Después de la elctura

DESPUÉS DE LA LECTURA
EJERCICIO VI
DISCUTE LO SIGUIENTE
1- ¿Qué te aporto la lectura?
2- ¿Qué aspecto fue lo más importante?
3- ¿Aprendiste algo nuevo?

Durante la lectura

DURANTE LA LECTURA
EJERCICIO II
CONTESTA LAS SIGUIENTES PREGUNTAS
1- ¿Qué hace la boca?
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2- ¿Por dónde pasa la comida hacia el estómago?
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3- ¿Dónde termina el proceso de la digestión?
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4- ¿Cuáles son los órganos accesorios?
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5- ¿Quién ayuda en el proceso de la digestión?
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EJERCICIO III
ESCRIBE LAS FUNCIONES DE LAS SIGUIENTES CONJUNCIONES
1- AND ________________________
2- WHERE ________________________
3- WHICH ________________________
4- ALSO ________________________
5- FINALLY ________________________
EJERCICIO IV
ESCRIBE 10 COGNADOS DE LA LECTURA
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EJERCICIO V
ESCRIBE EN ESPAÑOL LAS SIGUIENTES ORACIONES
1- It has received different names in the various parts of its course…
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2- …where provision is made for mechanical division…
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3- …which convey the food into the stomach…
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4- …the stomach is followed by the small intestine,…
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5- Finally the small intestine ends in the large intestine…
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6- The primitive digestive tube consists of two parts…
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Antes de la lectura

Unidad 1. Organización Discursiva
Objetivo: 1.2 Marcadores de Tiempo para Establecer Relaciones de Secuencia en
Descripciones de Proceso
Texto:

ANTES DE LA LECTURA
EJERCICIO I
EXPRESA TU OPINIÓN A LO SIGUIENTE
1- ¿Qué sabes del sistema digestivo?

Clase 6

The Digestive Apparatus
(Apparatus Digestorius; Organs Of Digestion)
The apparatus for the digestion of the food consists of the digestive tube and of certain accessory organs.
1
The Digestive Tube (alimentary canal) is a musculomembranous tube, about 9 metres long, extending from the mouth to the anus, and lined throughout its entire extent by mucous membrane. It has received different names in the various parts of its course: at its commencement is the mouth, where provision is made for the mechanical division of the food (mastication), and for its admixture with a fluid secreted by the salivary glands (insalivation); beyond this are the organs of deglutition, the pharynx and the esophagus, which convey the food into the stomach, in which it is stored for a time and in which also the first stages of the digestive process take place; the stomach is followed by the small intestine, which is divided for purposes of description into three parts, the duodenum, the jejunum, and ileum. In the small intestine the process of digestion is completed and the resulting products are absorbed into the blood and lacteal vessels. Finally the small intestine ends in the large intestine, which is made up of cecum, colon, rectum, and anal canal, the last terminating on the surface of the body at the anus.
2
The accessory organs are the teeth, for purposes of mastication; the three pairs of salivary glands—the parotid, submaxillary, and sublingual—the secretion from which mixes with the food in the mouth and converts it into a bolus and acts chemically on one of its constituents; the liver and pancreas, two large glands in the abdomen, the secretions of which, in addition to that of numerous minute glands in the walls of the alimentary canal, assist in the process of digestion.

3
The Development of the Digestive Tube.—The primitive digestive tube consists of two parts, viz.: (1) the fore-gut, within the cephalic flexure, and dorsal to the heart; and (2) the hind-gut, within the caudal flexure . Between these is the wide opening of the yolk-sac, which is gradually narrowed and reduced to a small foramen leading into the vitelline duct. At first the fore-gut and hind-gut end blindly. The anterior end of the fore-gut is separated from the stomodeum by the buccopharyngeal membrane the hind-gut ends in the cloaca, which is closed by the cloacal membrane.


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