7 Label the following structures on Figure Crular layer taries a Longitudinal ay

ID: 3524706 • Letter: 7

Question

7 Label the following structures on Figure Crular layer taries a Longitudinal ayer of smooth muscle Lumen Mucos all Bv ber of 714, f ge ofr a Serosa Lumen Submucosa unn bloo muscularis noUN 24.31 Tissue layers of the alimentary canal. 8 Matching: Match the following with the correct definition Salivary amy Protein-coated lipid droplets that are absorbed Bile salts B. Protein-digesting enzymes) produced by the stomach Emulsifies/emulsity fats Micelles D. Clusters of bile salts and digested lipids in the small intestine B Pepsin Required to activate pepsinogen Beginks) carbohydrate digestion in the mouth Chylom G. Structure into which lpids are absorbed Enzymets) that digests) ipids into free atty acids and monogycerides, Pancreatic lipase Hydrochloric acid Lacte Folds of the small intestinal mucosa are known as a. microvilli b. arcular folds C intestinal oypts. 9 24 10 Explain the importance of emulsification in lipid digestion. 660 Exploring Anatomy & Physiology in the Laboratory

Explanation / Answer

Ans 7)

On the left side from the top – Sub-mucosa, Lumen, Muscularis Mucosae

Top two labeling from left – Circular layer of smooth muscle, Longituidinal layer of smooth muscle

Bottom three labeling from left – Mucosa, Serosa

Ans 8)

Salivary Amylase

Begin carbohydrate digestion in the mouth

Bile salts

Emusify fat

Micelles

Cluster of bile salts and digested lipids in small intestine

Pepsin

Protein digesting enzymes produced by the stomach

Chylomicrons

Protein coated lipid droplets that are absorbed

Pancreatic Lipase

Enzymes that digest lipids into free fatty acids and monoglycerides

Hydrochloric acid

Required to activate pepsinogen

Lacteal

Structure into which fats are absorbed

Ans 9) Vili

The mucosa of the small intestines has smaller folds which are circular and these help in the passage of the food along the intestines. This helps in increasing the surface area for absorption. The small folds are called villi and each of the villi has number of small projections known as microvilli

Ans 10) Emulsification is a process where the large fat globules or molecules are broken into smaller molecules to make them more water soluble. The more the molecule is soluble in water, easier it becomes to digest the particle. With the emulsification of the fat globule or molecule, it increases the efficiency of the enzyme to break down the fats into fatty acids and glycerol and this helps in easy digestion of the food through small intestines. The digestive enzyme pancreatic lipase digests the fat globules by breaking the into smaller emulsion droplets and hence makes it easy to digest fat.