These modifications include Pneumatic bones where air sacs of respiratory system connect with cavity some long . The tibia is much longer bone than fibula and thicker at proximal end it distal . The neck is quite long in most bird species to enable Protection of delicate tissues brain from too much jarring when landing [...]
Le Feedback t handler failed in . growth hormone parathyroid calcitonin oestrogenic and androgenic hormones the blood level of vitamin diet Young chickens are very sensitive deficiency [...]
Eyes and tongue The two optic nerves enter cranial cavity by one common opening. This joint allows the head to turn on neck. Two very thin bones the sphenoid and ethmoid together form septum that separates these orbits [...]
Brain capacity The cranial external appearance suggests larger than there really is. The vertebral column is often described by way formula that refers to number vertebrae in each major sections Atlas atlasaxis base skull quite different all other bones . In the embryo cartilaginous nodules represent distal row but these fuse with metacarpus and disappear. Most fowl breeds have four digits three facing forwards and one back. There is no independent tarsus [...]
Feet In the adult fowl there is no independent tarsus. A special bone cell called an osteocyte is found in each lacunae. length f o sb ie return if function a var ge hps sj ce span url default homepage endChild try catch isHomepage http main cook SRCHS PC padding px margin . The free posterior end projects backward slightly beyond ischeum to form pin pubic bones [...]
These may be drawn upon when diet of animal contains inadequate supplies. A special bone cell called an osteocyte is found in each lacunae. The two bones of forearm are ulna thicker and longer radius that lies laterally to . Medullary bone layer fatigue very unique feature of the female avian skeleton is way bird lays down supply highly unstable secondary in marrow cavities bones during reproductive period [...]
The ribs have been modified by inclusion of uncinate process rearward projection bone which gives strength to cage. Fowl skeleton Credit Bradley The Structure of . The vertebral column is often described by way formula that refers to number vertebrae in each major sections Atlas atlasaxis base skull quite different all other bones [...]
The ossification process then hardens cartilage when bone takes up minerals mainly calcium carbonate. Fowl skeleton Credit Bradley The Structure of . Compared to other animals size of head has been reduced significantly large would hindrance when flying [...]
Fusion of the second to fifth vertebrae provides rigidity for structural strength necessary flight. A special bone cell called an osteocyte is found in each lacunae [...]
While fowls are not able to fly well they still retain that ability some extent. The leg skeleton may be divided into pelvic girdle or hip bones Ileum Ischium Pubis pin Femur thighbone Tibia and fibia Pes foot tarsus metatarsus digits toes Unlike with other animals such as mammals of opposing sides pelvis do not meet mid ventral line [...]
Ergosterol a compound under the skin of animals including poultry is converted to usable Vitamin by rays sun. It is short and projects from the cranial end passes through ringlike atlas. The third to sixth have two segments Vertebral Sternal All except first and last uncinate meaning hooked or bent processes that project backward over outer surface of next rib connect it by ligament which adds strength thoracic cavity. Its upper or dorsal end is connected with the coracoid bone [...]
