PARENCHYMA Meaning and
Definition
-
Parenchyma refers to a type of tissue found in higher plants and animals that performs various functions within an organism. In plants, parenchyma tissue is a fundamental constituent of most organs, such as leaves, stems, and roots. It consists of thin-walled cells with a prominent nucleus and abundant cytoplasm. These cells are typically alive at maturity and possess the ability to divide and differentiate. Parenchyma tissue functions in the storage of nutrients, gas exchange, and photosynthesis. It also plays a crucial role in plant growth and development by providing mechanical support.
In animals, parenchyma tissue is the functional component of an organ and is distinct from the supporting connective tissue. It comprises the bulk of organs like the liver, kidney, and lungs, and is responsible for their specific functions. For instance, in the liver, parenchyma cells, i.e. hepatocytes, are involved in metabolic activities, such as detoxification and synthesis of proteins. In the kidneys, the parenchyma consists of nephrons, which carry out the filtration and reabsorption processes. Similarly, in the lungs, parenchymal tissues facilitate gas exchange by providing a large surface area for diffusion.
Overall, parenchyma is a vital tissue type in both plants and animals, serving as the functional unit of many organs. Its diverse roles and adaptability contribute to the overall functioning and survival of organisms.
-
1. The distinguishing or specific tissue of a gland or organ, contained in and supported by the connective-tissue framework, or stroma. 2. The endoplasm of a protozoan cell.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
-
In anat., the spongy substance forming the cellular tissue in the interstices of the viscera; in bot., the cellular tissue or pith of plants.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
Common Misspellings for PARENCHYMA
- oarenchyma
- larenchyma
- -arenchyma
- 0arenchyma
- pzrenchyma
- psrenchyma
- pwrenchyma
- pqrenchyma
- paeenchyma
- padenchyma
- pafenchyma
- patenchyma
- pa5enchyma
- pa4enchyma
- parwnchyma
- parsnchyma
- pardnchyma
- parrnchyma
- par4nchyma
Etymology of PARENCHYMA
The word "parenchyma" originates from the Ancient Greek terms "para" meaning "beside" or "next to", and "enkyma" meaning "infusion" or "injection". "Para" suggests that this type of tissue is located adjacent to another type of tissue, while "enkyma" implies that the tissue is infused or filled with plant or animal matter. This term was first used by the Greek physician Galen to describe certain tissues found in animals, and was later adopted by botanists to describe a specific type of plant tissue.
Infographic
Add the infographic to your website:
