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Comparative Anatomy
Mudpuppy Appendicular, Axial, and Skull Skeleton
| Question | Answer |
|---|---|
| Neural Spine | Pointed process extending dorsally off of the neural arch on the trunk and caudal vertebrae |
| Neural Arch | Found on all the vertebrae, making the roof of the vertebrae on the dorsal side |
| Centrum | The center of the vertebrae, the base which the neural and hemal arches, and neural and hemal spines extend off of |
| Ribs | Extensions laterally off of the trunk vertebrae |
| Hemal Arch | Found on all the vertebrae, making the floor of the vertebrae on the ventral side |
| Hemal Spine | Pointed process extending ventrally off of the hemal arch on the caudal vertebrae |
| Cervical Vertebrae | A singular vertebrae connecting the trunk vertebrae to the skull. Called the Atlas, articulates with the occipital condyles |
| Trunk Vertebrae | ~17 trunk vertebrae with neural spines and ribs that extend from the atlas to the pelvic girdle where the sacral vertebrae are |
| Sacral Vertebrae | Single vertebrae attached to the pelvic limbs with modified ribs. Attached to the trunk vertebrae and the caudal vertebrae |
| Caudal Vertebrae | Vertebrae attached to the sacral vertebrae with neural spines and hemal spines |
| Premaxilla | V-shaped at the anterior most portion of the skull, forming the upper jaw with teeth |
| Frontal | Bone of skull that extends from the premaxilla, back to the parietal, forming the dorsal part of the eye orbit |
| Parietal | Most posterior dorsal bone, attached to the frontal |
| Quadrate | Posterior to the eye orbit and anterior to the squamosal |
| Vomer | Tooth-bearing bone posterior to the premaxilla but anterior on the skull |
| Pterygoid | Tooth-bearing bone posterior to the vomer, medial in the skull, but on the ventral sides |
| Parasphenoid | The palate bone on the ventral side of the skull, making up the base of it |
| Dentary | Lateral bone making up the lower jaw |
| Exoccipital | Paired on the posterior wall of the skull, hosting the occipital condyles |
| Foramen Magnum | Large opening in medial positioning on the posterior wall of the skull |
| Squamosal | Lateral to the parietal bone, articulating with the quadrate bone |
| Otic Region | EAR REGION FUCK EVERYTHING |
| Basibranchial | Arch connecting the hypohyal to the rest of the branchials |
| Ceratobranchial | Branches off of the basibrancial in a posterior direction |
| Epibranchial | Branches off of the ceratobranchial in a posterior direction |
| Hypohyal | The joining of the ceratohyal, attaches to the basibranchial, forms the hyoid arch in the anterior position |
| Ceratohyal | Branches off the hypohyal, makes up the hyoid arch in the anterior position |
| Coracoid Cartilage | Broad plates of cartilage that extend medially and over lap |
| Procoracoid Cartilage | A lateral process that extends anterior from the coracoid |
| Scapula | Ossified and extends dorsally, lateral to the cartilages of the coracoid and procoracoid |
| Suprascapular Cartilage | A distal projection of cartilage from the scapula |
| Humerus | Bone from scapula to the radius and ulna |
| Radius | The medial bone that is distal to the humerus |
| Ulna | The lateral bone that is distal to the humerus |
| Carpals | Make up the "wrist" joint area |
| Metacarpals | |
| Phalanges | Most distal part of the limb |
| Pubis Cartilage | Projection that goes anterior, makes up the puboischiadic plate |
| Ischium Bone | Extends posterior, joined to the pubis cartilage, makes up the puboischiadic plate |
| Ilium | Extend dorsally from the puboischiadic plate, fuse with the modified ribs of the sacral vertebrae |
| Acetabulum | A depression at the site of articulation for the hind limbs to the pelvic girdle |
| Femur | Bone extending from acetabulum to the tibia and fibula |
| Tibia | The medial bone attached to the femur |
| Fibula | The lateral bone attached to the femur |
| Tarsals | "Ankle" bones attached to Tibia and Fibula |
| Metatarsals | |
| Phalanges | Most distal part of the hind limb |