A bit of information before anatomy
Species: Canis Lupus
I won't get too detailed into anatomy, as most isn't used in roleplay. Look at the picture for bones.
Jaw: Lower Maxillary/Mandible
Vein in Neck: Jugular
Neck: Cervical Vertebrae
Neck to Middle: Thoratic Vertebrae
Middle to Pelvis: Lumbar Vertebrae
Tail: Caudal Vertebrae
Front Paws: Toe Digits Anterior
Back Paws: Toe Digits Posterior
If there's anything I need to add, just comment and I'll add it!