Intestines

Question 0

Secretin final effect

Answer 0

increases pH

Question 1

Intestinal Enteroendicrine Cells secrete

Answer 1

1. Secretin

2. CCK (Cholecystokinin)

Question 2

Paneth Cells secrete

Answer 2

lysozyme

Question 3

Paneth cell location

Answer 3

deep in intestinal crypts in duodenum & jejunum

Question 4

Paneth cell granule direction

Answer 4

face lumen of crypt

Question 5

lysozyme

Answer 5

bacteriocidal helps protect lining of the intestine

Question 6

Plica Circulares

Answer 6

• gross structures
• circular folds of mucosa & submucosa
• pronounced in jejunum

Question 7

What increases surface area in small intestine?

Answer 7

length, Plica circulares, villi, microvilli,

Question 8

Tunica Muscularis in ALL digestive system tubes

Answer 8

inner layer = circular smooth m.

outer layer = longitudinal smooth m.

Question 9

Small intestine ID features

Answer 9

1. Villi

2. Enterocytes & Goblet cells

Question 10

Sm. Intestine Lamina Propria

Answer 10

1. Central lacteals
2. Strands of smooth mm.
3. Intestinal Crypts/Glands

Question 11

Central Lacteals

Answer 11

• transport lymph & lipids

- in center of each villus

Question 12

Brunner’s glands

Answer 12

• in duodenum
• mostly mucous secreting cells
• increase pH of acidic chyme

Question 13

Intestinal Crypts/Glands

Answer 13

epithelial-lined spaces

Question 14

Lamina Subglandularis parts

Answer 14

stratum compactum

stratum granulosum

Question 15

Lamina Subglandularis location

Answer 15

• deepest LP & in proximal jejunum
• stomach too
• ONLY carnivores

Question 16

Intestinal Enteroendocrine cell morphopologies

Answer 16

• acidophilic granules toward LP

- unstained cytoplasm around nucleus (HALO)

Question 17

Secretin stimulates

Answer 17

pancreatic duct cells to release bicarbonate to increase chyme’s pH

Question 18

CCK stimulates

Answer 18

pancreatic acini to secrete digestive enzymes & gallbladder contraction

Question 19

Intestinal nerve plexuses

Answer 19

• autonomic ganglia not surrounded by CCT
• responsible for peristalsis
  
  • submucosal plexus
  • myenteric plexus

Question 20

Large intestine key features

Answer 20

1. NO villi
2. few enteroendocrine cells
3. thin muscularis mucosa

Question 21

Taenia coli

Answer 21

• longitudinal bands of smooth muscle seen grossly

- in horses, pigs, ppl