Topic 62 - Avian digestion Flashcards
1
Q
Words to include in food intake
A
- Beak
- Teeth (ø)
- Soft palate (ø)
- Parotis (ø)
- Oral-pharyngeal cavity
- Peristalsis
- Gallinaceace
- Ptyalin
- Hypothalamus
- Protein
- Temperature
- Egg production
2
Q
Words to include in esophagus
A
- Esophagus
- Crop
- Storing
- Softening
- Crop milk
- Nestling
- Prolactin
3
Q
Words to include in stomach
A
- Glandular stomach
- Gastric enzymes
- Mucosal gland
- Mucin
- Complex gland
- HCl
- Pepsinogen
- Mucin
- Muscular stomach
- Ceratinoid layer
- Gizzard glands
- Epithelial cells
- Motility
- Gizzard
4
Q
Words to include in small intestines
A
- Duodenum
- Peristaltic contraction
- Segemented contraction
- Ileum
- Villi
- Fermentation
- Digestive enzymes
- Intestinal
- Pancreatic
- Microbial
5
Q
Words to include in liver
A
- Double lobed
- Duodenum
- Gall bladder
- Bile
- Neuralize
- Emulsify
- Amylase
- Gall bladder
6
Q
Words to include in pancreas
A
- Double lobed
- Ducts
- Duodenum
- Pancreatic ezymes
- Lumen
- Enterocyte enzymes
- Brush border
7
Q
Words to include in cecum
A
- Paired
- Contractions
- Mixing
- Propulsive
- Microbial fermentation
- Volatile fatty acid
- Water absorption
- Urea
- Antiperistalsis
8
Q
Words to include in colon, cloaca
A
- Microbial digestion
- Volatile fatty acid
- Coprophagia
- Feces absorption
- Vitamins
- Antiperistalsis
- Urea
- Feces
- Water
- Peristalsis
9
Q
Food intake
Characteristics in birds
A
- Beak adapt to food intake
- Ø teeth
- Ø soft palate
- Ø parotis
- Unified oral-pharyngeal cavity
- Gallinaceae - ptyalin
10
Q
Food intake
Center of food intake
A
Hypothalamus
11
Q
Food intake
What is food intake influenced by
A
- High temperature and protein in food decreases food intake
- Low temperature and egg production increases food intake
12
Q
Esophagus
A
-
Crop:
- Storing
- Softening
-
Crop milk in pigeons
- During nestling
- Rich in fats and proteins, ø carbohydrates
- Production is facilitated by prolactin
- Peristalsis of esophagus passes food to the crop or directly to the stomach
13
Q
Stomach
A
- Divided into glandular and muscular part
-
Glandular stomach:
- Function: secretion of gastric enzymes
- Two types of glands:
-
Mucosal glands:
- Mucin
-
Complex glands:
- HCl
- Pepsinogen
- Mucin
-
Mucosal glands:
- Digestive enzymes are secreted in the glandular stomach, but they have their effect in the gizzard and duodenum
-
Muscular stomach:
-
Ceratinoid layer:
- Inner layer
- Consisting of secretion of gizzard glands, detached epithelial cells and fragments of food
-
Ceratinoid layer:
14
Q
Stomach
Motility
A
- Muscular stomach - duodenum
- Muscular stomach - aboral and oral passage
- Glandular stomach - aboral passage
- Motility is synchronized with glandular stomach
- Small stones in the gizzard helps to grind the hard seeds
15
Q
Small intestines
A
-
Duodenum:
- Peristaltic and segemntal contraction (related to the contractions of the stomach)
-
Ileum:
- Villi are longer and thinner than in mammals
- Task: fermentation
- Origin of digestive enzymes:
- Intestinal
- Pancreatic
- Microbial
