parenchyma


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parenchyma

 [pah-reng´kĭ-mah]
the essential or functional elements of an organ, as distinguished from its framework, which is called the stroma. adj., adj paren´chymal, parenchym´atous.
parenchyma of prostate glandular substance consisting of small compound tubulosaccular or tubuloalveolar glands, making up the bulk of the prostate; it is surrounded by muscular substance and permeated by muscular strands.
renal parenchyma the functional tissue of the kidney, consisting of the nephrons.

pa·ren·chy·ma

(pă-reng'ki-mă), [TA]
1. The distinguishing or specific cells of a gland or organ, contained in and supported by the connective tissue framework, or stroma.
2. The endoplasm of a protozoan cell.
3. In the lung, consists of the gas-exchanging portion, excluding the radiographically visible blood vessels and bronchi.
[G. anything poured in beside, fr. parencheō, to pour in beside]

parenchyma

/pa·ren·chy·ma/ (pah-reng´kĭ-mah) [Gr.] the essential or functional elements of an organ, as distinguished from its stroma or framework.paren´chymalparenchym´atous
renal parenchyma  the functional tissue of the kidney, consisting of the nephrons.

parenchyma

(pə-rĕng′kə-mə)
n.
1. Anatomy The tissue characteristic of an organ, as distinguished from associated connective or supporting tissues.
2. Botany A simple plant tissue, composed of thin-walled cells and forming the greater part of leaves, roots, the pulp of fruit, and the pith of stems.

pa·ren′chy·mal, par′en·chym′a·tous (păr′ĕn-kĭm′ə-təs) adj.

parenchyma

[pəreng′kimə]
Etymology: Gk, para + enchyma, infusion
the functional tissue or cells of an organ or gland, as distinguished from supporting or connective tissue.

pa·ren·chy·ma

(pă-rengk'i-mă) [TA]
1. The distinguishing or specific cells of a gland or organ, contained in and supported by the connective tissue framework, or stroma.
2. The endoplasm of a protozoan cell.
[G. anything poured in beside, fr. parencheō, to pour in beside]
Parenchymaclick for a larger image
Fig. 246 Parenchyma . Transverse section of cells.

parenchyma

  1. a tissue composed of parenchyma cells which are thin-walled ‘general purpose’ plant cells that often have a packing function. Parenchyma cells remain alive at maturity and can become meristematic, as in INTERFASCICULAR CAMBIUM (see SECONDARY THICKENING). See Fig. 246 .
  2. 2 the loose, vacuolated cells that form much of the body tissue of platyhelminths.
  3. 3 any specific organ cells apart from connective tissues and blood vessels.

parenchyma

cells characteristic of an organ, contained within and supported by the stroma

parenchyma

the essential or functional elements of an organ, as distinguished from its stroma or framework.
References in periodicals archive ?
Although malignancies metastatic to the breast parenchyma have no characteristic radiographic presentation, they can present as a rounded or oval mass at the fat-parenchymal interface.
Emphysematous pyelonephritis is a potentially serious fulminant bacterial infection of the kidneys characterized by gas in the collecting system, renal parenchyma and perinephric tissues.
Fungal Presence and Growth in Wood Fibers and Parenchyma Cells
2011) found SB penetrating the epidermis and parenchyma of the stem bark, without reaching the fiber layer below the parenchyma or the phloem below the fibers.
Resistance of parenchyma cells in wood to degradation by brown rot fungi, Mycological Progress.
Parenchyma occurs in most leaves, stems and roots in small deposits that may be only a few cells thick, yet it is the primary component of large stems and fleshy organs specialised for the storage of starch, such as fruits and some seeds, and vegetative underground storage organs (USOs) such as roots, rhizomes, tubers and bulbs, herein collectively termed 'starchy tissues'.
This condition showed that gelatinized starch existed in the parenchyma cells in the form of floccules.
1, 2), multiple coronary fistulas from all three main coronary vessels draining to lung parenchyma was obtained.
Effect of pre-pubertal nutrition on mammary growth : Negative effects of high feeding level in the pre-pubertal period on mammogenesis, especially a reduced amount of parenchyma tissue and a lowered future MY have been observed in several studies in both dairy and beef heifers (Harrison et al.
2) These tumors usually show a tubular/glandular and tubulopapillary architecture, infiltrating renal parenchyma between intact glomeruli, and are typically associated with a desmoplastic stroma; however, a spectrum ranging from solid sheets to rhabdoid morphology has been described in these tumors.
The arrangement is generally by area of thorax, such as lung parenchyma, aorta, pericardium, and diaphragm.
6] The larvae prefer well-perfused parenchymal sites; the ventricles become populated with cysts when the parenchyma is filled.