170 likes | 1.58k Views
Fanciful composite. Vertebral articulation. (Body). Rib articulation. Frog. sacral. (cervical). Sternum is associated with pectoral girdle (not with thoracic ribs). Alligator. Ribs meet at sternum. Have short ribs. Lack ribs. Chevron bones.
E N D
Fanciful composite Vertebral articulation (Body) Rib articulation
Frog sacral (cervical) Sternum is associated with pectoral girdle (not with thoracic ribs)
Alligator Ribs meet at sternum Have short ribs Lack ribs Chevron bones Sternum is single anteriorly, splits posteriorly
Turtle Turtle thoracic vertebrae, sacrum and first caudal vertebrae are fused to the carapace. Turtles lack true lumbar vertebrae.
Pigeon Ribs meet sternum flexible Fused caudal vertebrae Sternum is large and ossified, with a prominent keel
Cat Anterior Articulate with ribs 7 cervical Posterior 3-5 vertebrae 3-40 Sternum is a series of separate bones (jointed rod) Human: 3-part plate
Human 7 12 5 5 fused 3-5 fused
In amphibians, ribs are reduced/lacking. Frogs have only sacral ribs. Frog sacral (cervical) Sternum is associated with pectoral girdle (not with thoracic ribs)
Turtles have no cervical ribs. The thoracic ribs are long, flat, and fused to the carapace. Sacral ribs unite with the pelvic girdle. Turtles have no sternum
In crocodilians, ribs are double-headed. Most vertebrae bear ribs. Thoracic vertebrae have 2-part ribs. Alligator Ribs meet at sternum Have short ribs Lack ribs 2 fused Chevron bones Sternum is single anteriorly, splits posteriorly
In birds, all 5 groups of vertebrae bear ribs. Anterior thoracic ribs unite with sternum. Thoracic ribs have 2 parts. Pigeon Ribs meet sternum flexible Fused caudal vertebrae Sternum is large and ossified, with a prominent keel
Cat Anterior Articulate with ribs 7 cervical Thoracic vertebrae have 2-part ribs. Mammals lack ribs in the lumbar and caudal regions. Posterior Sternum is a series of separate bones (jointed rod) In human, the sternum is a 3-part plate