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Large Animal Dissection Selective Fall 2022 – Dr. Ayres

Purpose of Selective:

Second Semester Large Animal Anatomy has moved from a dissection-based course to one that uses models, plastinated specimens, and prosected cadavers for teaching large animal anatomy.  Although there is an opportunity for a small group of students to dissect distal equine limbs during this course, there are students who have expressed an interest in dissecting other large animal species or anatomical areas beyond horse distal limbs with the input of an instructor.  One way to address this interest is to offer a selective for interested second-year students to dissect large animal cadavers.  Dr. Ayres has offered to organize and run such a selective.


Fall 2022 – Tuesdays from 1-3 PM

Dr. Ayres would be available on Tuesday afternoons to oversee the selective and help with identification of anatomy as well as discuss clinical relevance or set up clinician visits.


½ credit (40 hours)

Students Eligible for this Selective:

Six to 8 second-year students would work in pairs to dissect large animal specimens

Organization of Selective

This is intended to be a student driven selective.  Prior to the start of the selective in Fall 2022, interested students would be canvassed to determine specific species and anatomical areas of interest. Dr. Ayres would organize specimens with the help of Richard Regos.  When available, fresh specimens would be used to complement fixed cadavers.  Students would determine the direction of this selective which could include:

  • A full body dissection of a single species
  • Comparative dissection of more than one species (different student pairs working on different species)
  • Detailed emphasis of an organ system or specific area of the body
  • Designing and producing a prosected specimen or atlas of a dissected specimen or part of a dissected specimen (pictures, drawings, or videos)
  • Working with a clinician to anatomically walk through a procedure (such as nerve blocks in horses/cattle, surgical approaches to colic surgery/displaced abomasums) on a cadaver
  • Other student ideas


This selective would be impacted by availability of specimens.  This is why it is important that students convey their interests in different species or areas of specimens prior to the start of the selective, preferably in late April/May.  It is possible to get cadavers from sheep and pig projects on campus.  There are some available extra horse heads.  There are sources for possible goat and alpaca donations.  We have been discussing the possibility of mini-horse donations with Woodstock.  Specimen use for this selective would be coordinated with the need for plastination specimens, and prosection specimens working closely with Dr. Senos and Richard Regos.  Fresh specimens are sometimes available from LAMS projects, or might be available if anatomical pathology rotations start again on this campus.

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