Description
The rabbit dissection system involves a structured procedure designed to expose and study the internal and external anatomical features and organ systems of a rabbit (Oryctolagus cuniculus) for educational purposes.
Dissection Procedure
The preserved rabbit is placed ventral side up in a dissecting tray and secured with tied limbs or pins to prevent movement during dissection.
An incision is made along the midline from the sternum (breastbone) to the pelvis, first through the skin and then the muscle layer.
Skin and muscle flaps are reflected and appropriately pinned, exposing the peritoneum—a thin membrane lining the abdominal cavity—which is then cut to reveal the abdominal organs.
Additional incisions through the ribs and breastbone allow access to the thoracic cavity, separating it from the abdomen via the diaphragm.
Systems Studied
Digestive System: After opening the body cavities, organs such as the liver (with multiple lobes), gallbladder, stomach, spleen, small and large intestines, pancreas, and associated ducts are examined for structure and function.
Respiratory System: The thoracic cavity contains the lungs and trachea, separated from the abdomen by the diaphragm, which plays a key role in breathing.
Circulatory System: Careful removal of the thymus (overlying the heart) and pericardium exposes the heart, major vessels, and lungs for study of blood flow and oxygenation.
Urogenital System: Kidneys, ureters, bladder, and reproductive organs (testes, ovaries, uterus, etc.) are located and studied in the abdominal cavity.
Muscular and Skeletal System: The guide includes analysis of skeletal features and dorsal/ventral muscles, using diagrams to highlight bone and muscle names.
Key Features
The rabbit dissection provides a comparative model for mammalian anatomy and is used to identify, differentiate, and understand the structure and function of all major organ systems.
Safety and ethical guidelines are followed for specimen handling, with procedures including use of gloves, tools, and careful disposal of tissues.
This system enables detailed exploration of rabbit anatomy, helping students and researchers understand mammalian physiology and organ relationships.