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Questions and Answers
Which organ is the site of further digestion in the digestive system?
Which organ is the site of further digestion in the digestive system?
What is the function of the small intestine in the digestive system?
What is the function of the small intestine in the digestive system?
Which organ connects the stomach to the mouth in the digestive system?
Which organ connects the stomach to the mouth in the digestive system?
What is the main function of the stomach in the digestive system?
What is the main function of the stomach in the digestive system?
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Which organ is responsible for secreting bile for emulsification of fat?
Which organ is responsible for secreting bile for emulsification of fat?
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Where does the production of digestive enzymes for the small intestine primarily occur?
Where does the production of digestive enzymes for the small intestine primarily occur?
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Which part of the gastrointestinal system is a main site for water absorption?
Which part of the gastrointestinal system is a main site for water absorption?
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Which organ aids in swallowing and provides mucus?
Which organ aids in swallowing and provides mucus?
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Which organ produces gastric enzymes for digestion?
Which organ produces gastric enzymes for digestion?
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What is the function of the epididymis in poultry?
What is the function of the epididymis in poultry?
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Which gland in poultry secretes a viscous substance that gives semen its odor?
Which gland in poultry secretes a viscous substance that gives semen its odor?
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Where is the ovum maturation site in poultry?
Where is the ovum maturation site in poultry?
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What is the function of the ampulla in poultry reproductive system?
What is the function of the ampulla in poultry reproductive system?
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Which part of the female reproductive system serves as the early site of fertilization in poultry?
Which part of the female reproductive system serves as the early site of fertilization in poultry?
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What is the function of the ductus deferens in poultry?
What is the function of the ductus deferens in poultry?
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Study Notes
Reproductive System
- The female reproductive system consists of the ovary, oviduct, uterus, cervix, vagina, and vulva.
- The ovary is the site of ova maturation and secretes estrogen.
- The ovum or egg yolk sac contains a lot of liquid.
- In hens, only the left ovary is active.
- Avians lay eggs every 24-26 hours, and their nutritional composition depends on the chicken's diet.
- No mating is required for egg production.
Tubular Structure and Function
- The fallopian tube connects to the uterine horn.
- The egg shell is formed in 20 hours, and color is added to the egg.
- The cervix is the neck of the uterus, and it protects the uterus from foreign materials.
- During pregnancy, the cervix secretes mucus to seal the uterus.
- The vagina is a tube that connects the cervix to the vulva and receives the penis.
- It serves as a passageway for the fetus.
Digestive System Structure and Function
- The digestive system provides proper feeds to animals.
- Digestion involves mechanical breakdown and enzymatic action.
- The parts of the digestive system include the mouth, bucal cavity, pharynx, esophagus, crop, stomach, small intestine, and large intestine.
- The mouth and bucal cavity are responsible for prehension, mastication, and insalivation.
- The pharynx is a common passage for feed and air.
- The esophagus is a muscular tube that connects the stomach to the mouth.
- The crop is an invagination of the esophagus and serves as a temporary food storage.
- The stomach is the site of feed storage, grinding, and mixing of food.
- The small intestine is the site of further digestion, and the large intestine is responsible for water absorption.
Accessory Glands and Their Functions
- The salivary gland provides mucus to aid in swallowing.
- Some animals have ptyalin in their salivary gland.
- The pancreas produces digestive enzymes for the small intestine.
- The liver secretes bile for the emulsification of fat.
Types of Animal Stomach Structure
- Monogastric/simple-stomach animals have a one-compartment stomach (e.g., pigs).
- Herbivorous monogastric animals have a functional cecum (e.g., horses, rabbits).
- Modified simple-stomach animals have a gizzard for mixing and grinding feed, a crop for temporary storage, and a proventriculus for secreting gastric enzymes.
- Ruminant/compound-stomach animals have a four-compartment stomach (e.g., cattle, carabao, sheep, goats).
Excurrent Ducts and Accessory Sex Glands
- The epididymis is a long, convoluted tube that connects the vasa efferentia to the testis.
- It is the site of maturation of spermatozoa before ejaculation.
- The ductus deferens is a muscular tube that propels spermatozoa from the epididymis to the ejaculatory duct.
- The urethra is a canal that passes semen and urine.
- The ampulla is an enlarged ductus deferens that temporarily stores sperm until ejaculation.
- The seminal vesicle produces fructose as a vehicle for sperm transport.
- The prostate gland surrounds the urethra and produces a viscous secretion that gives semen its odor.
- Cowper's gland is a small paired gland that produces a secretion that helps in sperm transport.
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Description
This quiz covers the tubular structures in the reproductive system of poultry, including the fallopian tube, uterine horn, and cervix. It also includes topics such as egg shell formation, site of implantation, and functions of different parts of the reproductive system.
