--%>
Assignment Help - homework help

Avian digestive tube

Explain the special structures of avian digestive tube and also their respective functions?

E

Expert

Verified

Digestive tube of the birds has special structures:

a) The crop,

b) The proventriculus and

c) The gizzard.

Function of the crop is the temporary storage of the ingested food and it is generally a more dilated area of the avian esophagus. The proventriculus refers to the chemical stomach of birds where the food is mixed with the digestive enzymes. Gizzard is muscular pouch which serves as mechanical stomach where food is ground in order to increase the exposure area of food particles for the digestive enzymes to act.

   Related Questions in Biology

  • Q : Amphibian circulation

    Why the amphibian circulation is categorized as double and incomplete?

    		•
  • Q : Watson-Crick model According to the

    According to the Watson-Crick model determine the number of polynucleotide chains does a DNA molecule comprises?

    		•
  • Q : Differences between the signaling

    What are the similarities and differences  between the  signaling arrays and responses that are driven and associated with the “Jasmontates” in plants, and the “eicosanoids”; arachidonic acid cascade components in animals?  This is a large enough question th

    		•
  • Q : Perceptual Process - Organizational

    Perception is a process consisting of several sub-processes. We can take an input-throughput-output approach to understand the dynamics of the perceptual process. This approach emphasizes that there is input, which is processed and gives output. The stimuli in the environment - subjects, events,

    		•
  • Q : Dietary sugar restriction Why do

    Why do diabetic patients generally undergo dietary sugar restriction? Specify the major complications of the diabetes mellitus?

    		•
  • Q : Temporal summation and spatial

    Write down the differentiation between temporal summation and spatial summation of the muscle fibers? Give a brief description of tetany?

    		•
  • Q : What is High-Growth Organization

    High-Growth Organization: Explaining a company, stock, economy or something else performing better, or predicted to execute better, than its industry, the wider-market, or other economies. The high-growth stocks might generate significant wealth in a

    		•
  • Q : Carbohydrates explain the fact that

    explain the fact that glucose , fructose and galactose are isomers

    		•
  • Q : Why trees lose their green color in

    Why do certain trees lose their green color in autumn season?

    		•
  • Q : Fat-soluble and water-soluble vitamins

    Write down the differentiation between fat-soluble and water-soluble vitamins? Why can fat-soluble vitamins cause injury when ingested in high amount?

    		•