (also termed the lateral pharyngeal space), is a potential space in the head and the neck. It has clinical importance in otolaryngology due to parapharyngeal space tumours and parapharyngeal abscess developing in this area. It is also a key anatomic landmark for localizing disease processes in the surrounding spaces of ...
Last summer Len Barchanowicz, 45, experienced sharp pangs in his neck that felt like a pinched nerve. After about a week, his symptoms intensified and he experienced chest pain and trouble ...
More than one third of people with cancer pain describe the pain as moderate or severe. [53] Primary tumors in the following locations are associated with a relatively high prevalence of pain: [54] [55] Head and neck (67 to 91 percent) Prostate (56 to 94 percent) Uterus (30 to 90 percent) The genitourinary system (58 to 90 percent) Breast (40 ...