ANATOMY & PHYSIOLOGY Post-Lab Questions: (answer in complete sentences): 1. Wher

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ANATOMY & PHYSIOLOGY Post-Lab Questions: (answer in complete sentences): 1. Where does the digestive tract start & end? Fall 2016 2. What is the purpose of saliva? 3. Fetal pigs receive nourishment from their mother through the 4. The stomach of a fetal pig won't be empty because they also drink 5. Name the membranes that attach the internal organs to the body wall. 6. Name the ridges inside the stomach & give their function. 7. Name the 1* section of the intestine & give its function. 8. Give the function of sphincters & where can they be found in the digestive system. 9. Food leaves the stomach as a soupy, partly digested material called 10. Another name for the large intestine is the 11. What is the function of the large intestines? 12. List the structures of the digestive tract, in order, that food passes through from entering the tract to leaving 13. List the accessory structures of the digestive tract.

Explanation / Answer

1 Where the digestive tract starts and end?

Ans:- Digestion is the process of breakdown of food into simple components which get absorbed in to blood to carried out other life processes. Digestive tract is a part of digestive system starts with mouth and end with anus.

2 What is the purpose of saliva ?

Ans:- Saliva is the watery fluid present in the mouth and it helps chewed food to get moistened so that it can easily pass through from mouth to food pipe.

3 Fetal pigs receive nourishment from mother through the

Ans- Fetal pigs receive nourishment from mother through umbilical cord.

Umbilical cord connects navel of Fetal pig ( unborn pig) to the placenta of mother and supplies required nutrients.

4 The stomach of the fetal pig won’t be empty because they also drink

Ans- The stomach of the Fetal pig won’t be empty because they also drink amniotic fluid , yellowish , watery fluid serves as protective layer for Fetal pig in the uterus of mother.

5Name the membranes that attach the internal organs to the body wall.

Ans- Visceral layer of membranes attach the internal body organs to body wall.

6 Name the ridges inside the stomach and give their function

Ans- Gastric rogue ( Rouge) are the ridges or foldings present inside the stomach and the function of gastric rogue is increase surface area of stomach for further digestion of foods.

7 Name the 1st section of the intestine and give it’s function.

Ans- Duodenum is the 1st section and superior part of the intestine. It plays vital function in the digestion of partial digested food ( chyme) received from stomach through enzymes and it also absorbs nutrients from digested food.

8 Give the function of sphincters and where can they be found in the digestive system

Ans- Sphincters are body structures which prevent backward movements food. As per concern of digestive system, sphincters are found in stomach.

9 Food leaves the stomach as a soupy , partly digested material called

Ans- Chyme is term used for soupy , partly digested material that leaves from stomach and receives by small intestine.

10 Another Name for the large intestine is the

Ans- large intestine is also known as colon and it is connected to small intestine.

11 What is the function of large intestine

Ans- Large intestine mainly reabsorbs of water and mineral ions from the Indigested food received from small intestine and temporary store faeces to complete digestion process.

12 List the structures of the digestive tract, in order , that food passes through the tract to leaving.

Ans.- The list of organs or structures of the digestive tract, in order, that food passes through the tract to leaving is given as follow-

mouth

esophagus

stomach

small intestine

( Duodenum, Jejunum, Ileum)

large intestine

(    ascending colon , transverse colon, descending colon , sigmoid colon , rectum )

anus.

13 List the accessory structures of the digestive tract.

Ans:- Accessory structures of digestive tract are those organs and structures which help in the process of digestion without being actual part of it in indirect ways and are enlisted as tongue, salivary glands, pancreas, liver, and gallbladder.

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