comparative osteology.ppt by ZubairLatif

VIEWS: 40 PAGES: 14

More Info
									Comparative Osteology
Learning Outcome

To

“Identify developmental differences in skeletons
of major domestic animals and to describe their
implications”
Axial skeleton

      Variation in Shape of Skull

            Dog
            Cat
            Horse
            Ox

      Position of Orbital Cavities
      Binocular field of vision


(Age, Sex, Breed)
(Age, Sex, Breed)
Mandible

           Mandibular Space ( more in ox and less in
Horse)
          Alveoli for canine teeth ( in horse male
Present , and in female horse may present, while in
ox,absent)
          Weight
          Articular surface of condyle ( in horse straight and in ox curved
          .
          .
          relate to individual
          requirements
          Vertebral Column




Formation of withers in Horse and Ox
Articulation of lumbar transverse process
      Ox         Horse




           Pig
Dog
Thoracic Girdle

      Coracoid
      Clavicle
      Scapula

      Variable development of these components
      Bipedal vs Quadrupedal mode of locomotion
           Fusion of Radius and
           Ulna

           Loss of supination and
           pronation in ungulates


           What would have
           happened if radius and
           ulna of horses were not
           fused?

Dog   Ox
Raising of manus from
plantigrade to unguligrade

Reduction of digits

Reduction of bones leads
to strengthening of
remaining components



                               Dog           Ox, Horse
                           (Digitigrade)   (Unguligrade)
Flat vs Concave pelvic floor

Pelvic Axis
      Broken vs straight

Conjugate Diameter
Vertical Diameter
      Inclination of Pelvis

Transverse Diameter

								
To top