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The philtrum (Latin: philtrum from Ancient Greek φίλτρον phíltron, lit. "love charm" [2]) or medial cleft is a vertical indentation in the middle area of the upper lip, common to therian mammals, extending in humans from the nasal septum to the tubercle of the upper lip.
Paresthesia, also known as pins and needles, is an abnormal sensation of the skin (tingling, pricking, chilling, burning, numbness) with no apparent physical cause. [1] Paresthesia may be transient or chronic, and may have many possible underlying causes. [ 1 ]
The infraorbital nerve provides sensory innervation to the skin of the lower eyelid, [2] the side of the nose, [2] the moveable part of nasal septum, [citation needed] the anterior cheek, [citation needed] and part of the upper lip. [2] It does not provide motor supply to any muscles. [citation needed]
Hypoesthesia or numbness is a common side effect of various medical conditions that manifests as a reduced sense of touch or sensation, or a partial loss of sensitivity to sensory stimuli. In everyday speech this is generally referred to as numbness.
Within the spinal trigeminal nucleus, information is represented in a layered, or "onion-skin" fashion. The lowest levels of the nucleus (in the upper cervical cord and lower medulla) represent peripheral areas of the face (the scalp, ears and chin). Higher levels (in the upper medulla) represent central areas (nose, cheeks and lips).
Elevates upper lip Levator labii superioris alaeque nasi muscle: Snarl Levator anguli oris: Soft smile Nasalis: Flare nostrils Orbicularis oris muscle: Purse Lips Depressor septi nasi: Depresses nasal septum Procerus: Moves skin of forehead
A 'stiff upper lip' could trigger inflammation. For premium support please call: 800-290-4726 more ways to reach us
Chemotherapy-induced peripheral neuropathy is a progressive, enduring and often irreversible tingling numbness, intense pain, and hypersensitivity to cold, beginning in the hands and feet and sometimes involving the arms and legs caused by some chemotherapy agents. [7]