opisthotonus in a man suffering from tetanus

opisthotonus neurotoxin tetanospasmin toxin clostridium tetani bacteriology biochemical biochemistry biological biology chemical chemistry compound illustration lockjaw medical medicine microbiological microbiology molecular model molecule neurotropic exotoxin protein spasmogenic structure tetanus 3d disease toxic substance man hyperextension spasticity extreme arched pose extrapyramidal spasm seizure tonic symptom clinical plain background metal nail rusty infected wound infection