Overview of the Mandible A comparative study of the lower jaw or mandible in vertebrates explores the evolutionary adaptations, structural variations, and functional modifications of this critical skeletal element across different vertebrate groups. Here’s an overview of key aspects to consider: Evolutionary Development Comparative Anatomy in Vertebrate Groups Cartilaginous Fishes (Chondrichthyes): Bony Fishes (Osteichthyes): Lower […]
JAW SUSPENSIONS IN VERTEBRATES Jaw suspension means attachment of the lower jaw with the upper jaw or the skull for efficient biting and chewing. There are different ways in which these attachments are attained depending upon the modifications in visceral arches in vertebrates. The vertebrate skull has three major parts – neurocranium, dermatocranium and spianchnocranium.
Skull Bones of Scoliodon Skull Bones are consists of Comments 1. Cranium and sense capsules Made up of a single piece of cartilage and divisible into 4 regions. 2. Visceral skeleton It forms jaws, skeleton of pharynx and a series of V-shaped visceral arches around buccal cavity and pharynx. Important arches are : Skull Bones
Comparative study of Vertebral Column Scoliodon : Vertebral Column Comments : It Scoliodo Vertebral Column of 130 vertebrae divided into trunk and caudal regions. Vertebrae are amphicoelous. Vertebrae of Frog (Vertebral Column of Frog) Comments Vertebrae of Varanus (Vertebral Column of Varanus) Comments Vertebrae of Fowl (Vertebral Column of Fowl) Comments Vertebrae of Rabbit (Vertebral
Comparative study of Pelvic Girdles of vertebrate Scoliodon Pectoral Girdle and Fins Comments Pectoral Girdle and Sternum of Frog Comments : Pectoral Girdle of Varanus Comments Pectoral Girdle of Fowl Comments Pectoral Girdle of Rabbit Comments
Comparative study of Pelvic Girdles of vertebrate Scoliodon Pelvic Girdle and Fins Comments Pelvic Girdle of Frog Comments Pelvic Girdle of Varanus : Left Innominate : Lateral View Comments : Pelvic Girdle of Fowl : Outer View Comments Pelvic Girdle of Rabbit Comments
Comparative study of Forelimb bones of vertebrate Forelimb Bones of Frog Forelimb Bones of Frog are Humerus, radio-ulna and hand bones constitute bones of forelimb. Comments : Forelimb Bone of Varanus Comments: Forelimb Bone of Varanus is constituted by humerus, radius and ulna and bones of forefoot or hand. Forelimb Bones of Fowl The Forelimb
Comparative study of Hind limb bones of vertebrate Hind Limb Bones of Frog Hind limb constitute the femur, tibio-fibula, astragalus-calcaneum and bones of foot. Comments Hind Limb Bones of Varanus Hind limb consists of femur, tibia, fibula and bones of hind foot. Comments: Hind Limb Bones of Fowl Hind limb comprises of femur, tibio-tarsus and
