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

(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.

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.
References in periodicals archive ?
We tend to think of axial parenchyma as anatomically homogeneous, and it often appears to be, but perhaps our observations have been incomplete.
The fatty infiltration of activated Kupffer cells leads to subacute inflammation, causing a higher SU[V.sub.max] than the normal parenchyma (6,7).
Renal replacement lipomatosis is a degenerative process that consists of progressive replacement of renal parenchyma by mature fatty tissue.
However, later on sucrose is stored in the vacuoles of stem parenchyma cells.
The testes of Africa ostrich consisted of the capsule and parenchyma (Fig.
Single-slice ROIs were placed in the liver parenchyma and HCC lesions on the DCE-MRI, IVIM, and BOLD images.
If it is ruptured tracheobronchial tree or lung parenchyma, patients will admit likely massive life-threatening hemoptysis.
Histopathological Assessment in Lung Parenchyma. To analyze the integrity of collagen synthesis and deposition, three lung paraffin sections (4 [micro]m) were stained with Picrosirius red (1% Sirius red in saturated picric acid solution) for one hour at room temperature using standard methods.
The total intra-hepatic cyst volume, hepatic parenchyma volume, and liver volume (cysts plus parenchyma) were also evaluated using CT analysis system.
Areas of the tissues were obtained as follows: the adaxial surface of the epidermis, the abaxial surface of the epidermis, the chlorophyll parenchyma, the sum of the phloem areas, the average phloem area in one vascular bundle, the sum of the areas of the vascular bundle sheaths, the sum of the areas of the vascular bundles, the sum of the areas of the xylem, the average xylem area in one vascular bundle, the sum of the area of fibers, the average fiber area in one vascular bundle, and the whole leaf area captured in the image using square micrometers as the measurement unit.
Accuracy of segmenting lung parenchyma should be thoroughly analysed since the pathologies present on it should not be missed.