The displacement or downward displacement of internal organs, especially the abdominal organs.

A group of organic compounds that are essential for normal growth and nutrition and are required in small amounts in…

The transparent, gel-like substance that fills the space between the lens and the retina of the eye, helping maintain its…

Animals that produce live offspring that develop inside the body of the mother, as opposed to laying eggs.

A pair of muscle-controlled structures in the larynx that vibrate to produce sound for speech and other vocalizations.

The electrical potential difference between two points in a circuit, which causes electric current to flow.

A type of muscle under conscious control, such as skeletal muscles that move the bones and limbs.

The part of the peripheral nervous system that controls voluntary movements of the body, especially the skeletal muscles.

The material that is expelled during vomiting, usually consisting of food, liquid, and digestive juices.

A sex chromosome in some animals, including birds, where it pairs with the Z chromosome to determine female sex.