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Tình hình là ngày mai lớp mình 1 vài nhóm sẽ nghe Moodle trong phòng Lab. Mình lên youtube và tìm được tapescript. Mọi người lấy về coi nha. Nhóm 1 mình nghe video Digestive System, không biết ácc nhóm khác ra sao...
Mọi người tham khảo, chúc mai làm bài tốt :">
In digestion, food is changed by the organs into a sizable form to be
absorbed by the body. Food in the mouth is mixed with saliva; saliva
begins to dissolve the food as the teeth grind and cut it. Food is
forced back into the throat, pharynx, by the tongue. Food in the pharynx
stimulates the swallowing reflex. The larynx is pulled upward to meet
the epiglottis and seal off the trachea. Food goes from the larynx to
the esophagus. Food moves down the esophagus by peristalsis. The
peristaltic wave reaches the esophageal sphincter and food enters the
stomach. The unique muscular structure of the stomach breaks up the food
into small pieces called "chyme". Chyme exists through the pyloric
sphincter into the duodenum of the small intestine. The major portion of
absorption and digestion occurs in the small intestine. The mucosa
secretes enzymes that supplement the digestive enzymes of the pancreas
and liver. This completes the chemical process of digestion.
The
walls are covered with villi, where nutrient absorption takes place.
The structure of each villus contains a capillary and lacteal to pick up
the digestive nutrients. The nutrients are transported by the blood to
all the cells of the body. The undigested food reaches into the
ileo-cecal valve and enters the large intestine or colon. The colon
absorbs water, manufactures vitamins, produces mucous, and form and
expels feces. Mass peristalsis pushes the feces into the rectum which
stimulates the defecation reflex.
Link youtube:
https://www.youtube.com/watch?v=b20VRR9C37Q
Mọi người tham khảo, chúc mai làm bài tốt :">
In digestion, food is changed by the organs into a sizable form to be
absorbed by the body. Food in the mouth is mixed with saliva; saliva
begins to dissolve the food as the teeth grind and cut it. Food is
forced back into the throat, pharynx, by the tongue. Food in the pharynx
stimulates the swallowing reflex. The larynx is pulled upward to meet
the epiglottis and seal off the trachea. Food goes from the larynx to
the esophagus. Food moves down the esophagus by peristalsis. The
peristaltic wave reaches the esophageal sphincter and food enters the
stomach. The unique muscular structure of the stomach breaks up the food
into small pieces called "chyme". Chyme exists through the pyloric
sphincter into the duodenum of the small intestine. The major portion of
absorption and digestion occurs in the small intestine. The mucosa
secretes enzymes that supplement the digestive enzymes of the pancreas
and liver. This completes the chemical process of digestion.
The
walls are covered with villi, where nutrient absorption takes place.
The structure of each villus contains a capillary and lacteal to pick up
the digestive nutrients. The nutrients are transported by the blood to
all the cells of the body. The undigested food reaches into the
ileo-cecal valve and enters the large intestine or colon. The colon
absorbs water, manufactures vitamins, produces mucous, and form and
expels feces. Mass peristalsis pushes the feces into the rectum which
stimulates the defecation reflex.
Link youtube:
https://www.youtube.com/watch?v=b20VRR9C37Q
