Organ (anatomy)

In biology, an organ or viscus is a collection of tissues joined in a structural unit to serve a common function. In anatomy, a viscus /ˈvɪskəs/ is an internal organ, and viscera is the plural form.

Organs are composed of main tissue, parenchyma, and "sporadic" tissues, stroma. The main tissue is that which is unique for the specific organ, such as the myocardium, the main tissue of the heart, while sporadic tissues include the nerves, blood vessels, and connective tissues. Functionally related organs often cooperate to form whole organ systems. Organs exist in all higher biological organisms, in particular they are not restricted to animals, but can also be identified in plants. In single-cell organisms like bacteria, the functional analogue of an organ is called organelle.

A hollow organ is a visceral organ that forms a hollow tube or pouch, such as the stomach or intestine, or that includes a cavity, like the heart or urinary bladder.

Organ systems

Two or more organs working together in the execution of a specific body function form an organ system, also called a biological system or body system. The functions of organ systems often share significant overlap. For instance, the nervous and endocrine system both operate via a shared organ, the hypothalamus. For this reason, the two systems are combined and studied as the neuroendocrine system. The same is true for the musculoskeletal system because of the relationship between the muscular and skeletal systems.

Viscera (Jenny Hval album)

Viscera is an album by Norwegian singer Jenny Hval, the first released under her own name. She previously released two albums as rockettothesky. Uncut placed it at number 42 on its list of the "Top 50 Albums of 2011."In Review Online placed it at number 8 on their list of the "Top 15 Albums of 2011."

Track listing

References

Viscera (disambiguation)

Viscera is the plural form of viscus, which refers to an organism's internal organs.

Viscera can also refer to:

Music

Sports