What are the histological features of spleen?
Normal spleen histology (diagram). Like every other organ, the spleen consists of stroma and parenchyma. The stroma of the spleen is composed mainly of a network of reticular connective tissue. This mesh provides support for blood cells and cells of the immune system (lymphocytes, macrophages, and dendritic cells).
Does a bird have a spleen?
The spleen is located in the abdomen and is situated dorsally at the angle between the proventriculus, the gizzard, and the liver (Powers 2000a) . In Ptarmigan, it is triangular and pink to red-brown. The spleen and bursa of Fabricius in birds are organs that play an important role in fighting parasite infections.
What is the function of the spleen in poultry?
The function of Chicken Spleen Its spleen functions as a major blood-filtering organ and is the major source of antibody production. 2. It is the main organ for the proliferation of plasma cells which takes place in the red pulp into the chicken spleen.
Do pigeons have spleens?
In birds, the spleen does not play an important role in the storage of erythrocytes or in erythropoiesis. The shape, size and mass varies amongst species. The spleen of the chicken is egg-shaped, in pigeons it has an oval shape and in waterfowl a pyramidal shape.
What is avian physiology?
Description. Sturkie’s Avian Physiology is the classic comprehensive single volume on the physiology of domestic as well as wild birds. The Sixth Edition is thoroughly revised and updated, and features several new chapters with entirely new content on such topics as migration, genomics and epigenetics.
Do chickens have a spleen?
The chickens’ spleen serves as the largest peripheral lymphoid organ, but little immunological research has been conducted on that spleen during postembryonic development.
Is chicken spleen edible?
The nutritional properties of different food products are always interesting. In this case, spleen is an animal-based food that provides a good amount of vitamin C, with a 3.5 oz (100-gram) serving of spleen providing 45.5 mg.
Do turkeys have spleens?
The spleen is enlarged, congested and mottled, and contains irregular greyish-yellowish foci. Right: normal spleen. Epidemiological, pathological, serological and virological investigations are reported on turkey haemorrhagic enteritis virus (THEV) infection in Hungarian turkey flocks.
Do birds have 2 livers?
Adult birds can have a yellow-tan liver if on a high fat diet and the organ may be soft. The adult bird usually has a dark red to red brown colored liver. The avian gallbladder is attached to the liver lobe and can be easily examined by moving the liver to one side.
What is the structure of spleen?
The spleen is the largest lymphatic organ in the body. Surrounded by a connective tissue capsule, which extends inward to divide the organ into lobules, the spleen consists of two types of tissue called white pulp and red pulp. The white pulp is lymphatic tissue consisting mainly of lymphocytes around arteries.
What are 3 functions of the spleen?
Your spleen:
- Stores blood.
- Filters blood by removing cellular waste and getting rid of old or damaged blood cells.
- Makes white blood cells and antibodies that help you fight infection.
- Maintains the levels of fluid in your body.
- Produces antibodies that protect you against infection.
How does avian anatomy and physiology differ from mammals?
The avian respiratory system is different from mammals in that it has separate ventilatory and gas exchange compartments, making it highly efficient compared with other vertebrates. This compartment includes the major airways, an air sac system, and the thoracic skeleton with its associated muscles.
What are the major reproductive organs of the female avian?
The reproductive system of the female chicken is in two parts: the ovary and oviduct. The reproductive system of the female chicken is in two parts: the ovary and oviduct. Unlike most female animals, which have two functioning ovaries, the chicken usually has only one.