curare

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curare

(kyo͝orär`ē), any of a variety of substances originally used as arrow poisons by Native South Americans in hunting and in warfare. The main active substance of curare, tubocurarine, is an alkaloid extracted from Chondodendron tomentosum, Strychnos toxifera, and other plant species. The poison produces muscle paralysis by interfering with the transmission of nerve impulses at the receptor sites of all skeletal muscle. Muscles with many nerves, such as eye muscles, are affected first. In recent years curare has been put to medical use. When given in small quantities with general anesthesiaanesthesia
[Gr.,=insensibility], loss of sensation, especially that of pain, induced by drugs, especially as a means of facilitating safe surgical procedures. Early modern medical anesthesia dates to experiments with nitrous oxide (laughing gas) by Sir Humphry Davy of England
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, especially in abdominal surgery, curare ensures the desired relaxation of muscle tissue with a minimal concentration of the anesthetic, lessening the possibilities of anesthesia-induced complications. Curare is also used to relieve spastic paralysis, to treat some mental disorders, and to induce muscle relaxation for the setting of fractures.

Curare

 

(from Carib kurari), a mixture of condensed extracts from plants of the genera Strychnos, Chondodendron, and other South American groups.

Upon entering the blood, curare blocks the transmission of neural impulses from the motor nerves to the skeletal musculature, causing muscular relaxation. Curare was used for centuries by natives of South America as an arrow poison. It contains a large number of alkaloids of the curarine group. Curariform agents are used for therapeutic purposes.

curare

[kyü′rä·rē]
(organic chemistry)
Poisonous extract from the plant Strychnos toxifera containing a mixture of alkaloids that produce paralysis of the voluntary muscles by acting on synaptic junctions; used as an adjunct to anesthesia in surgery.

curare

, curari
1. black resin obtained from certain tropical South American trees, esp Chondrodendron tomentosum, acting on the motor nerves to cause muscular paralysis: used medicinally as a muscle relaxant and by South American Indians as an arrow poison
2. any of various trees of the genera Chondrodendron (family Menispermaceae) and Strychnos (family Loganiaceae) from which this resin is obtained
References in periodicals archive ?
We then checked the CURO students' transcripts to determine the actual time it took them to complete a bachelor's degree, as well as calculating a rate based on whole years.
In this model, we predicted the number of semesters to graduation by the students who had participated in CURO coursework (n=318), by the timing of their CURO research coursework.
In addition to the learning outcomes cited above, participation in CURO coursework can be associated with better outcomes for students in terms of graduation rates and time to graduation.
Drilling down into one specific cohort, we examined the transcripts of students who completed CURO coursework who matriculated as first-semester, first-year students in 2005.
Solo el subsector de nuevo desarrollo de interes social, Los Curos Parte Baja, tiene alguna independencia funcional ya que su gran extension f sica y su numerosa poblacion (8.
El 75% del equipamiento sociocultural del subsector de nuevos desarrollos El Carrizal funciona en instalaciones propias; mas, en el subsector de nuevos desarrollos para clase popular Los Curos solo el 40% esta en edificaciones propias, siendo administradas equitativamente por el poder estadal y el nacional.
En el nuevo desarrollo popular Los Curos son usados la iglesia, la cancha techada, las veredas y los atrios de las edificaciones.
En los subsectores casco tradicional La Parroquia, nuevo desarrollo residencial Los Curos y los barrios Buenaventura-La Candelaria, sus espacios socioculturales mas utilizados son frecuentados por la poblacion de cualquier edad, estando ampliamente restringido el uso a los minusvalidos, principalmente en Los Curos.