veterinarian tightens screw on examination glass with a tissue sample to test meat on parasites

analysis analyzing biological biopsy bolt check disease doctor equipment exam examination examining glass hands health healthcare instrument lab laboratory lungs magnify meat medical medicine micro microbiology microorganism microscopy outdoor parasite parasitic pig pleura prepare research sample screw search squeeze test tight tighten tissue trichinella trichinellosis trichinosis vet veterinarian veterinary washbowl