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Rheum from a cat's eyes. Rheum (/ r uː m /; from Greek: ῥεῦμα rheuma 'a flowing, rheum') is a thin mucus naturally discharged from the eyes, nose, or mouth, often during sleep (contrast with mucopurulent discharge). [1] [2] [3] Rheum dries and gathers as a crust in the corners of the eyes or the mouth, on the eyelids, or under the nose. [3]
Pupillary response is a physiological response that varies the size of the pupil, via the optic and oculomotor cranial nerve. A constriction response ( miosis ), [ 1 ] is the narrowing of the pupil, which may be caused by scleral buckles or drugs such as opiates / opioids or anti-hypertension medications.
Although the pupillary response, in which the pupil dilates or constricts due to light is not usually called a "reflex", it is still usually considered a part of this topic. Adjustment to close-range vision is known as "the near response", while relaxation of the ciliary muscle to view distant objects is known as the "far response".
Mucus is a substance that covers the moist surfaces of your body, like your eyes, nostrils, lungs and gastrointestinal tract, according to the National Institutes of Health (NIH). Mucus has ...
Allergy – Immune system response to a substance that most people tolerate well; Allergic rhinitis, also known as Hay fever – Nasal inflammation due to allergens in the air; Rhinitis – Irritation and inflammation of the mucous membrane inside the nose; Rheum – Mucus naturally discharged from eyes, nose, or mouth during sleep
The color of your mucus can reveal some surprising things about your health. ... "Normal healthy mucus travels in a pattern from the front of the nose to the throat by a special way called mucus ...
Rhinorrhea is characterized by an excess amount of mucus produced by the mucous membranes that line the nasal cavities. The membranes create mucus faster than it can be processed, causing a backup of mucus in the nasal cavities. As the cavity fills up, it blocks off the air passageway, causing difficulty breathing through the nose.
By loosening up the mucus, expectorants make your cough more productive—making it easier for you to cough up mucus effectively and clear your chest congestion.