LAB 3

Question 1

Salivary glands

• parotid
• submandibular
• sublingual

Answer 1

secrete saliva

• serous fluid (mumps)
• mixed serous/mucous
• mucous

Question 2

Teeth

• incisors
• canines
• premolars
• molars

Answer 2

• biting
• tearing
• both crushing and grinding

Question 3

Esophagus

-lower esophageal sphincter (LES)

Answer 3

-prevent acid reflux

Question 4

Stomach

• Rugae
• pyloric sphincter

muscularis externa:

• longitudinal layer
• circular layer
• oblique layer

Answer 4

• folds for expansion (plasticity)
• boundary between antrum and duodenum, regulates release of chyme.
• peristalsis
• both mechanical digestion

Question 5

small intestine

• major papilla
• minor papilla

Ileum:
-ileocecal valve

Answer 5

• inferior, controls release of pancreatic enzymes and bile.
• superior

-keep waste in large intestine, prevent back flow.

Question 6

Large intestine

Answer 6

absorb water and compaction of feces

Question 7

Billiary tree

-gall bladder

Answer 7

-store and concentrate bile

Question 8

Liver

Answer 8

filter blood coming from digestive tract before going through the rest of the body.

Question 9

Pancreas

Answer 9

releases hormone and digestive enzymes

Question 10

salivary glands

• mucus acini
• serous acini

Answer 10

• secrete mucous (sublingual)

- secrete serous (parotid)