The measurement of the Compartments of the Body
Enviado por Mar Torres Castillo • 12 de Septiembre de 2016 • Trabajos • 569 Palabras (3 Páginas) • 272 Visitas
INGLES I
TP.2
READING AND COMPREHENSION
The measurement of the Compartments of the Body The weighing machine, which can be found in any clinic, is one of the doctor’s most useful tools for assessing the general health of his patient. It must always be kept in mind, however, that the body is not a uniform mass. It is composed of different compartments, each with a different function, and different diseases affect these compartments differently. For example, oedema, which is due to an increase in the extracellular water, is a typical feature of many cardiac diseases. In wasting diseases too, there is a reduction in the cell mass and in the energy reserve, but there is an increase in the supporting tissue, which is caused by oedema. If the size of the increase in the supporting tissue equals the size of the reduction in the other two compartments, then the total body weight remains constant. In cases like these, the weighing machine is too crude a tool to be an accurate guide to health. The different compartments of the body can be measured separately, but complicated laboratory and clinical procedures are necessary. The approximate size of the cell mass may be calculated from the size of the cell water, which is obtained from the difference between the total body water and the extracellular water. The size of the total body water may be measured by the dilution technique, using substances such as deuterium oxide and ethyl alcohol; these may be administered orally or by intravenous injection. The size of the extracellular water may be measured by injecting into the body substances such as sodium. The energy reserve can be determined by measurements of body density. The weight of the bone minerals and the extracellular proteins can be calculated only by finding the difference between the total body weight and all other parts. Measurement of the compartments of the body by these procedures has provided new insight into how the body works in health and in disease. The procedures are too complicated, however, for use in normal clinical practice.
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Answer the following questions about the text (in Spanish):
- Does a weighing machine measure the body as a uniform mass?
- Does a weighing machine measure separately the compartments of the body?
- What effect has oedema on the total body weight?
- If the total body weight remains constant, does this prove that the patient is healthy?
- Why is the weighing machine said to be a crude tool?
- Is it possible to measure the compartments of the body in any clinic?
- How is the size of the cell water calculated?
- What experimental techniques are used in the calculation of the size of the bone minerals and the extracellular proteins?
- Sí, la balanza pesa el cuerpo como una masa uniforme.
- No, no mide por separado las partes del cuerpo.
- El edema no afecta el peso total del cuerpo.
- No, porque aunque el peso del cuerpo se mantenga constante, no significa que esté saludable.
- Porque no es una guía precisa para calcular la salud.
- Si, es posible medir las partes del cuerpo en una clínica con procedimientos clínicos y de laboratorio.
- Se calcula mediante una técnica de dilución usando sustancias como el óxido de deuterio y alcohol etílico.
- El tamaño de huesos y proteínas extracelulares se calculan mediante la diferencia entre el peso corporal total y todas las otras partes del cuerpo.
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