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词汇 parenchyma
释义 parenchyma
noun[ U ]
uk /pəˈreŋ.kɪ.mə/ us /ˌper.eŋˈkiː.mə//pəˈreŋ.kə.mə/

parenchymanoun[U] (BODY ORGANS)


anatomy specialized
the parts of an organ that are involved in its main job, not the tissue that creates its structure:
Encephalitis is inflammation of the brain parenchyma.
The condition causes irreversible changes in lung parenchyma.
Related words
parenchymal
parenchymatous
It is often characterized as including inflammation of the parenchyma of the lung.
The lung parenchyma was spared, but the subpleural connective tissue and pericardium were invaded.
Fibrous tissues replaced a substantial portion of the liver parenchyma.
SMART Vocabulary: related words and phrases

Substances & structures in the body
abductor
accessorius
ACL
actin
adductor
fundus
funiculus
fusiform
glomerular
glomerulus
myosin
navicular
neuroendocrine
neurohormonal
neurohormone
tendinous
tendinum
tendo
tensor
Th

parenchymanoun[U] (PLANTS)


biology specialized
plant tissue consisting of simple cells that forms most of a plant's leaves, stems, roots, and fruit :
These leaves were tougher because high light in the canopy results in the development of thicker palisade parenchyma.
Samples were taken from fresh roots to determine the content of hydrocyanic acid in the root parenchyma.
Related words
parenchymal
parenchymatous
This tends to be associated with changes in the anatomy of the leaf, in particular a greater number of cells in the parenchyma layers.
Wheat stems store excess carbohydrates in the storage parenchyma cells.
Their larvae cause important injuries when feeding on parenchyma of the leaves and the central bud of the plant.
SMART Vocabulary: related words and phrases

Parts of plants
axil
bark
bilobed
blade
bulb
caning
cascara sagrada
corolla
endodermis
inflorescence
knot
pistil
rosella
seed coat
seed pod
sessile
shaw
sting
taproot
tubule

Examples of parenchyma


parenchyma
Modeling impact-initiated wave transmission through lung parenchyma in relation to the aetiology of exercise-induced pulmonary haemorrhage.
The palisade parenchyma is interpreted as a barrier to desiccation of the acorn and may have a photosynthetic function during the formation of the fruit.
The precise supply varies from case to case but, generally, only two-thirds of the parenchyma is connected to the central pulmonary arteries.
Most peripheral cholangiocarcinoma develop in the small ducts and grow in a nodular, massive or diffuse pattern with early infiltration into the hepatic parenchyma.
In the liver, only single macrophages were dispersed in the hepatic parenchyma, where they never aggregated and never contained melanin.
Nonetheless, less intense infections could produce lesser compromise of the parenchyma.
Following entry into the liver, the fluke burrows through the liver parenchyma before reaching its final site in the bile duct.
Nor were schistosomula detected penetrating the liver capsule or traversing the liver parenchyma to enter the hepatic portal system.
Rays are composed of upright parenchyma (50 m high; 15 m diameter).
Fibers and parenchyma cells are associated, but individual cells are nearly all disarticulated.
However, the reorganized mesophyll parenchyma cells contained cytoplasm denser than the normal cells (fig. 5).
Hatching occurs within 7-12 days through the egg side in contact with the leaf surface, and neonates initiate the feeding on the palisade parenchyma.
It is also present in the parenchyma and muscle of both male and female worms.
The problem is that many benign changes in the breast parenchyma and the skin also contain microcalcifications.
The pith is the most voluminous portion of the petiole and consists of soft, spongy parenchyma.
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
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