"Pyelectasis" Natural Recordings by Native Speakers
Pyelectasis is a medical term that refers to the temporary dilation or thinning of the pleura, which are the two thin layers of tissue that surround the lungs and line the chest cavity. In some cases, pyelectasis can occur as a natural reflex after a cough or a chest movement, causing a temporary buildup of fluid in the pleural space. However, unexplained or persistent pyelectasis can be a sign of an underlying medical condition, such as a lung tumor, pneumonia, or a pleural effusion.
Pycnogonid refers to a type of marine animal, specifically a member of the class Pycnogonida, commonly known as sea spiders or pantopods. They are marine arthropods, related to arachnids but not spiders.
Pycnogonida, also known as sea spiders or Pantopoda, is a class of marine arthropods that are characterized by their long, slender bodies and a pair of pedipalps used for walking and sensing the environment. They have four pairs of walking legs, but no eyes, antennae, or exoskeleton, although some species have simple eye spots.<br><br>Pycnogonida are generally small, ranging in size from a few millimeters to several centimeters, and have a flattened, elongated body shape. They are found in oceans worldwide, from the surface waters to the deep sea, and are often associated with coral reefs, estuaries, and other coastal areas.<br><br>These arthropods are predators that feed on small crustaceans, mollusks, and other invertebrates, using their pedipalps to capture and subdue their prey. Despite their seemingly bizarre appearance and behavior, Pycnogonida are an interesting and primitive group of arthropods that have evolved over millions of years.
A pycnometer is a scientific instrument used to measure density by calculating the mass and volume of a sample. It consists of a container of known volume in which the sample is placed, and then the volume of the liquid displaced by the sample is calculated by measuring the difference in level before and after the sample has been added. By knowing the weight of the sample and the volume of liquid it displaces, the sample's density can be calculated as mass divided by volume. Pycnometers are commonly used in chemical and geological analysis, as well as in various industrial applications.
Pycnomorphic refers to a fossil of a plant that has retained its cellular structure, but has been compressed and preserved over time. The term is often used to describe fossils of ferns, mosses, and other non-seed-bearing vascular plants that have been flattened and preserved in a way that preserves their cellular details. The word "pycnomorphic" comes from the Greek words "pyknot", meaning "compressed", and "morphe", meaning "form".
Pycnostyle refers to a style of writing or a word structure characterized by its compactness, conciseness, and abundant use of words. It is often used in poetic or literary contexts to create a sense of density and complexity. In biology, it can describe a type of cell structure where the meristematic cells are close together.
Surgical incision into a renal pelvis to relieve retention of urine in conditions such as obstructive uropathy or hydronephrosis; included are cases of pyeloplasty, transureteropolyelostomy, and nephropexy, but not ureterosigmoidostomy.
Pyelocystitis refers to an inflammation of the renal pelvis and bladder. The renal pelvis is the area where urine collects before it is drained from the kidneys into the ureters. When inflammation occurs in this area, it can cause symptoms such as pain, frequency, and urgency urination, as well as bloody or cloudy urine.
A pyelogram is an imaging test that uses X-rays and a contrast dye to produce detailed pictures of the urinary tract, specifically the kidneys, ureters, and bladder. It is used to diagnose abnormalities in these organs, such as tumors, stones, or blockages.
A pyelogram (or pyelography) refers to a medical imaging test that involves injecting a contrast agent into the kidneys to visualize the ureters and urinary bladder on an X-ray image.
Pyelographic refers to the use of X-ray imaging to visualize the urinary system, especially the kidneys and the ureters. It specifically involves the injection of a contrast medium into the kidneys to delineate the structures surrounding them. The term 'pyelography' is often used interchangeably with IVU (intravenous urography), though IVU also involves the use of X-rays following an injection into a vein, leading to the dye flowing through the urinary system.
Pyelography is a medical imaging procedure that uses X-rays to visualize the urinary tract, particularly the kidneys, ureters, and bladder. It involves injecting a contrast medium, usually iodine-based, into the urinary system through the urethra or using a percutaneous approach (insertion of a catheter through the skin). The contrast medium outlines the urinary tract and allows for the detection of abnormalities, such as blockages, obstruction, or damage to the kidneys or ureters.
Pyelolithotomy is a surgical procedure used to remove a kidney stone that is located in the renal pelvis, the funnel-shaped area that collects urine from the calyces (the cupped structures within the kidney where urine collects) and channels it into the ureter (the tube that carries urine from the kidney to the bladder).<br><br>During a pyelolithotomy, the surgeon makes an incision in the back or side of the abdomen and enters the kidney to locate and remove the stone. This procedure is usually performed when other treatments, such as shockwave lithotripsy (a non-invasive procedure that uses shockwaves to break the stone into smaller pieces that can pass out of the body) or percutaneous lithotripsy (a minimally invasive procedure that uses a scope and instruments to break the stone into smaller pieces) are not effective.