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Situs solitus (from Latin 'usual site') is the medical term referring to the normal position of thoracic and abdominal organs. Anatomically , this means that the heart is on the left with the pulmonary atrium on the right and the systemic atrium on the left along with the cardiac apex.
Visceral pain is pain that results from the activation of nociceptors of the thoracic, pelvic, or abdominal viscera (organs). Visceral structures are highly sensitive to distension (stretch), ischemia and inflammation , but relatively insensitive to other stimuli that normally evoke pain such as cutting or burning.
Splanchnology is the study of the visceral organs, i.e. digestive, urinary, reproductive and respiratory systems. [1] [2] [3] [4]The term derives from the Neo-Latin splanchno-, from the Greek σπλάγχνα, meaning "viscera".
Neither levocardia nor dextrocardia are indicative of the orientation of the visceral organs, which can be in situs solitus, where the remainder of the organs are on normal side as well; or situs inversus, in which the viscera (stomach, liver, intestines, lungs, etc.) are on the opposite side as normal. The latter condition may or may not be ...
Leishmaniasis is a wide array of clinical manifestations caused by protozoal parasites of the Trypanosomatida genus Leishmania. [7] It is generally spread through the bite of phlebotomine sandflies, Phlebotomus and Lutzomyia, and occurs most frequently in the tropics and sub-tropics of Africa, Asia, the Americas, and southern Europe.
The term "visceral" is contrasted with the term "parietal", meaning "of or relating to the wall of a body part, organ or cavity". [9] The two terms are often used in describing a membrane or piece of connective tissue, referring to the opposing sides.
"Ptosis" being the defining term, any or all of the organs may be displaced downward. When only the intestines are involved, the condition is known as enteroptosis. When the stomach is found below its normal position, the term gastroptosis is used. The condition exists in all degrees of severity and may not give rise to any adverse symptoms.
The equivalent term for animals is left posterior quadrant. Important organs here are: the descending colon and sigmoid colon; the left ovary and fallopian tube; the left ureter; The left upper quadrant (LUQ) extends from the median plane to the left of the patient, and from the umbilical plane to the left ribcage.