"Metapterygium" Pronounce,Meaning And Examples

"Metapterygium" Natural Recordings by Native Speakers

Metapterygium

"Metapterygium" Meaning

The metapterygium is a paired bony structure found in the skeletons of many vertebrates, including reptiles, birds, and some mammals. It is located along the dorsal surface of the humerus, near the elbow, and is thought to be a vestigial remnant of a wing-like structure that was present in the ancestors of these vertebrates. In modern birds, the metapterygium has evolved to form part of the keel-shaped breastbone, which anchors powerful flight muscles. In non-avian theropod dinosaurs and some extinct reptiles, the metapterygium is more prominent and has been interpreted as a potential attachment site for wing muscles.

"Metapterygium" Examples

Metapterygium Usage Examples

Definition:

Metapterygium refers to a hypothetical precursor to the wing of modern birds, thought to have been present in the early synapsids and reptiles.

Examples:

1. Fossil Discovery: Paleontologists found a remarkable metapterygium in the fossilized remains of a 300-million-year-old reptile, providing a crucial link in the evolution of bird wings.
2. Evolutionary Theory: According to scientists, the metapterygium likely played a crucial role in the development of modern bird flight, as it allowed early species to glide and maneuver through the air.
3. Comparative Anatomy: By studying the metapterygium in modern birds, researchers were able to gain valuable insights into the embryonic development of wing structures and their relationship to other skeletal features.
4. Museum Exhibition: A new exhibit at the Natural History Museum featured a stunning reconstruction of a metapterygium, allowing visitors to get a glimpse into the murky waters of evolutionary history.
5. Textbook Description: In a comprehensive biology textbook, the metapterygium was described as a key transitional structure between reptilian and avian wing morphology, highlighting its significance in understanding the evolution of flight.

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Metapsilosis

Metapsilosis is a term used in medicine to describe a type of fungal infection that can occur in hospitals and healthcare settings. It is caused by the fungus Scopulariopsis brevicaulis and is typically seen on the skin of patients who are already hospitalized or receiving invasive medical care. The infection typically starts as a small, red, itchy patch on the skin, which may develop into a larger, crusted sore. In severe cases, the infection can spread to underlying tissues and cause more serious complications. Metapsilosis is often associated with human skin and is typically seen in people who are immunocompromised, such as those with weakened immune systems due to disease or treatment. It is considered an opportunistic infection, meaning that it takes advantage of the patient's compromised immune system to cause infection. Treatments for metapsilosis typically involve antifungal medications, such as topical creams or ointments, and may also include surgical debridement to remove dead skin tissue. Prevention of the infection is also important, and this may involve strict adherence to hygiene practices, such as frequent hand washing and use of personal protective equipment (PPE) by healthcare workers.

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Metarteriole

A metarteriole is a type of small blood vessel that connects arterioles to capillaries in the circulatory system. It is a microscopic vessel that is smaller than an arteriole and larger than a capillary. The metarteriole plays a crucial role in regulating blood flow to the capillaries by controlling the amount of blood that enters the capillary bed.