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Your Environment. Your Health.

Revised Guides for Organ Sampling and Trimming in Rats and Mice

Necropsy Support

Complete Guide


Much of the work carried out by DTT is in support of the National Toxicology Program (NTP), an interagency partnership of the Food and Drug Administration, National Institute for Occupational Safety and Health, and NIEHS.

Visit the NTP Website

Cardiovascular System

  • Heart ("/Rhythmyx/assembler/render?sys_contentid=34251&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34251" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34251" sys_siteid="" sys_folderid="")

Digestive System

  • Esophagus and Trachea (oral study) ("/Rhythmyx/assembler/render?sys_contentid=34278&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34278" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34278" sys_siteid="" sys_folderid="")
  • GI Tract ("/Rhythmyx/assembler/render?sys_contentid=34248&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34248" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34248" sys_siteid="" sys_folderid="")
  • Intestine ("/Rhythmyx/assembler/render?sys_contentid=34252&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34252" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34252" sys_siteid="" sys_folderid="")
  • Liver and Gall bladder (mouse only) ("/Rhythmyx/assembler/render?sys_contentid=34253&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34253" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34253" sys_siteid="" sys_folderid="")
  • Stomach ("/Rhythmyx/assembler/render?sys_contentid=34275&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34275" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34275" sys_siteid="" sys_folderid="")
  • Tongue ("/Rhythmyx/assembler/render?sys_contentid=34277&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34277" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34277" sys_siteid="" sys_folderid="")

Endocrine System

  • Adrenal gland ("/Rhythmyx/assembler/render?sys_contentid=34245&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34245" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34245" sys_siteid="" sys_folderid="")
  • Pituitary gland ("/Rhythmyx/assembler/render?sys_contentid=34246&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34246" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34246" sys_siteid="" sys_folderid="")
  • Thyroid gland, Parathyroid gland, Trachea (oral study) and Esophagus ("/Rhythmyx/assembler/render?sys_contentid=34278&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34278" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34278" sys_siteid="" sys_folderid="")

Female Genital System

  • Female Reproductive system ("/Rhythmyx/assembler/render?sys_contentid=34247&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34247" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34247" sys_siteid="" sys_folderid="")
  • Female uterus bladder ("/Rhythmyx/assembler/render?sys_contentid=34247&sys_revision=2&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34247" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34247" sys_siteid="" sys_folderid="")

Integumentary System

  • Mammary gland and Skin ("/Rhythmyx/assembler/render?sys_contentid=34272&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34272" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34272" sys_siteid="" sys_folderid="")
  • Zymbal gland ("/Rhythmyx/assembler/render?sys_contentid=34277&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34277" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34277" sys_siteid="" sys_folderid="")

Lymphoreticular System

  • Bone marrow (Sternum) ("/Rhythmyx/assembler/render?sys_contentid=34251&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34251" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34251" sys_siteid="" sys_folderid="")
  • Spleen ("/Rhythmyx/assembler/render?sys_contentid=34275&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34275" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34275" sys_siteid="" sys_folderid="")
  • Thymus ("/Rhythmyx/assembler/render?sys_contentid=34276&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34276" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34276" sys_siteid="" sys_folderid="")

Nervous System

  • Brain ("/Rhythmyx/assembler/render?sys_contentid=34246&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34246" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34246" sys_siteid="" sys_folderid="")
  • Spinal Cord and Spinal nerve root ("/Rhythmyx/assembler/render?sys_contentid=34274&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34274" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34274" sys_siteid="" sys_folderid="")

Male Genital System

  • Male Reproductive system ("/Rhythmyx/assembler/render?sys_contentid=34271&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34271" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34271" sys_siteid="" sys_folderid="")
  • Testis and Rete testis ("/Rhythmyx/assembler/render?sys_contentid=34271&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34271" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34271" sys_siteid="" sys_folderid="")

Musculoskeletal system

  • Musculoskeletal ("/Rhythmyx/assembler/render?sys_contentid=34272&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34272" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34272" sys_siteid="" sys_folderid="")

Respiratory System

  • Lung ("/Rhythmyx/assembler/render?sys_contentid=34276&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34276" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34276" sys_siteid="" sys_folderid="")
  • Lung Inflation States ("/Rhythmyx/assembler/render?sys_contentid=34254&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34254" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34254" sys_siteid="" sys_folderid="")
  • Nasal Cavity Sections ("/Rhythmyx/assembler/render?sys_contentid=34273&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34273" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34273" sys_siteid="" sys_folderid="")| Infusion ("/Rhythmyx/assembler/render?sys_contentid=34273&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34273" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34273" sys_siteid="" sys_folderid="")
  • Anterior and Posterior Nasal Cavity Sections ("/Rhythmyx/assembler/render?sys_contentid=34273&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34273" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34273" sys_siteid="" sys_folderid="")
  • Nasal cavity, Nasopharynx and Paranasal sinus ("/Rhythmyx/assembler/render?sys_contentid=34273&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34273" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34273" sys_siteid="" sys_folderid="")
  • Trachea (inhalation study) ("/Rhythmyx/assembler/render?sys_contentid=34278&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34278" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34278" sys_siteid="" sys_folderid="")

Urinary System

  • Kidney and Ureter ("/Rhythmyx/assembler/render?sys_contentid=34245&sys_revision=2&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34245" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34245" sys_siteid="" sys_folderid="")
  • Urinary bladder ("/Rhythmyx/assembler/render?sys_contentid=34271&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34271" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34271" sys_siteid="" sys_folderid="") | Female Urinary bladder ("/Rhythmyx/assembler/render?sys_contentid=34247&sys_revision=2&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="34247" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="34247" sys_siteid="" sys_folderid="")
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