Asarum plant morphology

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Plant morphology

1. Herba perenial is a perennial herb with a height of 10-30 cm. The rhizomes traverse and there are many slender roots. Leaves 2-3 pieces, heart-shaped or kidney-shaped heart-shaped, length and width are 8 to 12 cm, apex obtuse or short-tip; petiole length of about 15 cm. Flowers solitary in leaf axils, close to ground; perianth tube pot-shaped, purple, apically 3-lobed, lobes reeled outward; stamens 12, filaments and anthers long; ovary half lower, styles 6. Flesh succulent, hemispherical. Flowering in May, fruiting in June. Distributed in the Northeast and Shandong Province, Shanxi Province, Henan Province, Shaanxi Province and other places. Born in the mountain forest, in the shade of grass; cultivated.

2. Hua Xishen has long rhizomes and short internodes. 1 to 2 leaves, heart-shaped, 7 to 14 cm long, 6 to 11 cm wide, apex acute to long acute, slightly thin, sparsely pubescent on both surfaces; petiole length 10 to 15 cm. Perianth lobes flatten without rewinding; filaments longer than anthers. Capsule nearly spherical. Distributed in Shaanxi Province, Sichuan Province, Shandong Province, Anhui Province, Zhejiang Province, Jiangxi Province, Hubei Province, Hunan Province and other places. Born in valleys, streams and slopes under the forest.

3. Asarum is very similar to A. chinensis; the leaves are thick, and the hair is usually dense under the leaves; the petiole is hairy. Distributed in Jilin Province, Liaoning Province. Born in the valley shrubs and forest under damp and damp.


Airway Accessories

Objective To evaluate the methods and the effects of an airway management nursing team in clinical practice


The evidence based guidelines shows that Anesthesia breathing circuit components can help to reduce infections,
prevent cross contamination between patients and maintain normothermia.
Why single-use circuits
• Respiratory pathogens can be transmitted through breathing circuits used to provide anesthesia. This can put
reusable circuits at risk for contamination of the next patient.
• The reuse of breathing circuits puts both patients and anesthesiologists at risk for hospital acquired infections.
Disposable circuits can be an important part of prevention protocol.
• The OR has unique infection control issues compared with other clinical care areas-due to the patient`s
vulnerability and prolonged period under anesthesia. Consequently, microorganisms may be transmitted via
contamination of normally sterile sites with a patient`s own bacteria and transmission of bacteria to subsequent
patients in the OR.

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