Monday, 16 December 2013

Human Nutrition Animation Resources & FAQs


Resources:

Human Digestive System Overview: http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter26/animation__organs_of_digestion.html  

Mastication: http://www.youtube.com/watch?v=iWdXbsebG7k

Swallowing: http://www.linkstudio.info/images/portfolio/medani/Swallow.swf
Peristalsis: http://www.bbc.co.uk/bitesize/standard/biology/animal_survival/the_need_for_food/revision/5/  

Digestion In Stomach: http://www.youtube.com/watch?v=URHBBE3RKEs

Large Intestine: http://www.youtube.com/watch?v=RAz44jLrpY0&hl=en-GB&gl=SG


Blood Glucose Level Regulation: http://www.mhhe.com/biosci/genbio/tlw3/eBridge/Chp27/animations/ch27/1_glucose_regulation.swf


Liver Functions & Cirrhosis: http://www.muschealth.com/video/Default.aspx?videoId=10143&cId=15&type=rel




FAQs:
Q1: How long does it take for food to be digested in a human stomach?A1: 1-2 hrs

Q2: What is lymph?A2: Yellowish fluid containing waste, debris, dead cells, pathogens, toxins, and undigested proteins.

Q3: What is the difference between lacteals and lymphatic vessels?A3: Lacteals (/Lymphatic capillaries) are small blind-ended tubes. Lymphatic vessels are large tubes formed by the joining of many lymphatic capillaries (refer to diagram below).

Q4: How is lymph moved along the lymphatic vessels without being pumped throughout the body by the heart?A4: Lymph is moved along the lymphatic vessels by the contraction of muscles surrounding the lymphatic vessel.

Diagram: http://3.bp.blogspot.com/-EYhQNyB3qZs/UWYJUmVTy8I/AAAAAAAAAhs/em8iPTaPUOE/s1600/lymph_capillary.jpg

Q5: How does blood containing glucose and amino acids circulate to other cells in the body?

A5: Blood flows into the central veins in the liver and finally into the hepatic vein to distribute glucose and amino acids to other cells in the body.

Diagram: http://3.bp.blogspot.com/-EYhQNyB3qZs/UWYJUmVTy8I/AAAAAAAAAhs/em8iPTaPUOE/s1600/lymph_capillary.jpg





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