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- An organ is an anatomically distinct structure of the body composed of two or more tissue types. Each organ performs one or more specific physiological functions. An organ system is a group of organs that work together to perform major functions or meet physiological needs of the body.
pressbooks-dev.oer.hawaii.edu/anatomyandphysiology/chapter/structural-organization-of-the-human-body/
It is convenient to consider the structures of the body in terms of fundamental levels of organization that increase in complexity: atoms, molecules, organelles, cells, tissues, organs, organ systems, and organisms (Figure \(\PageIndex{1}\)).
- Functions of Human Life
The different organ systems each have different functions...
- Overview of Anatomy and Physiology
Even the three-dimensional structure of certain molecules is...
- Functions of Human Life
An organ is an anatomically distinct structure of the body composed of two or more tissue types. Each organ performs one or more specific physiological functions. An organ system is a group of organs that work together to perform major functions or meet physiological needs of the body.
An organ is an anatomically distinct structure of the body composed of two or more tissue types. Each organ performs one or more specific physiological functions. An organ system is a group of organs that work together to perform major functions or meet physiological needs of the body.
- Lindsay M. Biga, Sierra Dawson, Amy Harwell, Robin Hopkins, Joel Kaufmann, Mike LeMaster, Philip Mat...
- 2019
- The Levels of Organization
- Section Summary
- Glossary
To study the chemical level of organization, scientists consider the simplest building blocks of matter: subatomic particles, atoms and molecules. All matter in the universe is composed of one or more unique pure substances called elements, familiar examples of which are hydrogen, oxygen, carbon, nitrogen, calcium, and iron. The smallest unit of an...
Life processes of the human body are maintained at several levels of structural organization. These include the chemical, cellular, tissue, organ, organ system, and the organism level. Higher levels of organization are built from lower levels. Therefore, molecules combine to form cells, cells combine to form tissues, tissues combine to form organs,...
cell
1. smallest independently functioning unit of all organisms; in animals, a cell contains cytoplasm, composed of fluid and organelles
organ
1. functionally distinct structure composed of two or more types of tissues
organ system
1. group of organs that work together to carry out a particular function
An organ is an anatomically distinct structure of the body composed of two or more tissue types. Each organ performs one or more specific physiological functions. An organ system is a group of organs that work together to perform major functions or meet physiological needs of the body.
- OpenStaxCollege
- 2013
Feb 24, 2023 · An organ is an anatomically distinct structure of the body composed of two or more tissue types. Each organ performs one or more specific physiological functions. An organ system is a group of organs that work together to perform major functions or meet physiological needs of the body.
An organ is an anatomically distinct structure of the body composed of two or more tissue types. Each organ performs one or more specific physiological functions. An organ system is a group of organs that work together to perform major functions or meet physiological needs of the body.
