An independent part of the body that performs a specific function.
What is organ?
- An organ is a group of tissues together to form a structural unit in biology that has a single purpose.
- An organ sits between a tissue and an organ system in the hierarchy of life.
- Similar cell types come together to form tissues that perform a certain purpose.
- An organ is made up of a variety of tissues that work together to provide a certain function.
- For instance, the intestinal wall is made of both smooth muscle and epithelial tissue.
- An organ system, also known as a biological system or body system, is made up of two or more organs that cooperate to carry out a certain physiological function.
- The abdominal organs can be categorised as hollow or solid.
- The liver, pancreas, spleen, kidneys, and adrenal glands are the solid organs.
- The rectum, gallbladder, bladder, stomach, and intestines are among the hollow organs of the abdomen.
- A muscular, hollow organ, the heart is located in the thoracic cavity.
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