A&P 2 Lab Chapter 7 Images

Identify?

Lab Image 7-1

• the digestive system

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Lab Image 7-2

• the digestive system

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Lab Image 7-3

• digestive organs can have digestive aids, enzymes and hormones

• not all organs have all 3

Identify 1?

Lab Image 7-4

1. parotid gland

   • DA = saliva = moisten food

   • E = salivary amylase

Identify 1 and 2?

Lab Image 7-5

1. sublingual gland

2. submandibular gland

   • DA = saliva

   • E = salivary amylase

Identify 1?

Lab Image 7-6

1. tongue

   • function = roll food into balls (bolus) + initiate swallowing

Identify 1, 2 and 3?

Lab Image 7-7

• teeth

1. incisors

2. canine

3. premolar

Identify 1, 2, 3, and 4?

Lab Image 7-8

• teeth

1. incisor

2. canine

3. premolar

4. molar

Identify 1?

Lab Image 7-9

1. esophagus

   • function = transport food to the stomach (peristalsis = mechanical/physical digestion)

Identify 1, 2 and 3?

Lab Image 7-10

1. cardiac sphincter = lower esophageal

2. body with rugae = folds for expansion

3. pyloric sphincter

   • DA = HCI = denature proteins

   • E = pepsinogen (inactive), pepsin (active)

   • H = gastrin

Identify A?

Lab Image 7-11

A. pancreas

• DA = bicarbonate = neutralize HCI

• E = pancreatic amylase, trypsin, chymotrypsin, carboxypeptidase, lipase, DNase, RNase

Identify 1 and 2?

Lab Image 7-12

1. pancreatic duct

2. hepatopancreatic sphincter (sphincter of oddi)

   • empties into duodenum of small intestine

Identify 1, 2, 3, and 4?

Lab Image 7-13

1. gallbladder (stores)

   • DA = bile = emulsification of lipids

2. cystic duct

3. hepatic duct (common)

4. common bile duct

   • empties into duodenum

Identify 1, 2 and 3?

Lab Image 7-14

• liver (over 500 functions)

  • DA = bile = emulsification of lipids

1. bile duct (common)

2. hepatic portal vein

3. hepatic artery

Identify 1?

Lab Image 7-15

• small intestine

1. duodenum (terminal digestion & absorption of nutrients)

   • H = CCK and secretin

   • E = maltase, sucrase, lactase, dipeptidase

   • mechanical/physical = peristalsis + segmentation

Identify 2, 3, and 4?

Lab Image 7-16

• small intestine

2. jejunum

3. ileum

4. ileoceal valve → large intestine

Identify 1, 2, 3, and 4?

Lab Image 7-17

1. villi of mucosa layer

   • function = increase surface area

2. submucosa layer

3. circular muscle

   • muscularis layer

   • peristalsis + segmentation

4. longitudinal muscle

   • muscularis layer

   • peristalsis + segmentation

Identify 1, 2, 3, and 4?

Lab Image 7-18

• large intestine

  • function = defecation, form feces, symbiotic bacteria = E. coli, absorbs H2O

  • mechanical/physical = haustral churning (haustra = pouches)

1. cecum

2. appendix

3. ascending colon

4. transverse colon

Identify 1, 2, and 3?

Lab Image 7-19

• large intestine

1. descending colon

2. sigmoidal colon

3. rectum with anus

Identify?

Lab Image 7-20

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Lab Image 7-21

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Lab Image 7-22

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Lab Image 7-23

Identify?

Lab Image 7-24