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The concept of nociception does not necessarily imply any adverse, subjective feeling; it is a reflex action. The second component is the experience of "pain" itself, or suffering—i.e., the internal, emotional interpretation of the nociceptive experience. Pain is therefore a private, emotional experience.
When an opossum is "playing possum", the animal's lips are drawn back, the teeth are bared, saliva foams around the mouth, the eyes close or half-close, and a foul-smelling fluid is secreted from the anal glands. The stiff, curled form can be prodded, turned over, and even carried away without reaction.
Medications like NSAIDs or antibiotics, such as doxycycline, can cause inflammation in the esophagus. Infections, such as strep throat or thrush, can cause swallowing problems affecting the throat.
The common opossum (Didelphis marsupialis), also called the southern or black-eared opossum [2] or gambá, and sometimes called a possum, is a marsupial species living from the northeast of Mexico to Bolivia (reaching the coast of the South Pacific Ocean to the central coast of Peru), including Trinidad and Tobago and the Windwards in the Caribbean, [2] where it is called manicou. [3]
Also known as benign migratory glossitis, experts cover the symptoms, causes, diagnosis, and treatment of geographic tongue. Also known as benign migratory glossitis, experts cover the symptoms ...
In mammals, the Virginia opossum (commonly known simply as possums) is perhaps the best known example of defensive thanatosis. "Playing possum" is an idiomatic phrase which means "pretending to be dead". [13] It comes from a characteristic of the Virginia opossum, which is famous for reacting with a death-like posture when threatened.
It uses this ability to burrow in the ground. The burrow can be 30 mm in diameter and 40 cm in length. The mouse-opossum then fills the burrow with leaves to create a nest. More commonly it creates nests in trees, especially in abandoned bird nests. When threatened it can become aggressive, opening its mouth and hissing or making a clicking ...
In this inactive state it lies limp and motionless on its side, mouth and eyes open, tongue hanging out, and feet clenched. [22] Fear can also cause the opossum to release a green fluid from its anus with a putrid odor that repels predators. [23] [25] Heart rate drops by half, and breathing rate is so slow and shallow it is hardly detectable. [22]